Report (24) w I
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 00 01 10
060917
TABLE OF CONTENTS RECEET
DIVISION 0—PROCUREMENT AND CONTRACTING REQUIREMENTS JUL 2 4 2017
Section 00 01 01 Project Title Page CITYTIGARD
Section 00 01 10 Table of Contents BUILDING DIVISION
Section 00 72 00 General Conditions
Form Agreement Between Contractor and Architect Concerning Use of Electronic Media
DIVISION 1 —GENERAL REQUIREMENTS
Section 01 10 00 Summary
Section 01 23 00 Alternates
Section 01 25 00 Substitution Procedures
Section 01 26 00 Contract Modification Procedures
Section 01 29 00 Payment Procedures
Section 01 31 00 Project Management and Coordination
Section 01 32 00 Construction Progress Documentation
Section 01 33 00 Submittal Procedures
Section 01 40 00 Quality Requirements
Section 01 42 00 References
Section 01 50 00 Temporary Facilities and Controls
Section 01 60 00 Product Requirements
Section 01 73 00 Execution
Section 01 74 19 Construction Waste Management and Disposal
Section 01 77 00 Closeout Procedures
Section 01 78 23 Operation and Maintenance Data
Section 01 78 39 Project Record Documents
Section 01 79 00 Demonstration and Training
DIVISION 2—EXISTING CONDITIONS
Section 02 41 19 Selective Demolition
DIVISION 3—CONCRETE
Section 03 30 00 Cast-In-Place Concrete
DIVISION 5—METALS
Section 05 12 00 Structural Steel Framing //p a 5 sA) 1i/i&7
Section 05 50 00 Metal Fabrications //
DIVISION 6—WOOD, PLASTICS, AND COMPOSITES OFFICE COPY
Section 06 10 00 Rough Carpentry
Section 06 40 00 Architectural Woodwork
DIVISION 7—THERMAL AND MOISTURE PROTECTION
Section 07 01 50 Preparation for Re-Roofinq
Section 07 01 50.72 Restoration of Aggregate Surfaced Built-Up Roofing
Section 07 21 00 Thermal Insulation
Section 07 27 00 Air Barriers
Section 07 51 13.11 Built-Up Asphalt Roofing, Hot Applied
Section 07 51 13.13 Built-Up Asphalt Roofing, Cold Applied
Section 07 62 00 Sheet Metal Flashing and Trim
Section 07 81 00 Applied Fireproofing
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TABLE OF CONTENTS
Section 07 84 13 Penetration Firestopping
Section 07 84 43 Joint Firestopping
Section 07 92 00 Joint Sealants
DIVISION 8—OPENINGS
Section 08 11 13 Hollow Metal Doors and Frames
Section 08 14 00 Wood Doors
Section 08 31 13 Access Doors and Frames
Section 08 33 23 Overhead Coiling Doors
Section 08 36 13 Sectional Doors
Section 08 43 13 Aluminum-Framed Storefronts
Section 08 62 20 Reflective Tubular Skylights
Section 08 63 00 Metal-Framed Skylights
Section 08 71 00 Door Hardware
Section 08 80 00 Glazing
DIVISION 9—FINISHES
Section 09 22 16 Non-Structural Metal Framing
Section 09 29 00 Gypsum Board
Section 09 30 00 Tiling
Section 09 51 00 Acoustical Ceilings
Section 09 65 00 Resilient Flooring
Section 09 68 00 Carpeting
Section 09 84 00 Acoustic Room Components
Section 09 90 00 Painting and Coating
DIVISION 10—SPECIALTIES
Section 10 11 00 Visual Display Units
Section 10 14 00 Signage
Section 10 26 10 Wall Protection and Corner Guards
Section 10 28 13 Toilet Accessories
Section 10 44 00 Fire Protection Specialties
DIVISION 11 —EQUIPMENT
Section 11 30 13 Residential Appliances
Section 11 52 13 Projection Screens
DIVISION 12—FURNISHINGS
Section 12 24 13 Roller Window Shades
DIVISION 21 —FIRE SUPPRESSION
Section 21 13 00 Fire Suppression Sprinkler System
DIVISION 22—PLUMBING
Section 22 05 00 Plumbing Materials and Methods
Section 22 07 00 Plumbing Insulation
Section 22 10 00 Plumbing Piping and Pumps
Section 22 40 00 Plumbing Fixtures
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TABLE OF CONTENTS
DIVISION 23—HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)
Section 23 05 00 HVAC Materials and Methods
Section 23 05 48 Mechanical Sound and Vibration Control
Section 23 05 90 Testing, Adjusting and Balancing
Section 23 07 00 HVAC Insulation
Section 23 09 23 DDC Controls
Section 23 09 93 Sequence of Operations for HVAC Controls
Section 23 10 00 Facility Fuel Systems
Section 23 21 00 Hydronic Piping and Pumps
Section 23 23 00 Refrigerant Piping System
Section 23 30 00 Air Distribution
Section 23 34 00 HVAC Fans
Section 23 57 00 Heat Exchangers
Section 23 74 00 Central Station HVAC Units
DIVISION 26—ELECTRICAL
Section 26 05 00 Common Work Results for Electrical
Section 26 05 19 Electrical Power Conductors and Cables
Section 26 05 21 Metal-Clad Cable
Section 26 05 26 Grounding and Bonding for Electrical Systems
Section 26 05 29 Hangers and Supports for Electrical Systems
Section 26 05 33 Raceway and Boxes for Electrical Systems
Section 26 05 53 Identification for Electrical Systems
Section 26 09 23 Lighting Control Devices
Section 26 09 43 Networked Lighting Controls
Section 26 22 00 Transformers
Section 26 24 16 Panelboards
Section 26 27 26 Wiring Devices
Section 26 28 00 Circuit Protective Devices
Section 26 50 00 Lighting
DIVISION 27—COMMUNICATIONS
Section 27 00 00 Project Overview
Section 27 01 00 Basic Communications Requirements
Section 27 01 30 Administrative Requirements
Section 27 01 70 Testing, Identification, and Administration
Section 27 01 80 Technology Documentation
Section 27 01 90 Support and Warranty
Section 27 05 30 Interior Communication Pathways
Section 27 11 16 Equipment and Telecommunication Room
Section 27 15 00 Horizontal Cabling
Section 27 51 13 Paging Systems
DIVISION 28—ELECTRONIC SAFETY AND SECURITY
Section 28 00 10 Basic Requirements
Section 28 31 10 Fire Alarm and Detection System Modification
END OF DOCUMENT
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PREPARATION FOR RE-ROOFING
PART 1 -GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and
Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Roof tear-off.
2. Removal of base flashings.
3. Uplift securement.
4. Roof replacement preparation.
B. Related Requirements:
1. Division 00 Document"Available Information," including the following pre-construction test report
attachments.
a. Infrared roof moisture survey report.
b. Construction Drawings for existing roofing system.
2. Division 01 Section "Summary"for use of the premises and phasing requirements, and for restrictions
on use of the premises due to Owner or tenant occupancy.
3. Division 01 Section "Photographic Documentation"for photographs taken before and during re-roofing
preparation.
4. Division 01 Section "Temporary Facilities and Controls"for temporary construction and environmental
protection measures.
C. Alternates: Refer to Division 01 Section "Alternates"for description of Work in this Section affected by
alternates.
1.3 DESCRIPTION OF WORK
A. Re-roofing preparation Work consists of the following:
1. Preparation for Roof Areas 9 & 11:
a. Preparation for: Roof replacement.
b. Existing Roof Type: Aggregate surfaced BUR.
c. Existing Deck Type: Metal deck.
d. Roof tear-off.
e. Removal and reinstallation of indicated components, accessories, and equipment.
f. Raising of equipment curbs, and perimeter coping wall per project drawings.
g. Removal of base flashings.
2. Preparation for Roof Area 17:
a. Preparation for: Roof replacement.
b. Existing Roof Type: Aggregate surfaced BUR.
c. Existing Deck Type: Tectum.
d. Roof tear-off.
e. Removal and reinstallation of indicated components, accessories, and equipment.
f. f. Removal of abandoned equipment curbs and drain.
g. Raising of equipment curbs, and perimeter coping wall per project drawings.
h. Raising of areas separator wall between areas 11 & 17.
i. Removal of base flashings.
1.4 MATERIALS OWNERSHIP
A. Except for items or materials indicated to be reused, reinstalled, or otherwise indicated to remain Owner's
property, demolished materials shall become Contractor's property and shall be removed from Project site.
1.5 DEFINITIONS
A. Roofing Terminology: Refer to ASTM D 1079 and glossary in NRCA's"The NRCA Roofing and
Waterproofing Manual"for definition of terms related to roofing work in this Section.
B. Existing Membrane Roofing System: Roofing system identified above, including roofing membrane, roof
insulation, surfacing, and components and accessories between deck and roofing membrane.
C. Roof Tear-Off: Removal of existing membrane roofing system from deck.
gi
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PREPARATION FOR RE-ROOFING
D. Remove: Detach items from existing construction and legally dispose of them off-site unless indicated to be
removed and reinstalled.
E. Construction Waste: Building and site improvement materials and other solid waste resulting from
construction, remodeling, renovation, or repair operations. Construction waste includes packaging.
F. Demolition Waste: Building and site improvement materials resulting from demolition or selective demolition
operations.
G. Disposal: Removal off-site of demolition and construction waste and subsequent sale, recycling, reuse, or
deposit in landfill or incinerator acceptable to authorities having jurisdiction.
1.6 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
1.7 INFORMATIONAL SUBMITTALS
A. Digital Images or Videos: Show existing conditions of adjoining construction and site improvements,
including exterior and interior finish surfaces, which might be misconstrued as having been damaged by
reroofing operations. Submit before Work begins.
B. Proposed Protection Measures: Submit report, including Drawings, that indicates the measures proposed
for protecting individuals and property for dust control and for noise control. Indicate proposed locations
and construction of barriers.
C. Schedule of Re-Roofing Preparation Activities: Indicate the following:
1. Detailed sequence of re-roofing preparation work, with starting and ending dates for each activity.
Ensure occupants' on-site operations are uninterrupted.
2. Interruption of utility services. Indicate how long utility services will be interrupted.
3. Coordination of Owner's continuing occupancy of portions of existing building.
1.8 QUALITY ASSURANCE
A. Installer Qualifications: Installer of new membrane roofing system.
B. Reroofing Conference: Conduct conference at Project site.
1. Meet with Owner; Owner's insurer if applicable; testing and inspecting agency representative; roofing
system manufacturer's representative; deck Installer; roofing Installer including project manager,
superintendent, and foreman; and installers whose work interfaces with or affects reroofing including
installers of roof accessories and roof-mounted equipment.
2. Review methods and procedures related to roofing system tear-off and replacement including, but not
limited to, the following:
a. Reroofing preparation, including membrane roofing system manufacturer's written instructions.
b. Temporary protection requirements for existing roofing system that is to remain during and after
installation.
c. Existing roof drains and roof drainage during each stage of reroofing, and roof drain plugging and
plug removal requirements.
d. Construction schedule and availability of materials, Installer's personnel, equipment, and facilities
needed to make progress and avoid delays.
e. Condition and acceptance of existing roof deck and base flashing substrate for reuse.
f. Structural loading limitations of deck during reroofing.
g. Base flashings, special roofing details, drainage, penetrations, equipment curbs, and condition of
other construction that will affect reroofing.
h. HVAC shutdown and sealing of air intakes.
i. Shutdown of fire-suppression, -protection, and -alarm and -detection systems.
j. Existing conditions that may require notification of Architect before proceeding.
1.9 PROJECT CONDITIONS
A. Owner will occupy portions of building immediately below reroofing area. Conduct reroofing so Owner's
operations will not be disrupted. Provide Owner with not less than 48 hours' notice of activities that may
affect Owner's operations.
1. Coordinate work activities daily with Owner so Owner can place protective dust or water leakage
covers over sensitive equipment or furnishings, shut down HVAC and fire-alarm or-detection
equipment if needed, and evacuate occupants from below the work area.
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PREPARATION FOR RE-ROOFING
B. Protect building to be reroofed, adjacent buildings, walkways, site improvements, exterior plantings, and
landscaping from damage or soiling from reroofing operations.
C. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities.
1. A roof moisture survey of existing membrane roofing system is available for Contractor's reference.
2. Construction Drawings for existing roofing system are provided for Contractor's reference. Contractor
is responsible for conclusions derived from existing documents.
D. Limit construction loads on roof to rooftop equipment wheel loads and uniformly distributed loads not
exceeding recommendations of Contractor's professional engineer based upon site inspection and
analysis.
E. Weather Limitations: Proceed with reroofing preparation only when existing and forecasted weather
conditions permit Work to proceed without water entering existing roofing system or building.
F. Daily Protection: Coordinate installation of roofing so insulation and other components of roofing system
not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or
when rain is forecast.
G. Hazardous Materials: It is not expected that hazardous materials such as asbestos-containing materials will
be encountered in the Work.
1. If materials suspected of containing hazardous materials are encountered, do not disturb; immediately
notify Architect and Owner. Hazardous materials will be removed by Owner under a separate contract.
PART 2 - PRODUCTS
2.1 AUXILIARY REROOFING MATERIALS
A. General: Auxiliary reroofing preparation materials recommended by roofing system manufacturer for
intended use and compatible with components of new membrane roofing system.
B. Metal Flashing Sheet: Metal flashing sheet is specified in Section 076200 "Sheet Metal Flashing and Trim."
PART 3 - EXECUTION
3.1 PREPARATION, GENERAL
A. Existing Roof Protection: Protect existing membrane roofing system that is indicated not to be reroofed.
1. Loosely lay 1-inch- (25-mm-) minimum thick, molded expanded polystyrene (MEPS) insulation over
the roofing membrane in areas indicated. Loosely lay 15/32-inch (12-mm) plywood or OSB panels
over MEPS. Extend MEPS past edges of plywood or OSB panels a minimum of 1 inch (25 mm).
2. Limit traffic and material storage to areas of existing roofing membrane that have been protected.
3. Maintain temporary protection and leave in place until replacement roofing has been completed.
Remove temporary protection on completion of reroofing.
B. Pollution Control: Comply with environmental regulations of authorities having jurisdiction. Limit spread of
dust and debris.
1. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.
2. Remove debris from building roof by chute, hoist, or other device that will convey debris to grade level.
C. Air Intake Shutdown: Coordinate with Owner to shut down air-intake equipment in the vicinity of the Work.
Cover air-intake louvers before proceeding with reroofing work that could affect indoor air quality or activate
smoke detectors in the ductwork.
D. Temporary Weather Protection: During removal operations, have sufficient and suitable materials on-site to
facilitate rapid installation of temporary protection in the event of unexpected rain.
E. Roof Drain Protection: Maintain roof drains in functioning condition to ensure roof drainage at end of each
workday. Prevent debris from entering or blocking roof drains and conductors. Use roof-drain plugs
specifically designed for this purpose. Remove roof-drain plugs at end of each workday, when no work is
taking place, or when rain is forecast.
1. If roof drains are temporarily blocked or unserviceable due to roofing system removal or partial
installation of new membrane roofing system, provide alternative drainage method to remove water
and eliminate ponding. Do not permit water to enter into or under existing membrane roofing system
components that are to remain.
3.2 ROOF TEAR-OFF
A. General: Notify Owner each day of extent of roof tear-off proposed for that day.
a
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PREPARATION FOR RE-ROOFING
B. Remove aggregate ballast from roofing membrane.
C. Roof Drainage: Remove roof drainage items indicated for removal.
D. Roof Tear-Off: Remove existing roofing membrane and other membrane roofing system components down
to the deck.
1. Remove cover boards, roof insulation and substrate boards.
2. Bitumen and felts that are firmly bonded to Tectum decks are permitted to remain if felts are dry.
Remove unadhered bitumen and felts and wet felts.
3. Remove excess asphalt from steel deck. A maximum of 15 lb/100 sq. ft. (0.72 kg/sq. m) of asphalt is
permitted to remain on steel decks.
4. Remove fasteners from deck or cut fasteners off slightly above deck surface.
3.3 DECK PREPARATION
A. Inspect deck after tear-off of membrane roofing system.
B. Roof Deck: If broken or loose fasteners that secure deck panels to one another or to structure are observed
or if deck appears or feels inadequately attached, immediately notify Architect. Do not proceed with
installation until directed by Architect.
1. Unsuitable Deck: If deck surface is not suitable for receiving new roofing or if structural integrity of
deck is suspect, immediately notify Architect. Do not proceed with installation until directed by
Architect.
3.4 EXISTING BASE FLASHINGS
A. Remove existing base flashings
B. Do not damage metal counterflashings that are to remain. Replace metal counterflashings damaged during
removal with counterflashings of same metal, weight or thickness, and finish.
3.5 PARAPET SHEATHING AND CLADDING
A. Parapet Sheathing: Inspect parapet sheathing for deterioration and damage. If parapet sheathing has
deteriorated, immediately notify Architect.
3.6 EXISTING EQUIPMENT CURBS
A. Raise existing equipment curbs that are to remain to rise minimum 8" above new finished roof surface.
3.7 EXISTING PARAPET WALL
A. Raise height of sections of parapet walls to accommodate new insulation heights per project drawings.
3.8 DISPOSAL
A. Collect demolished materials and place in containers. Promptly dispose of demolished materials. Do not
allow demolished materials to accumulate on-site.
1. Storage or sale of demolished items or materials on-site is not permitted.
B. Transport and legally dispose of demolished materials off Owner's property.
3.9 CLEANING
A. Clean adjacent structures and improvements of dust, dirt, and debris caused by preparation for re-roofing
operations. Return adjacent areas to condition existing before operations began.
END OF SECTION
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
PART 1 - GENERAL
1.1 SUMMARY
A. This Section includes the following:
1. Roof re-coating preparation.
2. Re-sealing of existing base flashing.
3. Seam reinforcement of existing base flashing.
4. Repairs to existing roof membrane.
5. Rebuild of drain sumps at all roof drains.
6. Replacement of wood nailers and metal drip edge.
7. Replacement of identified wet insulation.
8. Application of restoration coating and aggregate surfacing.
9. Application of new reflective coating on base flashing.
B. Related Requirements:
1. Division 00 Document"Available Information," including the following pre-construction test report
attachments.
a. Infrared roof moisture survey report.
b. Roof core tensile strength test report and analysis.
2. Division 01 Section "Summary" for use of the premises and phasing requirements, and for restrictions
on use of the premises due to Owner occupancy.
3. Division 07 Section "Sheet Metal Flashing and Trim"for formed metal roof flashings and
counterflashings.
1.2 MATERIALS OWNERSHIP
A. Demolished materials shall become Contractor's property and shall be removed from Project site.
B. All opened and unopened containers of materials that are delivered to the project shall become
Contractor's property and shall be removed from Project site at the end of the project.
1.3 DEFINITIONS
A. Roofing Terminology: Refer to ASTM D 1079 and glossary in NRCA's"The NRCA Roofing Manual"for
definition of terms related to roofing work in this Section.
B. Existing Roofing System: Built-up asphalt roofing, and components and accessories between deck and
roofing membrane.
C. Roofing Re-Coating Preparation: Existing roofing that is to remain and be prepared to accept restorative
coating application.
D. Patching: Removal of a portion of existing membrane roofing system from deck or removal of selected
components and accessories from existing membrane roofing system and replacement with similar
materials.
E. Remove: Detach items from existing construction and legally dispose of them off-site unless indicated to be
removed and reinstalled.
F. Existing to Remain: Existing items of construction that are not indicated to be removed.
1.4 PERFORMANCE REQUIREMENTS
A. General: Provide recoated roofing membrane and base flashings that remain watertight; do not permit the
passage of water; and resist specified uplift pressures, thermally induced movement, and exposure to
weather without failure.
1. Accelerated Weathering: Roofing system shall withstand 2000 hours of exposure when tested
according to ASTM G 152, ASTM G 154, or ASTM G 155.
B. Material Compatibility:
1. Provide roofing materials that are compatible with existing roof system and one another, under
conditions of service and application required, as demonstrated by roofing manufacturer based on
testing and field experience.
2. Provide roof membrane repair materials that match the materials used to create the existing roof
membrane.
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
C. Exterior Fire-Test Exposure: ASTM E 108, Class A; for application and roof slopes indicated, as
determined by testing identical membrane roofing materials by a qualified testing agency. Materials shall be
identified with appropriate markings of applicable testing agency.
1.5 ACTION SUBMITTALS
A. Product Data: For each type of product specified.
1. Provide Manufacturer's Spec Data sheet for each material.
B. Shop Drawings:
1. Provide Submittal construction details for all details requiring replacement or rebuilding. Do not start
work until submittal details are reviewed and approved.
1.6 INFORMATIONAL SUBMITTALS
A. Contractor's Product Certificate: Submit notarized certificate, indicating products intended for Work of this
Section, including product names and numbers and manufacturers' names, with statement indicating that
products to be provided meet the requirements of the Contract Documents.
B. Qualification Data: For Installer.
1. Letter written for this Project indicating manufacturer approval of Installer to apply specified products
and provide specified warranty.
C. Product Test Reports: Based on evaluation of comprehensive tests performed by manufacturer and
witnessed by a qualified testing agency, for components of roofing restoration system as requested by the
owner.
D. Sample Warranties: Unexecuted sample copies of special warranties.
E. Photographs or Videotape: Show existing conditions of adjoining construction and site improvements,
including exterior and interior finish surfaces, which might be misconstrued as having been damaged by re-
coating operations. Submit before Work begins.
F. Inspection Reports: Daily reports of Roofing Inspector. Include weather conditions, description of work
performed, tests performed, defective work observed, and corrective actions required and carried out.
1.7 CLOSEOUT SUBMITTALS
A. Maintenance Data: To include in maintenance manuals.
B. Warranties: Executed copies of approved warranty forms.
1.8 QUALITY ASSURANCE
A. Installer Qualifications: An employer of workers trained and certified by manufacturer, including a full-time
on-site supervisor with a minimum of five years' experience installing products comparable to those
specified, able to communicate verbally with Contractor, Architect, and employees, and the following:
1. Certified by the manufacturer to install manufacturer's product and furnish warranty of type specified.
B. Manufacturer Qualifications: UL listed for roofing systems identical to those specified for this Project and
listed in this Section, with minimum five years' experience in manufacture of comparable products in
successful use in similar applications, and able to furnish warranty with provisions matching specified
requirements.
C. Roofing Inspector Qualifications: A technical representative of manufacturer not engaged in the sale of
products and experienced in the installation and maintenance of the specified roofing system, qualified to
perform roofing observation and inspection specified in Field Quality Control Article, to determine Installer's
compliance with the requirements of this Project, and approved by the manufacturer to issue warranty
certification. The Roofing Inspector shall be one of the following:
1. An authorized full-time technical employee of the manufacturer.
2. An independent party certified as a Registered Roof Observer by the Roof Consultants Institute,
retained by the Contractor or the Manufacturer and approved by the Manufacturer.
D. Periodic Inspections of Work in Progress:
1. Owner Contractor shall engage the services of a qualified roofing Inspector to preform periodic
inspections of the work in progress. Inspector shall forward site observation reports with photos,
describing the work in progress, any deficiencies noted and
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
1.9 ROOFING RESTORATION PREINSTALLATION CONFERENCE
A. Meet with Owner; roofing re-coating materials manufacturer's representative; roofing re-coating Installer
including project manager and foreman; and installers whose work interfaces with or affects re-coating
including installers of roof accessories and roof-mounted equipment requiring removal and replacement as
part of the Work.
1. Review methods and procedures related to re-coating preparation, including membrane roofing
system manufacturer's written instructions.
2. Review temporary protection requirements for existing roofing system that is to remain, during and
after installation.
3. Review roof drainage during each stage of re-coating and review roof drain plugging and plug removal
procedures.
4. Review and finalize construction schedule, and verify availability of materials, Installer's personnel,
equipment, and facilities needed to make progress and avoid delays.
5. Review base flashings, special roofing details, drainage, penetrations, equipment curbs, and condition
of other construction that will affect re-coating.
6. Review HVAC shutdown and sealing of air intakes.
7. Review shutdown of fire-suppression, -protection, and -alarm and-detection systems.
8. Review procedures for asbestos removal or unexpected discovery of asbestos-containing materials.
9. Review governing regulations and requirements for insurance and certificates if applicable.
10. Review existing conditions that may require notification of Owner before proceeding.
11. Review all pertinent submitted construction details.
1.10 PROJECT CONDITIONS
A. Weather Limitations: Proceed with restoration work only when existing and forecasted weather conditions
permit Work to proceed without water entering into existing roofing system or building.
1. Store all materials prior to application at temperatures between 60 and 90 deg. F.
2. Apply coatings within range of ambient and substrate temperatures recommended by manufacturer.
Do not apply materials when air temperature is below 50 or above 110 deg. F.
3. Do not apply roofing in snow, rain, fog, or mist.
B. Protect building to be restored, adjacent buildings, walkways, site improvements, exterior plantings, and
landscaping from damage or soiling from restoration operations.
C. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities.
D. Daily Protection: Coordinate installation of roofing so insulation and other components of roofing system
not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or
when rain is forecast.
E. Owner will occupy portions of building immediately below re-coating area. Conduct work so Owner's
operations will not be disrupted. Provide Owner with not less than 72 hours' notice of activities that may
affect Owner's operations.
1.11 WARRANTY
A. Special Warranty for Roof Restoration: Written warranty in which Manufacturer agrees to repair roof
restoration installations that fail in materials or workmanship within specified warranty period.
1. Failures include, but are not limited to, the following:
a. Membrane failures including rupturing, cracking, or puncturing.
b. Deterioration of membranes, coatings, metals, metal finishes, and other associated materials
beyond normal weathering.
c. Failure to resist water entry through restored roof membrane, flashings, sheet metal
counterflashing and penetration flashing.
2. Qualified Installer Requirement: Installer must meet requirements of Quality Assurance section.
3. Manufacturer Inspection and Preventive Maintenance Requirement: By manufacturer's technical
representative, to preform general housekeeping and preventative maintenance and report activities
and roof condition to Owner. The cost of manufacturer's annual inspections and preventive
maintenance is included in the Contract Sum. Inspections to occur in Years 2 and 5 following
completion.
4. Warranty Period: 10 years from date of Substantial Completion.
B. Installer's Warranty: Submit roofing Installer's warranty, signed by Installer, covering the Work of this
Section, for the following warranty period:
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
1. Warranty Period: Two years from date of Substantial Completion.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Basis-of-Design Manufacturer: Tremco, Inc., 800-562-2728, www.tremcoroofing.com.
2.2 MATERIALS, GENERAL
A. General: Re-coating materials recommended by roofing system manufacturer for intended use and
compatible with components of existing membrane roofing system.
B. Temporary Roofing Materials: Selection of materials and design of temporary roofing is responsibility of
Contractor.
C. Infill Materials: Where required to replace test cores and to patch existing roofing, use infill materials
matching existing membrane roofing system materials, unless otherwise indicated by specifications and
drawings.
2.3 RESTORATIVE COATINGS
A. Restoration Coating, Low-VOC: Water-based, low-VOC, cold-applied restorative top pour and aggregate
adhesive specially formulated for compatibility with asphalt and coal tar roofing membranes and flashings.
1. Product: ECOLastic.
2. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 29 g/L
3. Asbestos Content, ASTM D 276: None.
B. Reflective Aluminum Coating: Non-fibered, phenolic-resin based reflective aluminum pigmented roof
coating applicable for use over emulsion coatings.
1. Product: Alumanation 301.
2. Solids by Weight, ASTM D 562: 61 percent, +/- 1 percent.
3. Metallic Aluminum Content, minimum, ASTM D 2824: 15 percent.
4. Reflectance, minimum, ASTM D 903: 60 percent.
C. Bio-Based Polyurethane Roof Coating - Base Coat: ASTM D7311, Two-part catalyzed low-odor
polyurethane roof base coating formulated for direct application and for use with fiber reinforcement in
conjunction with a compatible top coat.
1. Product: AlphaGuard BIO Base Coat.
2. Volatile Organic Compounds (VOC), maximum, ASTM D3960: 1 g/L.
3. Combustion Characteristics, UL 790: Class A.
4. Bio-Based Content: Not less than 20 percent.
5. Percent solids, by volume, ASTM D 2697: 100.
6. Percent solids, by weight, ASTM D 1644: 100.
D. Bio-Based Polyurethane Roof Coating -Top Coat: ASTM D7311, Two-part catalyzed low-odor
polyurethane roof top coating formulated for direct application over compatible reinforced base coat.
1. Product: AlphaGuard BIO Top Coat.
2. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 6 g/L.
3. Combustion Characteristics, UL 790: Class A.
4. Bio-Based Content: Not less than 20 percent.
5. Percent solids, by volume, ASTM D 2697: 100.
6. Percent solids, by weight, ASTM D 1644: 100.
7. Water Vapor Transmission, ASTM E 96, Wet Cup: 0.020 perm-in (1.32 g/sq m/day).
E. Polyurethane Roof Mastic: Medium single component, high solids, moisture curing, aromatic polyurethane
mastic compatible with specified membrane or coating material and reinforcing fabric, in heavy brush or
trowel grade formulation.
1. Product: AlphaGuard Mastic.
2. Asbestos Content, EPA/600/R-93/116: None.
3. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 75 g/L.
4. Nonvolatile Content, minimum, ASTM D 1644: 80 percent.
5. Tensile Strength at 77 deg. F (25 deg. C), minimum, ASTM D 6083: 270 psi.
6. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 6083: 2200 percent
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
2.4 FLASHING MATERIALS
A. Elastomeric Base Flashing Sheet: Elastomeric, polyester-reinforced sheet with EPDM and SBR thermoset
elastomers.
1. Product: TRA Elastomeric Sheeting.
2. Breaking Strength, minimum, ASTM D 751: machine direction 350 lbf(1550 N); cross machine
direction 300 lbf(1330 N).
3. Tear Strength, minimum, ASTM D 751: machine direction 77 Ibf(342 N); cross machine direction 77
lbf(342 N).
4. Elongation at Failure: ASTM D 751: 30 percent minimum.
5. Low Temperature Flexibility, minimum, ASTM D 2136: -40 deg. F (-50 deg. C).
6. Thickness, minimum, ASTM D 751: 0.045 inch (1.1 mm).
7. Color: Black.
2.5 PRIMERS
A. Asphalt Primer, Low-Odor: Low-odor, solvent-based asphalt primer.
1. Product: TREMprime QD LOW Odor.
2. Asbestos Content, ASTM D 276: None.
3. Flash Point, minimum, ASTM D 3278: 100 deg. F (38 deg. C).
B. Urethane Primer for Metal: Water-based, quick-drying, brush-grade one-part primer for use as an adhesion
promoter for urethane sealangs and coatings to non-porous surfaces.
1. Product: AlphaGuard M-Prime.
2. Volatile Organic Compounds (VOC), maximum, ASTM D3960: 22 g/L.
3. Nonvolatile Content, minimum, ASTM D1644: 5 percent.
C. Urethane Reactivation Primer: Reactivation primer for use with cured polyurethane coatings prior to
application of additional coat.
1. Owner supplied product: Tremco, Geogard Primer.
D. Urethane Base Primer: Reactivation primer for use with cured polyurethane coatings prior to application of
additional coat.
1. Owner supplied product: Tremco, Geogard Primer.
2.6 ADHESIVES
A. Cold-Applied, Inerply Adhesive: One-part, low-volatile, cold-applied adhesive specially formulated for
compatibility and use with specified roofing membranes and flashings.
1. Product: BURmastic Adhesive LV.
2. Volatile Organic Compounds (VOC), maximum, ASTM D 6511: <250 g/L.
3. Nonvolatile Content, minimum, ASTM D 6511: 75 percent.
4. Flash Point, minimum, ASTM D 93: 100 deg. F (38 deg. C).
B. Flashing Adhesive: One-part, trowel-grade, elastomeric roof mastic specially formulated for compatibility
and use with specified roofing membranes and flashings.
1. Product: POLYroof LV.
2. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 300 g/L.
3. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 412: 1000 percent.
4. Recovery from 500 percent Elongation, minimum, ASTM D 412: 500 percent.
5. Flexibility at-40 deg. F (-40 deg. C), ASTM D 3111: No cracking.
2.7 SHEET GOODS
A. Polyester Reinforcing Fabric for Urethane Coating: 100 percent stitch-bonded mildew-resistant polyester
fabric intended for reinforcement of compatible fluid-applied membranes and flashings.
1. Product:, Permafab.
2. Tensile Strength, ASTM D 1682: Not less than 50 lbf. (222 N).
3. Elongation, ASTM D 1682: Not less than 60 percent.
4. Tear Strength, ASTM D 1117: Not less than 16 lbf. (70 N).
5. Weight: 3 oz. /sq. yd. (102 g/sq. m).
B. Base Sheet/ Roofing Ply Sheet: ASTM D4601, Type II, nonperforated, SBS modified, asphalt-coated,
fiberglass/fiberglass/polyester reinforced sheet dusted with fine mineral surfacing on both sides.
1. Product: BURmastic Modified Composite Ply HT.
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
2. Tensile Strength, minimum,ASTM D 5147: machine direction, 165 Ibf/in (28.9 kN/m); cross machine
direction, 150 Ibf/in (26.3 kN/m).
3. Tear Strength, minimum, ASTM D 5147: machine direction, 210 Ibf(0.9 kN); cross machine direction,
185 Ibf(0.8 kN).
4. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 5147: machine direction, 6 percent; cross
machine direction, 6 percent.
5. Thickness, minimum, ASTM D 146: 0.055 inch (1.4 mm).
6. Weight, minimum, ASTM D 228: 35 lb/100 sq. ft. (1.7 kg/sq. m.).
2.8 MASTICS
A. Roofing Mastic, Asphalt: ASTM D 4586, Type II, Class 1, one-part, cold-applied mastic specially formulated
for compatibility and use with specified roofing membranes and flashings.
1. Owner Supplied Product: Tremco, ELS.
2. Volatile Organic Compounds (VOC), maximum, ASTM D 6511: 234 g/L.
3. Resistance to Sag, maximum, ASTM D 4586: 1/8 inch (3.1 mm).
4. Moisture Vapor Transmission, ASTM E 398: 0.25 g/100 sq. in. /24 hr at 0.020 in. thickness, average.
B. Modified Roof Mastic for Flashing Seam Renforcement: One-part, trowel-grade, elastomeric roof mastic
specially formulated for compatibility and use with specified roofing membranes and flashings.
1. Product: POLYroof LV.
2. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 300 g/L.
3. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 412: 1000 percent.
4. Recovery from 500 percent Elongation, minimum, ASTM D 412: 500 percent.
5. Flexibility at-40 deg. F (-40 deg. C), ASTM D 3111: No cracking.
C. Polyurethane Roof Mastic: Medium single component, high solids, moisture curing, aromatic polyurethane
mastic compatible with specified membrane or coating material and reinforcing fabric, in heavy brush or
trowel grade formulation.
1. Product: AlphaGuard Mastic.
2. Asbestos Content, EPA/600/R-93/116: None.
3. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 75 g/L.
4. Nonvolatile Content, minimum, ASTM D 1644: 80 percent.
5. Tensile Strength at 77 deg. F (25 deg. C), minimum, ASTM D 6083: 270 psi.
6. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 6083: 2200 percent.
2.9 AUXILIARY MATERIALS
A. General: Auxiliary materials recommended by roofing system manufacturer for intended use and
compatible with existing roofing system.
B. Mastic Sealant: Polyisobutylene, plain or modified bitumen, nonhardening, nonmigrating, nonskinning, and
nondrying.
C. Metal Flashing Sheet: Provide metal flashing sheet matching type, thickness, finish, and profile of existing
metal flashing and trim.
D. Stone Aggregate Surfacing: ASTM D 1863, 1/4 inch, No. 10, clean, dry, opaque, crushed stone, free of
sharp edges.
E. Miscellaneous Accessories: Provide miscellaneous accessories recommended by roofing system
manufacturer.
2.10 WALKWAYS
A. Walk Pads:
1. White granule surfaced, fiberglass reinforced asphaltic walk pad.
2. Thickness: 1/2 inch.
3. Size: 3 by 4 feet.
PART 3 - EXECUTION
3.1 SCOPE OF WORK
A. Provide all required permits, labor and materials to complete the following work:
1. Remove gravel surfacing for roof surface via vacuum and sweep membrane clean of dirt and debris.
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
2. Completely spud gravel for membrane surface for 12 inches out from edge of all base flashing and
vent bases.
3. Remove existing skirt flashing and dis-attach perimeter metal flashing elements as required to expose
base flashing sheet for seam reinforcement and recoating with reflective aluminum.
4. Remove abandoned conduit lines from southwest section of roof Area 9.
5. Replace wood nailers and drip edge on upper gym roof.
a. Remove existing metal drip edge.
b. Cut membrane back 12 inches from back edge of existing wood nailers.
c. Remove existing nailers and replace with new pressure treated 2 by 6 nailers.
d. Replace existing 1/2 inch cover board with tapered edge strip to transition between surface of
e. Completely remove gravel surface from existing membrane for 24 inches back from new nailers
and prime with asphalt primer at rate of 1 gal/100 sq.ft.
f. Install three new plies of roofing felt set in cold adhesive over nailers and new tapered strip.
Extend bottom ply 8 inches beyond back edge of nailers. Extend middle ply 12 inches beyond
back edge of nailers, and extend top ply 18 inches beyond back edge of nailers.
g. Seal edge of plies to old roof with 5 course striping detail (Mastic; 4 inch reinforcing scrim; Mastic;
6 inch reinforcing scrim; Mastic), and tool to smooth finish.
h. Install new 24 ga metal drip edge metal on continuous cleat at face, set in full bed of mastic.
i. Seal new drip edge to new plies with 9 inch strip of base flashing sheeting set in flashing
adhesive.
j. Seal back edge of flashing sheet to roof with three course of modified mastic and 4 inch
reinforcement mesh.
6. Remove abandoned curbs and equipment as indicated on Drawings.
a. Cut membrane back 6 inches from back edge of abandoned sleepers and curbs.
b. Completely remove gravel surface from existing membrane for 24 inches from cut edge and
prime with asphalt primer at rate of 1 gal/100 sq.ft.
c. Remove abandoned equipment as indicated on Drawings.
d. Replace existing insulation and 1/2 inch cover board. Size insulation to flush up to top surface of
surrounding roof or slightly higher.
e. Install three new plies of roofing felt set in cold adhesive over insulation. At start and stop, extend
bottom ply 6 inches beyond edge of void. Extend middle ply 12 inches beyond edge of void, and
extend top ply 18 inches beyond edge of void. At sides extend plies 18 inches beyond edge of
void onto cleaned and primed existing roof membrane.
f. Seal edge of plies to old roof with 5 course striping detail (Mastic; 4 inch reinforcing scrim; Mastic;
6 inch reinforcing scrim; Mastic), and tool to smooth finish.
7. Install curbs for new skylights as indicated on Drawings.
a. Cut membrane back 6 inches from edge of new curbs.
b. Completely remove gravel surface from existing membrane for 24 inches back cut edge and
prime with asphalt primer at rate of 1 gal/100 sq.ft.
c. Install new curbs as indicated on Drawings.
d. Replace insulation and 1/2 inch cover board around curb. Size insulation to flush up to top
surface of surrounding roof or slightly higher.
e. Install three new plies of roofing felt set in cold adhesive to roof in new curb. Extend bottom ply 6
inches on to existing roof membrane. Extend subsequent plies 6 inches further onto existing roof
membrane.
f. Install Elastomeric base flashing sheet set in flashing adhesive and seal to new plies with 3
course striping detail.
g. Seal edge of plies to old roof with 5 course striping detail (Mastic; 4 inch reinforcing scrim; Mastic;
6 inch reinforcing scrim; Mastic), and tool to smooth finish.
8. Replace surface set sleeper curbs under condenser units on Area 14, with new wood curbs mounted
to structural deck.
a. Lift condenser units in place or remove and store for reinstallation.
b. Cut and remove roofing and insulation to deck in areas where new curb will qo.
c. Install new curb for equipment.
d. Completely remove gravel surface from existing membrane for 24 inches surrounding area to be
in-filled and prime with asphalt primer at rate of 1 gal/100 sq.ft.
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
e. Infill insulation in void between new curb and existing roof, with 1/2 inch coated wood fiber over
Isocyanurate to match surface height of existing roof membrane or slightly higher.
f. Install new adhered cant strip at curb.
g. Install three new plies of roofing felt set in cold adhesive over insulation. At start and stop, extend
bottom ply 6 inches beyond edge of void. Extend middle ply 12 inches beyond edge of void, and
extend top ply 18 inches beyond edge of void. At sides extend plies 18 inches beyond edge of
void onto cleaned and primed existing roof membrane.
h. Install Elastomeric base flashing sheet set in flashing adhesive and seal to new plies with 3
course striping detail.
i. Seal edge of plies to old roof with 5 course striping detail (Mastic; 4 inch reinforcing scrim; Mastic;
6 inch reinforcing scrim; Mastic), and tool to smooth finish.
9. Modify wall intake vent on Area 6, where wet insulation was found, as indicated on Drawings.
10. Walk roof with Owner and Manufacturer and inspect the membrane, flashings and penetrations for
defects and damage, mark areas noted for repair during restoration work.
11. Replace three areas of wet insulation detected by noninvasive moisture scan, as indicated on
Drawings.
a. Cut areas of wet insulation form roof area and dispose of.
b. Clean deck and straighten sides of hole in roof and insulation.
c. Completely remove gravel surface from existing membrane for 24 inches surrounding area to be
in-filled and prime with asphalt primer at rate of 1 gal/100 sq.ft.
d. Infill insulation in void with 1/2 inch coated wood fiber over Isocyanurate to match surface height
of existing roof membrane or slightly higher.
e. Install three new plies of roofing felt set in cold adhesive over insulation. At start and stop, extend
bottom ply 8 inches beyond edge of void. Extend middle ply 12 inches beyond edge of void, and
extend top ply 18 inches beyond edge of void. At sides extend plies 18 inches beyond edge of
void onto cleaned and primed existing roof membrane.
f. Seal edge of plies to old roof with 5 course striping detail (Mastic; 4 inch reinforcing scrim; Mastic;
6 inch reinforcing scrim; Mastic), and tool to smooth finish.
12. Replace membrane and insulation in the two Hypalon membrane areas at toe-end of metal roof
panels.
a. Remove coping metal and metal counterflashing at bottom of metal panels.
b. Cut existing hypalon 10 inches from bottom of metal and fold up to expose insulation.
c. Remove insulation and cover boards to deck.
d. Clean and inspect decking and notify owner of deteriorated decking.
e. Install new mechanically attached roof insulation and adhere 1/4 inch DensDeck roof board to
match height of existing insulation system.
f. Adhere new 45 mil Hypalon membrane.
g. Fold down cut flap over new membrane and heat weld in place.
h. Reinstall drain hardware.
i. Replace coping metal and reinstall counterflashing.
13. Rebuild drains and sumps.
a. Remove existing drain lead.
b. Completely remove gravel form membrane for 18 inches surrounding cut in membrane.
c. Prime spudded roof membrane at base of base flashing with Tremprime QD at 1 gal per 100 sq.
ft. Allow to dry completely.
d. Inspect drain bowl for deterioration and replace as directed by Owner.
e. Install new 4 lb lead sheet in drain.
f. Replace existing drain strainer with larger strainer basket that sets on top of drain ring. Replace
drain ring if required.
14. Coat out drain sumps with AlphaGuard BIO system.
a. Remove drain hardware and save for re-installation.
b. Clean and prepare inside of drain bowl.
1) Remove any loose or un-adhered material.
2) Cut back plies and drain lead to inside rim of drain bowl.
c. Prime interior of drain bowl with M-Prime.
d. Prime roof membrane with AlphaGuard primer and allow to dry completely.
e. Apply base coat at 3.5 gal per 100 sq. ft. to drain sump and down into bowl of drain.
f. Apply Polyester reinforcement into wet coating. Back brush to ensure complete embedment.
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
g. Allow base coat to cure and inspect.
1) Cut out and re-install any reinforcement mat that is not fully embedded in the base coat.
2) Inspect area for pin holes or exposed glass mat. Trowel apply thin layer of urethane sealant
at any pin holes or defects.
h. Apply top coat to prepared base Coat area at 2 gal per 100 sq. ft.
15. Re-adhere any base flashing that is ballooning at parapet walls, with base flashing adhesive.
16. Re seal all seams in the base flashing with 3 course of modified mastic and 4 inch wide reinforcing
mesh. Tool to smooth finish.
17. Prime spudded roof membrane at base of base flashing with asphaltic primer at 1 gal per 100 sq. ft.
Allow to dry completely.
18. Reseal existing base flashing to primed roof surface with 3 course of mastic and 4 inch wide
reinforcing mesh.
19. Refill pitch pans with modified mastic and install new S.S. bonnet.
20. Inspect Lead soil stack flashings. Replace any torn or damaged leads with new 4 lb lead jacks.
21. Walk prepared roof with Owner's representative and Manufacture's representative to inspect repair
and replacement work prior to application of surfacing adhesives. Repair all noted deficiencies prior to
proceeding with surfacing.
22. Apply new 1/4 inch, No. 10 washed roofing aggregate at 300 lbs per 100 sq. ft. adhered in cold
surfacing adhesive at 7 gal per 100 sq. ft.
23. Recoat base flashing with reflective aluminum at 2 gal per 100 sq. ft.
24. Coat drop vents and soil stacks with reflective aluminum at 2 gal per 100 sq. ft.
25. Install new metal counter flashing under existing coping/wall metals where removed.
26. Reattach all existing metal flashing and counter flashing that was dis-attached for specified work.
27. Replace roof access hatch with similar unit onto existing curb.
28. Install walk pads in spot attachment of mastic, at all HVAC service panels and at all roof hatches and
ladder/stair landings.
29. Install walk pads in spot attachment of mastic to form walk paths per project drawings.
3.2 GENERAL PREPARATION
A. Protect existing roofing system that is indicated not to be restored, and adjacent portions of building and
building equipment.
1. Mask surfaces to be protected. Seal joints subject to infiltration by coating materials.
2. Limit traffic and material storage to areas of existing roofing membrane that have been protected.
3. Maintain temporary protection and leave in place until replacement roofing has been completed.
B. Shut down air intake equipment in the vicinity of the Work in coordination with the Owner. Cover air intake
louvers before proceeding with re-coating work that could affect indoor air quality or activate smoke
detectors in the ductwork.
1. Verify that rooftop utilities and service piping affected by the Work have been shut off before
commencing Work.
C. Maintain roof drains in functioning condition to ensure roof drainage at end of each workday. Prevent debris
from entering or blocking roof drains and conductors. Use roof-drain plugs specifically designed for this
purpose. Remove roof-drain plugs at end of each workday, when no work is taking place, or when rain is
forecast.
1. Do not permit water to enter into or under existing membrane roofing system components that are to
remain.
3.3 SURFACE PREPARATION
A. Existing Flashing and Detail Preparation: Repair flashings, gravel stops, copings, and other roof-related
sheet metal and trim elements. Reseal joints, replace loose or missing fasteners, and replace components
where required to leave in a watertight condition.
1. Do not damage metal counterflashings that are to remain. Replace metal counterflashings damaged
during removal with counterflashings of same metal, weight or thickness, and finish.
2. Roof Drains: Remove drain strainer and clamping ring. Grind metal surfaces down to clean, bare,
metal.
B. Membrane Surface Preparation:
1. Remove loose aggregate from aggregate-surfaced built-up bituminous roofing with vacuum system.
2. Remove blisters, ridges, buckles, and other substrate irregularities from existing roofing membrane
that would inhibit application of uniform, waterproof coating.
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
3. Repair membrane at locations where irregularities have been removed.
4. Broom clean existing substrate.
5. Verify adhesion of new products.
6. Completely remove aggregate ballast from existing membrane at all base flashings, penetration
flashing and were all ties-ins to existing membrane are to be made.
C. Surface Priming: Prime surfaces to receive fluid-applied coating using coating manufacturer's
recommended product for surface material. Apply at application rate recommended by manufacturer.
1. Ensure primer does not puddle and substrate has complete coverage.
2. Allow to cure completely prior to application of coating.
3.4 REPLACEMENT FLASHING AND STRIPPING INSTALLATION
A. Install replacement base flashing at locations shown on drawings, and secure to substrates according to
roofing system manufacturer's written instructions and as follows:
1. Prime substrates with asphalt primer if required by roofing system manufacturer.
2. Flashing Sheet Application: Adhere flashing sheet to substrate in cold adhesive applied at rate
recommended by roofing system manufacturer.
3. Extend base flashing up walls or parapets a minimum of 200 mm (8 inches) above roofing membrane
and 150 mm (6 inches) onto field of roofing membrane.
4. Mechanically fasten top of base flashing securely at terminations and perimeter of roofing.
5. Seal new flashing to prepared existing roof membrane surface with three course of mastic and
reinforcing mesh.
3.5 ROOF COATING APPLICATION
A. Restorative Flood Coat: Promptly after preparing membrane substrate and base flashings and stripping,
flood-coat roof surface with 7 gal./100 sq. ft. of restorative coating.
B. Reflective Coating on Base Flashing: Apply reflective aluminum coat according to manufacturer's written
instructions, by spray, roller, or other suitable application method to all base flashing. Apply in 1 coat
application at 1 gal./100 sq. ft. per coat.
C. Aggregate Surfacing: While flood coat is fluid, cast the following average weight of aggregate in a uniform
course:
1. Aggregate Weight: 300 lb/100 sq. ft.
2. Broom finished application of gravel to a smooth uniform surface.
3.6 WALKWAY INSTALLATION
A. Install walkways following application of coating. Locate as indicated, or as directed by Owner.
B. Walkway Pads: Install walkway pads at all roof hatch and ladder/stair landings and at all HVAC service and
access panels.
1. Set walkway pads in 5 spot application of mastic over finished gravel surface.
3.7 FIELD QUALITY CONTROL
A. Roofing Inspector: Owner will engage a qualified roofing inspector to perform roof tests and periodic
inspections of work in progress, and to prepare test and progress reports.
B. Roof Inspection: Contractor shall engage roofing system manufacturer's technical personnel to inspect
roofing installation, and submit report to Owner. Notify Owner 48 hours in advance of dates and times of
inspections. Inspect work as follows:
1. At beginning of aggregate surface removal.
2. After removal of existing aggregate surface, prior to application of repairs or restoration coating
materials.
3. Following application of re-coating to flashings and installation of all repairs and upgrades.
4. Upon completion of restoration coating and new aggregate.
C. Repair membrane where test inspections indicate that they do not comply with specified requirements.
D. Arrange for additional inspections, at Contractor's expense, to verify compliance of replaced or additional
work with specified requirements.
3.8 PROTECTING AND CLEANING
A. Protect roofing system from damage and wear during remainder of construction period.
,
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RESTORATION OF AGGREGATE SURFACED BUILT-UP ROOFING
B. Correct deficiencies in or remove coating that does not comply with requirements, repair substrates, and
reapply coating.
C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures
recommended by manufacturer of affected construction.
END OF SECTION
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BUILT-UP ASPHALT ROOFING, HOT-APPLIED
PROJECT NOTE: Use of hot asphalt will be allowed, at contractor's discretion, up to the date of August 18.
All hot equipment shall be removed from the job site as of Monday August 21.
PART 1 -GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and
Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Hot-applied built-up asphalt roofing system on metal and cementitious fiber wood deck, including but
not limited to:
a. Roof insulation.
b. Roof membrane and membrane base flashings.
c. Roof surfacing consisting of adhesive surfacer with aggregate surfacing.
B. Related Sections:
1. Division 07 Section "Preparation for Re-Roofing"for existing roofing tearoff, patching, and substrate
preparation for reroofing.
2. Division 07 Section "Sheet Metal Flashing and Trim"for custom metal roof penetration flashings,
flashings, and counterflashings.
3. Division 07 Section "Roof Specialties"for manufactured copings, roof edge flashings, roof edge
drainage systems, counterflashings, and reglets.
C. Alternates: Refer to Division 01 Section "Alternates"for description of Work in this Section affected by
alternates.
D. Allowances: Refer to Division 01 Section "Allowances"for description of Work in this Section affected by
allowances.
E. Unit Prices: Refer to Division 01 Section "Unit Prices"for description of Work in this Section affected by unit
prices.
1.3 DEFINITIONS
A. Roofing Terminology: See ASTM D 1079 and glossary of NRCA's "The NRCA Roofing and Waterproofing
Manual"for definition of terms related to built-up roofing.
B. Hot Roofing Asphalt: Roofing asphalt heated to its equiviscous temperature, the temperature at which its
viscosity is 125 centipoise for mop-applied roofing asphalt and 75 centipoise for mechanical spreader-
applied roofing asphalt, within a range of plus or minus 25 deg F (14 deg C), measured at the mop cart or
mechanical spreader immediately before application.
1.4 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
B. Shop Drawings: For roofing system. Include plans, elevations, sections, details, and attachments to other
work. Provide roof plan showing orientation and types of roof deck, orientation of membrane roofing, and
fastening spacings and patterns for mechanically fastened components.
1. Base flashings and built-up terminations.
a. Indicate details meet requirements of NRCA and FMG required by this Section.
2. Tapered insulation, including slopes.
3. Crickets, saddles, and tapered edge strips, including slopes.
4. Insulation fastening patterns for corner, perimeter, and field-of-roof locations.
C. Samples for Verification: For the following products:
1. Sheet roofing materials, of color specified for exposed material.
2. Roof insulation.
3. 1 lb. of aggregate surfacing material in gradation and color indicated.
4. Walkway material.
5. Six insulation fasteners of each type, length, and finish.
l t
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BUILT-UP ASPHALT ROOFING, HOT-APPLIED
1.5 INFORMATIONAL SUBMITTALS
A. Qualification Data: For Installer, Manufacturer, and Roofing Inspector. Include letter from Manufacturer
written for this Project indicating approval.
1. Include letter from Manufacturer written for this Project indicating approval of Installer.
B. Contractor's Product Certificate: Submit notarized certificate, indicating products intended for Work of this
Section, including product names and numbers and manufacturers' names, with statement indicating that
products to be provided meet the requirements of the Contract Documents.
C. Product Test Reports: Based on evaluation of comprehensive tests performed by manufacturer and
witnessed by a qualified testing agency, for components of built-up roofing.
D. Warranties: Unexecuted sample copies of special warranties.
E. Field Quality Reports: Daily reports of Roofing Inspector. Include weather conditions, description of work
performed, tests performed, defective work observed, and corrective actions taken to correct defective
work.
1.6 CLOSEOUT SUBMITTALS
A. Maintenance Data: To include in maintenance manuals.
B. Warranties: Executed copies of warranties.
1.7 QUALITY ASSURANCE
A. Installer Qualifications: An employer of workers trained and certified by manufacturer, including a full-time
on-site supervisor with a minimum of five years' experience installing similar work, able to communicate
verbally with Contractor, Architect, and employees, and qualified by the manufacturer to furnish warranty of
type specified.
B. Manufacturer Qualifications: Approved manufacturer with UL listed roofing systems comparable to those
specified for this Project, with minimum five years' experience in manufacture of comparable products in
successful use in similar applications, and able to furnish warranty with provisions matching specified
requirements.
C. Roofing Inspector Qualifications: A technical representative of manufacturer not engaged in the sale of
products and experienced in the installation and maintenance of the specified roofing system, qualified to
perform roofing observation and inspection specified in Field Quality Control Article, to determine Installer's
compliance with the requirements of this Project, and approved by the manufacturer to issue warranty
certification. The Roofing Inspector shall be one of the following:
1. An authorized full-time technical employee of the manufacturer.
D. Manufacturer's Installation Instructions: Obtain and maintain on-site manufacturer's written
recommendations and instructions for installation of products.
E. Preinstallation Roofing Conference: Conduct conference at Project site.
1. Meet with Owner, Architect, Owner's insurer if applicable, testing and inspecting agency
representative, roofing Installer, roofing manufacturer's representative, and installers whose work
interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.
2. Review drawings and specifications.
3. Review methods and procedures related to roofing installation, including manufacturer's written
instructions.
4. Review and finalize construction schedule and verify availability of materials, Installer's personnel,
equipment, and facilities needed to make progress and avoid delays.
5. Examine substrate conditions and finishes for compliance with requirements, including flatness and
fastening.
6. Review structural loading limitations of roof deck during and after roofing.
7. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and
condition of other construction that will affect roofing.
8. Review governing regulations and requirements for insurance and certificates if applicable.
9. Review temporary protection requirements for roofing during and after installation.
10. Review roof observation and repair procedures after roofing installation.
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1.8 DELIVERY, STORAGE, AND HANDLING
A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with
manufacturer's name, product brand name and type, date of manufacture, approval or listing agency
markings, and directions for storing and mixing with other components.
B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within
the temperature range required by roofing manufacturer. Protect stored liquid material from direct sunlight.
1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.
C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling,
and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for
handling, storing, and protecting during installation.
D. Handle and store roofing materials and place equipment in a manner to avoid permanent deflection of
deck.
1.9 PROJECT CONDITIONS
A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit
roofing to be installed according to manufacturer's written instructions and warranty requirements.
B. Daily Protection: Coordinate installation of roofing so insulation and other components of roofing system
not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or
when rain is forecast.
1. Provide tie-offs at end of each day's work to cover exposed roofing and insulation with a course of
roofing sheet securely in place with joints and edges sealed.
2. Complete terminations and base flashings and provide temporary seals to prevent water from entering
completed sections of roofing.
3. Remove temporary plugs from roof drains at end of each day.
4. Remove and discard temporary seals before beginning work on adjoining roofing.
1.10 WARRANTY
A. Warranty, General: Warranties specified shall be in addition to, and run concurrent with, other warranties
required by the Contract Documents. Manufacturer's disclaimers and limitations on product warranties do
not relieve Contractor of obligations under requirements of the Contract Documents.
B. Manufacturer's Warranty: Manufacturer's standard or customized form in which manufacturer agrees to
repair or replace components of built-up roofing that fail in materials or workmanship within specified
warranty period. Failure includes roof leaks.
1. Manufacturer's warranty includes roofing membrane, base flashings, fasteners, roofing membrane
accessories and other components of roofing system specified in this Section.
2. Warranty Period: 20 years from date of Substantial Completion.
C. Installer's Warranty: Submit roofing Installer's warranty, on warranty form at end of this Section, signed by
Installer, covering the Work of this Section and related Sections indicated above, including all components
of built-up roofing such as built-up roofing membrane, base flashing, roof insulation, fasteners, cover
boards, substrate boards, vapor retarders, roof pavers, and walkway products, for the following warranty
period:
1. Warranty Period: Two years from date of Substantial Completion.
D. Extended Roof System Warranty: Warranties specified in this Section include the following components
and systems specified in other sections supplied by the roofing system Manufacturer, and installed by the
roofing system Installer:
1. Sheet metal flashing and trim, including roof penetration flashings.
2. Manufactured copings, roof edge, counterflashings, and reglets.
3. Roof curbs, hatches, and penetration flashings.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Basis-of-Design Manufacturer/Product: The roof system specified in this Section is based upon products of
Tremco, Inc., Beachwood, OH, (800) 562-2728, www.tremcoroofing.com, that are products named in other
Part 2 articles. Provide specified products.
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B. Source Limitations: Obtain components for roofing system from same manufacturer as membrane roofing
or manufacturer approved by membrane roofing manufacturer.
2.2 PERFORMANCE REQUIREMENTS
A. General Performance: Roofing shall withstand exposure to weather without failure or leaks due to defective
manufacture or installation.
1. Accelerated Weathering: Roofing system shall withstand 2000 hours of exposure when tested
according to ASTM G 152, ASTM G 154, or ASTM G 155.
2. Impact Resistance: Roofing system shall resist impact damage when tested according to ASTM D
3746 or ASTM D 4272.
B. Material Compatibility: Provide roofing materials that are compatible with one another under conditions of
service and application required, as demonstrated by built-up roofing manufacturer based on testing and
field experience.
C. Roofing System Design: Provide roofing system that is identical to systems that have been successfully
tested by a qualified testing and inspecting agency in accordance with ANSI/FM 4474, UL 580, or UL 1897,
and to resist uplift pressures.
1. Zone 1 (Field-of-Roof) Uplift Pressure: 30 lbf/sq. ft.
2. Zone 2 (Perimeter) Uplift Pressure: 50 lbf/sq. ft., located within 8 feet(m) of roof perimeter.
3. Zone 3 (Corners) Uplift Pressure: 75 lbf/sq. ft., located within 8 feet(m) of roof outside corner.
D. SPRI Wind Design Standard: Manufacture and install copings tested according to SPRI ES-1 and capable
of resisting the following design pressures:
1. Design Pressure: As indicated on Drawings.
2. Design Pressure: 40 lbf/sq. ft.
E. Flashings and Fastening: Comply with requirements of Division 07 Sections"Sheet Metal Flashing and
Trim"and "Roof Specialties." Provide base flashings, perimeter flashings, detail flashings and component
materials and installation techniques that comply with requirements and recommendations of the following:
1. NRCA Roofing Manual (Sixth Edition)for construction details and recommendations.
2. SMACNA Architectural Sheet Metal Manual (Seventh Edition)for construction details.
F. Exterior Fire-Test Exposure: ASTM E 108, Class A; for application and roof slopes indicated, as
determined by testing identical membrane roofing materials by a qualified testing agency. Materials shall be
identified with appropriate markings of applicable testing agency.
2.3 BASE-SHEET MATERIALS
A. Sheathing Paper: Red-rosin type, minimum 3 lb./100 sq. ft. (0.16 kg/sq. m).
2.4 ROOFING MEMBRANE PLY SHEETS
A. ASTM D 2178 Type VI premium asphalt-impregnated glass-fiber ply sheet.
1. Basis of design product: Tremco, THERMglass Premium Type VI.
2. Net Dry Mass, ASTM D 146: 8 lb/100 sq. ft. (390 g/sq. m).
3. Breaking Strength, minimum, ASTM D 146: Machine direction, 70 lbf/in (12 kN/m); cross machine
direction, 60 lbf/in (10 kN/m).
B. ASTM D 5726 Type I asphalt roofing ply sheet, high-strength non-woven heat-resistant polyester.
1. Basis of design product: Tremco, PoIyTHERM.
2. Breaking Load at 77 deg. F (25 deg. C), minimum, ASTM D 4830: Machine direction, 150 lbf(667 N);
cross-Machine direction, 130 lbf(578 N).
3. Trapezoid Tearing Strength, minimum, ASTM D 4830: Machine direction, 60 lbf(267 N); cross-
Machine direction, 60 lbf(267 N).
4. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 4830: Machine direction, 30 percent; cross-
Machine direction, 30 percent.
5. Thickness, minimum, ASTM D 1777: 0.035 inch (0.9 mm).
2.5 BASE FLASHING SHEETS
A. Base Flashing Backer Sheet:
1. ASTM D 5726 Type I asphalt roofing ply sheet, high-strength non-woven heat-resistant polyester.
a. Basis of design product: Tremco, PoIyTHERM.
b. Breaking Load at 77 deg. F (25 deg. C), minimum, ASTM D 4830: Machine direction, 150 lbf(667
N); cross-Machine direction, 130 lbf(578 N).
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c. Trapezoid Tearing Strength, minimum, ASTM D 4830: Machine direction, 60 lbf(267 N); cross-
Machine direction, 60 lbf(267 N).
d. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 4830: Machine direction, 30 percent;
cross-Machine direction, 30 percent.
e. Thickness, minimum, ASTM D 1777: 0.035 inch (0.9 mm).
B. Base Flashing Sheet:
1. Thermoset elastomeric flashing sheet, polyester-reinforcedwith EPDM and SBR elastomers.
a. Basis of design product: Tremco, TRA Elastomeric Sheeting.
b. Breaking Strength, minimum, ASTM D 751: Machine direction 350 lbf(1550 N); Cross machine
direction 300 lbf(1330 N).
c. Tear Strength, minimum, ASTM D 751: Machine direction 77 lbf(342 N); Cross machine direction
77 lbf(342 N).
d. Elongation at Failure, minimum, ASTM D 751: 30 percent.
e. Low Temperature Flexibility, minimum, ASTM D 2136: -40 deg. F (-40 deg. C).
f. Thickness, minimum, ASTM D 751: 0.045 inch (1.1 mm).
g. Color: Black.
C. Detailing Reinforcing Fabric:
1. Woven Glass Fiber Mesh, Vinyl-Coated:Tremco, BURmesh.
a. Basis of design product: Tremco, BURmesh.
2.6 ASPHALT MATERIALS
A. Asphalt primer, low-odor, solvent-based.
1. Basis of design product: Tremco, TREMprime QD Low Odor.
2. Asbestos Content, ASTM D 276: None.
3. Flash Point, minimum, ASTM D 3278: 100 deg. F (38 deg. C).
B. Cold-applied one-part butyl-based elastomer adhesive for flashing membranes.
1. Basis of design product: Tremco, Sheeting Bond.
2. VOC, maximum, ASTM D 3960: <250 g/L.
3. Adhesion in peel, ASTM D 1876: 3 lbf/in (0.5 N/mm).
4. Lap shear adhesion, ASTM D 3960: 18 psi (124 kPa).
C. ASTM D 312 Type IV hot-melt asphalt in heat melt container.
1. Basis of design product: Field's Melt-Pak, Type IV.
2. Softening Point, min/max, ASTM D 36: 215225 deg. F (102107 deg. C).
3. Ductility at 77 deg. F, minimum, ASTM D 113: 2.5 cm.
4. Penetration at 77 deg. F (25 deg. C), min/max, ASTM D 5: 1530 dmm.
2.7 AUXILIARY BUILT-UP ROOFING MATERIALS
A. General: Auxiliary materials recommended by roofing manufacturer for intended use and compatible with
built-up roofing.
1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.
B. Cold
1. . Roof Cement, Asphalt-Based: ASTM D 4586, Type II, Class I, fibrated roof cement formulated for
use in installation and repair of asphalt ply and modified bitumen roofing plies and flashings; UL-
classified for fire resistance..
a. Basis of design product: Tremco, ELS.
b. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 190 g/L.
c. Non-Volatile Matter, ASTM D 4586: 85 percent.
C. Asphalt Roofing Cement: ASTM D 4586, asbestos free, of consistency required by roofing manufacturer for
application.
D. Mastic Sealant: Polyisobutylene, plain or modified bitumen, nonhardening, nonmigrating, nonskinning, and
nondrying.
E. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance
provisions in FM Approvals 4470, designed for fastening built-up roofing components to substrate, tested
by manufacturer for required pullout strength, and acceptable to roofing manufacturer.
F. Metal Flashing Sheet: Metal flashing sheet is specified in Division 07 Section "Sheet Metal Flashing and
Trim."
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G. Miscellaneous Accessories: Provide miscellaneous accessories recommended by built-up roofing
manufacturer.
2.8 ROOF INSULATION
A. Polyisocyanurate board insulation, ASTM C1289 Type II Class 1 CFC-and HCFC-free, with recycled
content glass-fiber mat facer on both major surfaces. CCMC listed.
1. Compressive Strength, ASTM C1621: Grade 2: 20 psi (138 kPa).
2. Conditioned Thermal Resistance at 75 deg. F (24 deg. C): R-20 installed in 2 layer configuration.
B. General: Preformed roof insulation boards manufactured or approved by roofing manufacturer, selected
from manufacturer's standard sizes suitable for application, of thicknesses indicated.
C. Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of 1/4 inch per 12 inches
(1:48) unless otherwise indicated.
D. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for
sloping to drain. Fabricate to slopes indicated.
2.9 INSULATION ACCESSORIES
A. General: Roof insulation accessories recommended by insulation manufacturer for intended use and
compatible with built-up roofing.
B. Fasteners: Factory-coated steel fasteners and metal or plastic plates meeting corrosion-resistance
provisions in FM Approvals 4470, designed for fastening roof insulation to substrate and acceptable to
roofing manufacturer.
C. Cover Board Adhesive:
1. ASTM D 312 Type IV hot-melt asphalt in heat melt container..
a. Basis of design product: Field's Melt-Pak, Type IV
b. Softening Point, min/max, ASTM D 36: 215225 deg. F (102107 deg. C).
c. Ductility at 77 deg. F, minimum, ASTM D 113: 2.5 cm.
d. Penetration at 77 deg. F (25 deg. C), min/max, ASTM D 5: 1530 dmm.
D. Insulation Cant Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board.
E. Tapered Edge Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board.
F. Cover Board:
1. Cellulosic-fiber Insulation Board ASTM C208, Type II, Grades 1 and 2, with water-resistant binders,
non-asphaltic primer coated on four sides and chemically treated for deterioration, 1/2 inch (13 mm)
thick.
a. Basis of design product: Blue Ridge Structodek High Density Fiberboard.
b. Compressive strength, ASTM C 165: 15 lbf/sq. in..
c. Thermal resistance at 75 deg. F, ASTM C 518: R 1.3.
d. Recycled content, preconsumer: 20 percent.
e. Rapidly renewable content: 6 percent.
2.10 SURFACING
A. Aggregate Stone Surfacing: Water worn or crushed stone.
1. Size: 14"-#10
B. Cold-applied aggregate adhesive, water-based, low-VOC, formulated for compatibility with asphalt and coal
tar roofing membranes and flashings.
1. Basis of design product: Tremco, ECOLastic.
2. Volatile Organic Compounds(VOC), maximum, ASTM D 3960: 30 g/L.
C. Aluminized reflective roof coating, phenolic-resin-based applicable for use over emulsion coatings.
1. Basis of design product: Tremco, Double-Duty Aluminum LV.
2. Volatile Organic Compounds(VOC), maximum, ASTM D 3960: 500 g/L.
3. Reflectance, minimum, ASTM D 903: 70 percent.
2.11 WALKWAYS
A. Walkway Product:
1. 1 Walkway pads, ceramic-granule-surfaced reinforced asphaltic composition slip-resisting pads,
manufactured as a traffic pad for foot traffic, 1/2 inch (13 mm)thick minimum.
a. Flexural Strength at max. load, minimum, ASTM C 203: 210 psi (1.5 kPa).
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b. Granule adhesion (weight loss), maximum, ASTM D 4977: 1.1 gram.
c. Impact Resistance at 77 deg. F (25 deg. C), ASTM D 3746: No Damage to Roof.
d. Pad Size: 36 by 48 inch (914 by 1220 mm).
PART 3- EXECUTION
3.1 SCOPE OF WORK-NOTE: Use of hot asphalt will be allowed, at contractors discretion, up to the date of
August 18. All hot equipment shall be removed from the job site as of Monday August 21.
A. Provide all required permits, labor and materials to complete the following work:
1. Remove roofing and insulation to deck and dispose of.
2. Remove existing skirt flashing and coping and dispose of.
3. Remove and dispose of electrical conduit on roof area 9.
4. Remove and dispose of abandoned curbs and equipment on area 17.
5. Modify wall vents on area 9 & 11 per project drawings.
6. Remove Drain bowl on area 17 as noted on drawings, and repair hole in deck.
7. Remove existing sleeper curbs on area 17 and replace with new deck supported curbs per project
drawings.
8. Raise existing equipment curbs to remain to rise minimum 8"above surface of new roof system.
9. Raise area separator wall between areas 11 & 17 with 2 -2x's flat per project drawings.
10. Raise sections of perimeter coping walls per project drawings.
11. Walk and inspect structural decking. Inform Owner of any deteriorated deck before continuing.
12. Install R-20 Isocyanurate insulation in 2 layers, mechanically attached to deck to meet uplift
requirements.
a. Provide drain sumps with a transition slope of max 1.5" in 12"
13. Provide %" cover board adhered in specified insulation adhesive or hot asphalt.
14. Install 2 plies of polyester ply sheet set in Type IV hot asphalt gal per 100 sqr ft.
15. Provide an additional 2 plies of type VI glass felt in type IV hot asphalt.
16. Provide flood coat of type IV hot asphalt over new roof system.
17. Provide 1 ply polyester backer sheet at all base flashing details set in type IV hot asphalt.
18. Provide Elastomeric base flashing set in cold modified adhesive at all wall and curb interfaces.
19. Allow roof to cure minimum 14 day and surface with 1/4" -#10 crushed aggregate at 250 lbs/sqr, set in
cold surfacing adhesive at 5 gal/sqr.
20. Provide reflective aluminum coating on Base flashing @ 1 gal per sqr., in 2 coat application.
21. Install new metal counter flashing under wall metals where removed. Ensure new skirt metal extends
minimum 1" up behind bottom closure element of metal wall covering.
22. Provide new standing seam coping on perimeter parapet.
23. Provide new curb caps on support curbs on roof area 17.
3.2 EXAMINATION
A. Examine substrates, areas, and conditions, with Installer present, for compliance with the following
requirements and other conditions affecting performance of roofing system:
1. Verify that roof openings and penetrations are in place and curbs are set and braced and that roof
drain bodies are securely clamped in place.
2. Verify that, blocking, curbs, and nailers are securely anchored to roof deck at penetrations and
terminations and that nailers match thicknesses of insulation. wood cants
3. Steel Roof Deck:
a. Verify that surface plane flatness and fastening of steel roof deck complies with requirements in
Division 05 Section "Steel Decking."
b. Verify that deck is securely fastened with no projecting fasteners and with no adjacent units in
excess of 1/16 inch (1.6 mm)out of plane relative to adjoining deck.
4. Tectum Roof Deck:
a. Verify that deck is securely fastened with no projecting fasteners and with no adjacent units in
excess of 1/16 inch (1.6 mm)out of plane relative to adjoining deck.
B. Proceed with installation only after unsatisfactory conditions have been corrected.
3.3 PREPARATION
A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation according
to roofing manufacturer's written instructions. Remove sharp projections.
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B. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto
surfaces of other construction. Remove roof-drain plugs when no work is taking place or when rain is
forecast.
3.4 INSTALLATION, GENERAL
A. Install roofing system in accordance with manufacturer's recommendations.
B. Install roofing system in accordance with the following NRCA recommended best practices and with
Manufacture's written installation instructions and product data sheets
1. Guide for Edge Scuppers with Tapered Saddles-Table 6
3.5 INSULATION INSTALLATION
A. Comply with built-up roofing manufacturer's written instructions for installing roof insulation.
B. Cant Strips: Install and secure preformed 45-degree cant strips at junctures of built-up roofing with vertical
surfaces or angle changes greater than 45 degrees.
C. Install tapered insulation under area of roofing to conform to slopes indicated.
D. Install insulation with long joints of insulation in a continuous straight line with end joints staggered between
rows, abutting edges and ends between boards. Fill gaps exceeding 1/4 inch (6 mm)with insulation.
1. Cut and fit insulation within 1/4 inch (6 mm) of nailers, projections, and penetrations.
E. Install insulation under area of roofing to achieve required thickness. Where overall insulation thickness is
2.7 inches (68 mm) or greater, install two or more layers with joints of each succeeding layer staggered
from joints of previous layer a minimum of 6 inches (150 mm) in each direction.
1. Install insulation at minimum thickness of 1-1/2 inches.
2. Install insulation at average overall thickness of minimum of 3.6 inches (R-20).
F. Trim surface of insulation where necessary at roof drains so completed surface is flush and does not
restrict flow of water.
G. Install tapered edge strips at perimeter edges of roof that do not terminate at vertical surfaces.
H. Mechanically Fastened Insulation: Install each layer of insulation and secure to deck using mechanical
fasteners specifically designed and sized for fastening specified board-type roof insulation to deck type.
1. Fasten insulation to resist uplift pressure at corners, perimeter, and field of roof.
I. Install cover boards over insulation with long joints in continuous straight lines with end joints staggered
between rows. Offset joints of insulation below a minimum of 6 inches (150 mm) in each direction. Loosely
butt cover boards together. Tape joints if required by roofing manufacturer.
1. Apply hot roofing asphalt to substrate and immediately bond cover board to substrate.
3.6 HOT-APPLIED BUILT-UP ROOFING INSTALLATION, GENERAL
A. Install roofing membrane according to roofing manufacturer's written instructions and applicable
recommendations of ARMA/NRCA's"Quality Control Guidelines for the Application of Built-up Roofing"and
as follows:
1. Deck Type: Metal and Cementitious wood fiber deck.
2. Number of Asphalt Ply Sheets: Four.
a. Base Plies: Heat Stabilized Polyester ply sheet: 2 plies.
b. Top Plies: Type VI Glass ply sheet: 2 plies
c. Adhering Method: Mopped.
3. Surfacing Type: A(aggregate).
B. Start installation of built-up roofing in presence of manufacturer's technical personnel.
C. Cooperate with testing agencies and personnel engaged or required to perform services for installing
roofing.
D. Coordinate installation of roofing system so insulation and other components of the roofing membrane
system not permanently exposed are not subjected to precipitation or left uncovered at the end of the
workday or when rain is forecast.
1. Provide tie-offs at end of each day's work configured as recommended by NRCA Roofing Manual
Appendix: Quality Control Guidelines- Insulation to protect new and existing roofing.
2. Complete terminations and base flashings and provide temporary seals to prevent water from entering
completed sections of roofing.
3. Remove temporary plugs from roof drains at end of each day.
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4. Remove and discard temporary seals before beginning work on adjoining roofing.
E. Hot Roofing Asphalt Heating: Heat asphalt to its equiviscous temperature, measured at the mop cart or
mechanical spreader immediately before application. Circulate asphalt during heating. Do not raise asphalt
temperature above equiviscous temperature range more than one hour before time of application. Do not
exceed asphalt manufacturer's recommended temperature limits during asphalt heating. Do not heat
asphalt within 25 deg F of flash point. Discard asphalt maintained at a temperature exceeding finished
blowing temperature for more than four hours.
1. Apply hot roofing asphalt within plus or minus 25 deg F of equiviscous temperature and adhere
components to asphalt heated to not less than 425 deg F.
F. Substrate-Joint Penetrations: Prevent roofing asphalt and adhesives from penetrating substrate joints,
entering building, or damaging built-up roofing components or adjacent building construction.
3.7 ROOFING MEMBRANE INSTALLATION
A. Install 2 base ply sheets starting at low point of roofing. Align ply sheets without stretching. Shingle side
laps of ply sheets uniformly to achieve required number of plies throughout thickness of roofing membrane.
Shingle in direction to shed water. Extend ply sheets over and terminate beyond cants.
1. Embed each ply sheet in a solid mopping of hot roofing asphalt applied at rate required by roofing
manufacturer, to form a uniform membrane without ply sheets touching.
2. Install an additional 2 top ply sheets starting at low point of roofing. Align ply sheets without stretching.
Shingle side laps of ply sheets uniformly to achieve required number of plies throughout thickness of
roofing membrane. Shingle in direction to shed water. Extend ply sheets over and terminate beyond
cants
B. Seal new plies with flood coat of hot asphalt and allow to cure minimum 14 days prior to application of
surfacing.
C. Install an additional 2 top ply sheets starting at low point of roofing. Align ply sheets without stretching.
Shingle side laps of ply sheets uniformly to achieve required number of plies throughout thickness of
roofing membrane. Shingle in direction to shed water. Extend ply sheets over and terminate beyond cants
1. Embed each ply sheet in a solid mopping of hot roofing asphalt applied at rate required by roofing
manufacturer, to form a uniform membrane without ply sheets touching.
3.8 FLASHING AND STRIPPING INSTALLATION
A. Install base flashing over cant strips and other sloping and vertical surfaces, at roof edges, and at
penetrations through roof, and secure to substrates according to built-up roofing manufacturer's written
instructions and as follows:
1. Extend base flashing up walls or parapets a minimum of 12 inches(300 mm) above built-up roofing
and 6 inches(150 mm) onto field of built-up roofing.
2. Prime substrates with asphalt primer if required by built-up roofing manufacturer.
3. Backer Sheet Application: Adhere backer sheet to substrate in a solid mopping of hot roofing asphalt.
4. Flashing Sheet Application: Adhere flashing sheet to substrate in cold-applied adhesive at rate
required by roofing manufacturer. Mechanically fasten top of base flashing securely at terminations
and perimeter of roofing.
B. Seal top termination of base flashing with a strip of glass-fiber fabric set in asphalt roofing cement.
C. Install stripping, according to roofing manufacturer's written instructions, where metal flanges and edgings
are set on built-up roofing.
1. Flashing-Sheet Stripping: Install flashing-sheet stripping in a continuous coating of cold-applied
adhesive, and extend onto roofing membrane.
D. Roof Drains: Set 30-by-30-inch (760-by-760-mm)#4 lead flashing in bed of asphalt roofing cement on
completed built-up roofing. Cover metal flashing with built-up roofing cap-sheet stripping and extend a
minimum of 6 inches (150 mm) beyond edge of metal flashing onto field of built-up roofing. Clamp built-up
roofing, metal flashing, and stripping into roof-drain clamping ring.
1. Install flashing sheet stripping according to roofing manufacturer's written instructions.
3.9 SURFACING AND COATING INSTALLATION
A. Prior to application of aggregate surfacing system, inspect the finished membrane in presence of
Manufacture and owners representative. Mark all defects and repair prior to application of final surfacing.
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B. Aggregate Surfacing: Promptly after installing and testing roofing membrane, base flashing, and stripping,
flood coat roof surface with cold-applied surfacing adhesive applied at rate required by roofing
manufacturer. Cast the following average weight of aggregate in a uniform course:
1. Aggregate Weight: 250-300 lb./100 sq. ft. (20 kg/sq. m).
C. Apply reflective aluminum coating to base flashings. according to manufacturer's written instructions, by
spray, roller, or other suitable application method at 1 gal per sqr in 2 coat application.
3.10 WALKWAY INSTALLATION
A. Walkway Pads: Install walkway pads using units of size indicated or, if not indicated, of manufacturer's
standard size according to walkway pad manufacturer's written instructions.
1. Sweep away loose aggregate surfacing.
2. Set walkway pads in 5, spot applications of mastic per walk pad.
3.11 FIELD QUALITY CONTROL
A. Roofing Inspector: At Owners discretion, Owner will engage a qualified roofing inspector to perform roof
tests and inspections and to prepare test reports.
B. Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel to inspect roofing
installation at commencement and upon completion.
1. Notify Architect and Owner 48 hours in advance of date and time of inspection.
C. Repair or remove and replace components of built-up roofing where test results or inspections indicate that
they do not comply with specified requirements.
1. Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance
of replaced or additional work with specified requirements.
3.12 PROTECTING AND CLEANING
A. Protect built-up roofing from damage and wear during remainder of construction period. When remaining
construction will not affect or endanger roofing, inspect roofing for deterioration and damage, describing its
nature and extent in a written report, with copies to Architect and Owner.
B. Correct deficiencies in or remove built-up roofing that does not comply with requirements, repair substrates,
and repair or reinstall roofing to a condition free of damage and deterioration at time of Substantial
Completion and according to warranty requirements.
C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures
recommended by manufacturer of affected construction.
3.13 ROOFING INSTALLER'S WARRANTY
A. WHEREAS of , herein called
the"Roofing Installer," has performed roofing and associated work("work") on the following project:
1. Owner:
2. Address:
3. Building Name/Type:
4. Address:
5. Area of Work:
6. Acceptance Date:
7. Warranty Period:
8. Expiration Date:
B. AND WHEREAS Roofing Installer has contracted (either directly with Owner or indirectly as a
subcontractor)to warrant said work against leaks and faulty or defective materials and workmanship for
designated Warranty Period,
C. NOW THEREFORE Roofing Installer hereby warrants, subject to terms and conditions herein set forth, that
during Warranty Period he will, at his own cost and expense, make or cause to be made such repairs to or
replacements of said work as are necessary to correct faulty and defective work and as are necessary to
maintain said work in a watertight condition.
D. This Warranty is made subject to the following terms and conditions:
1. Specifically excluded from this Warranty are damages to work and other parts of the building, and to
building contents, caused by:
a. lightning;
b. peak gust wind speed exceeding 74 mph (105 k/hr);
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c. fire;
d. failure of roofing system substrate, including cracking, settlement, excessive deflection,
deterioration, and decomposition;
e. faulty construction of parapet walls, copings, chimneys, skylights, vents, equipment supports, and
other edge conditions and penetrations of the work;
f. vapor condensation on bottom of roofing; and
g. activity on roofing by others, including construction contractors, maintenance personnel, other
persons, and animals, whether authorized or unauthorized by Owner.
2. When work has been damaged by any of foregoing causes, Warranty shall be null and void until such
damage has been repaired by Roofing Installer and until cost and expense thereof have been paid by
Owner or by another responsible party so designated.
3. Roofing Installer is responsible for damage to work covered by this Warranty but is not liable for
consequential damages to building or building contents resulting from leaks or faults or defects of
work.
4. During Warranty Period, if Owner allows alteration of work by anyone other than Roofing Installer,
including cutting, patching, and maintenance in connection with penetrations, attachment of other
work, and positioning of anything on roof, this Warranty shall become null and void on date of said
alterations, but only to the extent said alterations affect work covered by this Warranty. If Owner
engages Roofing Installer to perform said alterations, Warranty shall not become null and void unless
Roofing Installer, before starting said work, shall have notified Owner in writing, showing reasonable
cause for claim, that said alterations would likely damage or deteriorate work, thereby reasonably
justifying a limitation or termination of this Warranty.
5. During Warranty Period, if original use of roof is changed and it becomes used for, but was not
originally specified for, a promenade, work deck, spray-cooled surface, flooded basin, or other use or
service more severe than originally specified, this Warranty shall become null and void on date of said
change, but only to the extent said change affects work covered by this Warranty.
6. Owner shall promptly notify Roofing Installer of observed, known, or suspected leaks, defects, or
deterioration and shall afford reasonable opportunity for Roofing Installer to inspect work and to
examine evidence of such leaks, defects, or deterioration.
7. This Warranty is recognized to be the only warranty of Roofing Installer on said work and shall not
operate to restrict or cut off Owner from other remedies and resources lawfully available to Owner in
cases of roofing failure. Specifically, this Warranty shall not operate to relieve Roofing Installer of
responsibility for performance of original work according to requirements of the Contract Documents,
regardless of whether Contract was a contract directly with Owner or a subcontract with Owner's
General Contractor.
E. IN WITNESS THEREOF, this instrument has been duly executed by:
1. Authorized Signature:
2. Name:
3. Date:
END OF SECTION
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PART 1 -GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and
Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Cold-applied built-up asphalt roofing system on metal and cementitious wood fiber deck, including but
not limited to:
a. Roof insulation.
b. Roof membrane and membrane base flashings.
c. Roof surfacing consisting of surfacer with aggregate surfacing.
B. Related Sections:
1. Division 07 Section "Preparation for Re-Roofing"for existing roofing tearoff, patching, and substrate
preparation for reroofing.
2. Division 07 Section "Sheet Metal Flashing and Trim"for custom metal roof penetration flashings,
flashings, and counterflashings.
3. Division 07 Section "Roof Specialties"for manufactured copings, roof edge flashings, roof edge
drainage systems, counterflashings, and reglets.
C. Alternates: Refer to Division 01 Section "Alternates"for description of Work in this Section affected by
alternates.
D. Allowances: Refer to Division 01 Section "Allowances"for description of Work in this Section affected by
allowances.
E. Unit Prices: Refer to Division 01 Section "Unit Prices"for description of Work in this Section affected by unit
prices.
1.3 DEFINITIONS
A. Roofing Terminology: See ASTM D 1079 and glossary of NRCA's "The NRCA Roofing and Waterproofing
Manual"for definition of terms related to built-up roofing.
1.4 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
B. Shop Drawings: For built-up roofing. Include plans, elevations, sections, details, and attachments to other
work. Provide roof plan showing orientation and types of roof deck, orientation of membrane roofing, and
fastening spacings and patterns for mechanically fastened components.
1. Base flashings and built-up terminations.
a. Indicate details meet requirements of NRCA required by this Section.
2. Tapered insulation, including slopes.
3. Crickets, saddles, and tapered edge strips, including slopes.
4. Insulation fastening patterns for corner, perimeter, and field-of-roof locations.
C. Samples for Verification: For the following products:
1. Sheet roofing materials, of color specified for exposed material.
2. Roof insulation.
3. 1 lb. of aggregate surfacing material in gradation and color indicated.
4. Walkway materials.
5. Six insulation fasteners of each type, length, and finish.
1.5 INFORMATIONAL SUBMITTALS
A. Qualification Data: For Installer, Manufacturer, and Roofing Inspector.
1. Include letter from Manufacturer written for this Project indicating approval of Installer.
B. Product Test Reports: Based on evaluation of comprehensive tests performed by manufacturer and
witnessed by a qualified testing agency, for components of built-up roofing.
C. Warranties: Unexecuted sample copies of special warranties.
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D. Field Quality Control Reports: Daily reports of Roofing Inspector. Include weather conditions, description of
work performed, tests performed, defective work observed, and corrective actions taken to correct
defective work.
1.6 CLOSEOUT SUBMITTALS
A. Maintenance Data: To include in maintenance manuals.
B. Warranties: Executed copies of warranties.
1.7 QUALITY ASSURANCE
A. Installer Qualifications: An employer of workers trained and certified by manufacturer, including a full-time
on-site supervisor with a minimum of five years' experience installing similar work, able to communicate
verbally with Contractor, Architect, and employees, and qualified by the manufacturer to furnish warranty of
type specified.
B. Manufacturer Qualifications: Approved manufacturer with UL listed roofing systems comparable to those
specified for this Project, with minimum five years' experience in manufacture of comparable products in
successful use in similar applications, and able to furnish warranty with provisions matching specified
requirements.
C. Roofing Inspector Qualifications: A technical representative of manufacturer, not engaged in the sale of
products, and experienced in the installation and maintenance of the specified roofing system, qualified to
perform roofing observation and inspection specified in Field Quality Control Article to determine Installer's
compliance with the requirements of this Project, and approved by the manufacturer to issue warranty
certification. The Roofing Inspector shall be one of the following:
1. An authorized full-time employee of the manufacturer.
D. Manufacturer's Installation Instructions: Obtain and maintain on-site manufacturer's written
recommendations and instructions for installation of products.
E. Preinstallation Roofing Conference: Conduct conference at Project site.
1. Meet with Owner, Architect, Owner's insurer if applicable, testing and inspecting agency
representative, roofing Installer, roofing manufacturer's representative, and installers whose work
interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.
2. Review drawings and specifications.
3. Review methods and procedures related to roofing installation, including manufacturer's written
instructions.
4. Review and finalize construction schedule and verify availability of materials, Installer's personnel,
equipment, and facilities needed to make progress and avoid delays.
5. Examine substrate conditions and finishes for compliance with requirements, including flatness and
fastening.
6. Review structural loading limitations of roof deck during and after roofing.
7. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and
condition of other construction that will affect roofing.
8. Review governing regulations and requirements for insurance and certificates if applicable.
9. Review temporary protection requirements for roofing during and after installation.
10. Review roof observation and repair procedures after roofing installation.
1.8 DELIVERY, STORAGE, AND HANDLING
A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with
manufacturer's name, product brand name and type, date of manufacture, approval or listing agency
markings, and directions for storing and mixing with other components.
B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within
the temperature range required by roofing manufacturer. Protect stored liquid material from direct sunlight.
1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.
C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling,
and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for
handling, storing, and protecting during installation.
D. Handle and store roofing materials and place equipment in a manner to avoid permanent deflection of
deck.
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1.9 PROJECT CONDITIONS
A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit
roofing to be installed according to manufacturer's written instructions and warranty requirements.
B. Daily Protection: Coordinate installation of roofing so insulation and other components of roofing system
not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or
when rain is forecast.
1.10 WARRANTY
A. Warranty, General: Warranties specified shall be in addition to, and run concurrent with, other warranties
required by the Contract Documents. Manufacturer's disclaimers and limitations on product warranties do
not relieve Contractor of obligations under requirements of the Contract Documents.
B. Manufacturer's Warranty: Manufacturer's standard or customized form in which manufacturer agrees to
repair or replace components of built-up roofing that fail in materials or workmanship within specified
warranty period. Failure includes roof leaks.
1. Manufacturer's warranty includes roofing membrane, base flashings, fasteners, roofing membrane
accessories and other components of roofing system specified in this Section.
2. Warranty Period: 20 years from date of Substantial Completion.
C. Installer's Warranty: Submit roofing Installer's warranty, on warranty form at end of this Section, signed by
Installer, covering the Work of this Section and related Sections indicated above, including all components
of built-up roofing such as built-up roofing membrane, base flashing, roof insulation, fasteners, cover
boards, substrate boards, vapor retarders, roof pavers, and walkway products, for the following warranty
period:
1. Warranty Period: Two years from date of Substantial Completion.
D. Extended Roof System Warranty: Warranties specified in this Section include the following components
and systems specified in other sections supplied by the roofing system Manufacturer, and installed by the
roofing system Installer:
1. Sheet metal flashing and trim, including roof penetration flashings.
2. Roof curbs, hatches, and penetration flashings.
3. Metal roof, wall, and soffit panels and trim.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Basis-of-Design Manufacturer/Product: The roof system specified in this Section is based upon products of
Tremco, Inc., Beachwood, OH, (800) 562-2728, www.tremcoroofing.com that are named in other Part 2
articles. Provide specified products.
B. Source Limitations: Obtain components for roofing system from same manufacturer as membrane roofing
or manufacturer approved by membrane roofing manufacturer.
2.2 PERFORMANCE REQUIREMENTS
A. General Performance: Roofing shall withstand exposure to weather without failure or leaks due to defective
manufacture or installation.
1. Accelerated Weathering: Roofing system shall withstand 2000 hours of exposure when tested
according to ASTM G 152, ASTM G 154, or ASTM G 155.
2. Impact Resistance: Roofing system shall resist impact damage when tested according to ASTM D
3746 or ASTM D 4272.
B. Material Compatibility: Provide roofing materials that are compatible with one another under conditions of
service and application required, as demonstrated by built-up roofing manufacturer based on testing and
field experience.
C. Roofing System Design: Provide roofing system that is identical to systems that have been successfully
tested by a qualified testing and inspecting agency in accordance with ANSI/FM 4474, UL 580, or UL 1897,
and to resist uplift pressures.
1. All Zones (Corner, Perimeter, and Field-of-Roof) Uplift Pressures: As indicated on Drawings.
2. Zone 1 (Field-of-Roof) Uplift Pressure: 30 lbf/sq. ft. (kPa).
3. Zone 2 (Perimeter) Uplift Pressure: 50 lbf/sq. ft. (kPa), located within 8 feet(m) of roof perimeter.
4. Zone 3 (Corners) Uplift Pressure: 75 lbf/sq. ft. (kPa), located within 8 feet(m) of roof outside corner.
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D. SPRI Wind Design Standard: Manufacture and install copings and roof edge flashings tested according to
SPRI ES-1 and capable of resisting the following design pressures:
1. Design Pressure: 40 Ibf/sq. ft. (kPa).
E. Roofing Membrane System Load-Strain Properties: Provide a roofing membrane identical to component
systems that have been successfully tested by a qualified independent testing and inspecting agency to
meet the following minimum load-strain properties at membrane failure when tested according to ASTM D
2523:
1. Tensile strain at failure, at 0 deg. F (-18 deg. C) : 497 Ibf/in, machine direction, minimum; 3 percent
elongation, maximum
2. Tensile strain at failure, at 0 deg. F (-18 deg. C) : 411 lbf/in , cross-machine direction, minimum; 3
percent elongation, maximum
F. Flashings and Fastening: Comply with requirements of Division 07 Sections"Sheet Metal Flashing and
Trim"and "Roof Specialties." Provide base flashings, perimeter flashings, detail flashings and component
materials and installation techniques that comply with requirements and recommendations of the following:
1. NRCA Roofing Manual (Sixth Edition)for construction details and recommendations.
2. SMACNA Architectural Sheet Metal Manual (Seventh Edition)for construction details.
G. Exterior Fire-Test Exposure: ASTM E 108, Class A; for application and roof slopes indicated, as
determined by testing identical membrane roofing materials by a qualified testing agency. Materials shall be
identified with appropriate markings of applicable testing agency.
2.3 BASE-SHEET MATERIALS
A. Sheathing Paper: Red-rosin type, minimum 3 lb./100 sq. ft. (0.16 kg/sq. m).
B. Ply Sheets:
1. ASTM D 4601 Type Ilnon-perforated SBS-modified asphalt coated fiberglass/fiberglass/polyester
reinforced high tensile strength sheet dusted with fine mineral surfacing on both sides.
a. Basis of design product: Tremco, BURmastic Composite Ply HT.
b. Tensile Strength, minimum, ASTM D 5147: Machine direction, 165 Ibf/in (28.9 kN/m); Cross
machine direction, 150 Ibf/in (26.3 kN/m).
c. Tear Strength, minimum, ASTM D 5147: Machine direction, 210 Ibf(0.9 kN); Cross machine
direction, 185 lbf(0.8 kN).
d. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 5147: 6 percent.
e. Thickness, minimum, ASTM D 146: 0.055 inch (1.4 mm).
C. Base Flashing Sheets:
1. Thermoset elastomeric flashing sheet, polyester-reinforced with EPDM and SBR elastomers.
a. Basis of design product: Tremco, TRA Elastomeric Sheeting.
b. Breaking Strength, minimum, ASTM D 751: Machine direction 350 lbf(1550 N); Cross machine
direction 300 lbf(1330 N).
c. ear Strength, minimum, ASTM D 751: Machine direction 77 lbf(342 N); Cross machine direction
77 Ibf(342 N).
d. Elongation at Failure, minimum, ASTM D 751: 30 percent.
e. Low Temperature Flexibility, minimum, ASTM D 2136: -40 deg. F(-40 deg. C).
f. Thickness, minimum, ASTM D 751: 0.045 inch (1.1 mm).
g. Color: Black.
D. Detailing Fabric:
1. Woven Glass Fiber Mesh, Vinyl-Coated: Tremco, BURmesh.
a. Basis of design product: Tremco, BURmesh.
2.4 COLD-APPLIED ADHESIVE MATERIALS
A. General: Adhesive and sealant materials recommended by roofing manufacturer for intended use and
compatible with built-up roofing.
1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.
2. Adhesives and sealants that are not on the exterior side of weather barrier shall comply with the
following limits for VOC content when calculated according to 40 CFR 59, Subpart D (EPA Method
24):
a. Plastic Foam Adhesives: 50 g/L.
b. Gypsum Board and Panel Adhesives: 50 g/L.
c. Multipurpose Construction Adhesives: 70 g/L.
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d. Fiberglass Adhesives: 80 g/L.
e. Contact Adhesives: 80 g/L.
f. Other Adhesives: 250 g/L.
g. Nonmembrane Roof Sealants: 300 g/L.
h. Sealant Primers for Nonporous Substrates: 250 g/L.
i. Sealant Primers for Porous Substrates: 775 g/L.
B. Asphalt Primer:
1. Asphalt primer, low-odor, solvent-based.
a. Basis of design product: Tremco, TREMprime QD Low Odor.
b. Asbestos Content, ASTM D 276: None.
c. Flash Point, minimum, ASTM D 3278: 100 deg. F (38 deg. C).
C. Ply Sheet Adhesive:
1. Cold-applied roofing adhesive, one-part, formulated for compatibility and use with specified roofing
membranes and flashings.
a. Basis of design product: Tremco, BURmastic Adhesive LV.
b. Volatile Organic Compounds (VOC), maximum, ASTM D 6511: <250 g/L.
c. Nonvolatile Content, minimum, ASTM D 6511: 75 percent.
d. Flash Point, minimum, ASTM D 93: 100 deg F (38 deg C).
D. Flashing Sheet Adhesive:
1. Cold-applied one-part butyl-based elastomer adhesive for flashing membranes.
a. Basis of design product: Tremco, Sheeting Bond.
b. VOC, maximum, ASTM D 3960: <250 g/L.
c. Adhesion in peel, ASTM D 1876: 3 Ibf/in (0.5 N/mm).
d. Lap shear adhesion, ASTM D 3960: 18 psi (124 kPa).
E. Asphalt Roofing Cement: ASTM D 4586, asbestos free, of consistency required by roofing manufacturer for
application.
F. Mastic Sealant: Polyisobutylene, plain or modified bitumen, nonhardening, nonmigrating, nonskinning, and
nondrying.
2.5 AUXILIARY BUILT-UP ROOFING MATERIALS
A. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance
provisions in FM Approvals 4470, designed for fastening built-up roofing components to substrate, tested
by manufacturer for required pullout strength, and acceptable to roofing manufacturer.
B. Metal Flashing Sheet: Metal flashing sheet is specified in Division 07 Section "Sheet Metal Flashing and
Trim."
C. Miscellaneous Accessories: Provide miscellaneous accessories recommended by built-up roofing
manufacturer.
2.6 ROOF INSULATION MATERIALS
A. Roofing Insulation, General: Preformed roof insulation boards manufactured or approved by roofing
manufacturer, selected from manufacturer's standard sizes suitable for application, of thicknesses
indicated.
B. Roof Insulation:
1. Polyisocyanurate board insulation, ASTM C1289 Type II Class 1 CFC-and HCFC-free, with recycled
content glass-fiber mat facer on both major surfaces. CCMC listed.
a. Compressive Strength, ASTM C1621: Grade 2: 20 psi (138 kPa).
b. Conditioned Thermal Resistance at 75 deg. F (24 deg. C): R-20 installed in 2 layer configuration
C. Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of 1/4 inch per 12 inches
unless otherwise indicated.
D. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for
sloping to drain. Fabricate to slopes indicated.
E. Insulation Cover Board:
1. Cellulosic-fiber Insulation Board ASTM C208, Type II, Grades 1 and 2, with water-resistant binders,
non-asphaltic primer coated on four sides and chemically treated for deterioration, 1/2 inch (13 mm)
thick.
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a. Basis of design product: Blue Ridge Structodek High Density Fiberboard.
b. Compressive strength, ASTM C 165: 15 lbf/sq. in..
c. Thermal resistance at 75 deg. F, ASTM C 518: R 1.3.
d. Recycled content, preconsumer: 20 percent.
e. Rapidly renewable content: 6 percent.
F. Insulation Adhesive:
1. Cold fluid-applied bead-applied adhesive, bituminous-urethane formulated to adhere roof insulation to
substrate.
a. Basis of design product: Tremco, Fas-n-Free Adhesive.
b. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 20 g/L.
c. Tensile Strength at 77 deg F (25 deg C), minimum, ASTM D 412: 125 psi (862 kPa).
d. Adhesion Strength in Tension at 77 deg. F (25 deg. C), minimum, ASTM D 7105: 20 psi (135
kPa).
e. Adhesion Strength in Shear at 77 deg. F (25 deg. C), minimum, ASTM D 816: 75 psi (517 kPa).
f. Elongation at 77 deg. F (25 deg. C), minimum, ASTM D 412: 300 percent.
g. Low-Temperature Flexibility, ASTM D 816: Pass at-60 deg. F (-51 deg. C).
G. Insulation Cant Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board.
H. Wood Cant Strips: Comply with requirements in Division 06 carpentry section.
I. Tapered Edge Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board.
J. Substrate Joint Tape: 6-or 8-inch-(150-or 200-mm-)wide, coated, glass fiber.
2.7 SURFACING
A. Aggregate Stone Surfacing: Smooth, washed, riverbed gravel or other acceptable smooth-faced stone that
withstands weather exposure without significant deterioration and does not contribute to membrane
degradation.
1. Size: 14" -#10
B. Cold-applied Surfacing Adhesive, water-based, low-VOC, formulated for compatibility with asphalt and coal
tar roofing membranes and flashings.
1. Basis of design product: Tremco, ECOLastic.
2. Volatile Organic Compounds(VOC), maximum, ASTM D 3960: 30 g/L.
C. Aluminized reflective roof coating, phenolic-resin-based applicable for use over emulsion coatings.
1. Basis of design product: Tremco, Double-Duty Aluminum LV.
2. Volatile Organic Compounds (VOC), maximum, ASTM D 3960: 500 g/L.
3. Reflectance, minimum, ASTM D 903: 70 percent.
2.8 WALKWAYS
A. Walkway Product:
1. Walkway pads, ceramic-granule-surfaced reinforced asphaltic composition slip-resisting pads,
manufactured as a traffic pad for foot traffic, 1/2 inch (13 mm) thick minimum.
a. Flexural Strength at max. load, minimum, ASTM C 203: 210 psi (1.5 kPa).
b. Granule adhesion (weight loss), maximum, ASTM D 4977: 1.1 gram.
c. Impact Resistance at 77 deg. F (25 deg. C), ASTM D 3746: No Damage to Roof.
d. Pad Size: 36 by 48 inch (914 by 1220 mm).
PART 3 - EXECUTION
3.1 SCOPE OF WORK
A. Provide all required permits, labor and materials to complete the following work:
1. Remove roofing and insulation to deck and dispose of.
2. Remove existing skirt flashing and coping and dispose of.
3. Remove and dispose of electrical conduit on roof area 9.
4. Remove and dispose of abandoned curbs and equipment on area 17.
5. Modify wall vents on area 9 & 11 per project drawings.
6. Remove Drain bowl on area 17 as noted on drawings, and repair hole in deck.
7. Remove existing sleeper curbs on area 17 and replace with new deck supported curbs per project
drawings.
8. Raise existing equipment curbs to remain to rise minimum 8" above surface of new roof system.
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9. Raise area separator wall between areas 11 & 17 with 2-2x's flat per project drawings.
10. Raise sections of perimeter coping walls per project drawings.
11. Walk and inspect structural decking. Inform Owner of any deteriorated deck before continuing.
12. Install R-20 Isocyanurate insulation in 2 layers, mechanically attached to deck to meet uplift
requirements.
a. Provide drain sumps with a transition slope of max 1.5" in 12"
13. Adhere'/" cover board in specified insulation adhesive.
14. Install 3 plies of polyester and glass reinforced ply sheet set in cold adhesive @ 2.5 gal per 100 sqr ft.
15. Provide Elastomeric base flashing set in cold modified adhesive at all wall and curb interfaces.
16. Allow roof to cure minimum 21 day and surface with 14"-#10 crushed aggregate at 250 lbs/sqr, set in
cold surfacing adhesive at 5 gal/sqr.
17. Provide reflective aluminum coating on Base flashing @ 1 gal per sqr. in 2 coat application.
18. Install new metal counter flashing under wall metals where removed. Ensure new skirt metal extends
minimum 1" up behind bottom closure element of metal wall covering.
19. Provide new standing seam coping on perimeter parapet.
20. Provide new curb caps on support curbs on roof area 17.
3.2 EXAMINATION
A. Examine substrates, areas, and conditions, with Installer present, for compliance with the following
requirements and other conditions affecting performance of roofing system:
1. Verify that roof openings and penetrations are in place and curbs are set and braced and that roof
drain bodies are securely clamped in place.
2. Verify that, blocking, curbs, and nailers are securely anchored to roof deck at penetrations and
terminations and that nailers match thicknesses of insulation. wood cants
3. Steel Roof Deck:
a. Verify that deck is securely fastened with no projecting fasteners and with no adjacent units in
excess of 1/16 inch (1.6 mm) out of plane relative to adjoining deck.
4. Tectum Roof Deck:
a. Verify that deck is securely fastened with no projecting fasteners and with no adjacent units in
excess of 1/16 inch (1.6 mm) out of plane relative to adjoining deck.
B. Proceed with installation only after unsatisfactory conditions have been corrected.
3.3 PREPARATION
A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation according
to roofing manufacturer's written instructions. Remove sharp projections.
B. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto
surfaces of other construction. Remove roof-drain plugs when no work is taking place or when rain is
forecast.
3.4 INSTALLATION, GENERAL
A. Install roofing in accordance with NRCA recommended best practices and with Manufacture's writen
installation instructions and product data sheets.
3.5 INSULATION INSTALLATION
A. Comply with built-up roofing manufacturer's written instructions for installing roof insulation.
B. Cant Strips: Install and secure preformed 45-degree cant strips at junctures of built-up roofing with vertical
surfaces or angle changes greater than 45 degrees.
C. Install tapered insulation under area of roofing to conform to slopes indicated.
D. Install insulation with long joints of insulation in a continuous straight line with end joints staggered between
rows, abutting edges and ends between boards. Fill gaps exceeding 1/4 inch (6 mm)with insulation.
1. Cut and fit insulation within 1/4 inch (6 mm)of nailers, projections, and penetrations.
E. Install insulation under area of roofing to achieve required thickness. Where overall insulation thickness is
2.7 inches (68 mm) or greater, install two or more layers with joints of each succeeding layer staggered
from joints of previous layer a minimum of 6 inches (150 mm) in each direction.
1. Install insulation at minimum thickness of 1-1/2 inches.
2. Install insulation at average overall thickness of 3.6 inches (R-20)
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 07 51 13.13
060917 Page 8 of 10
BUILT-UP ASPHALT ROOFING, COLD-APPLIED
F. Trim surface of insulation where necessary at roof drains so completed surface is flush and does not
restrict flow of water.
G. Install tapered edge strips at perimeter edges of roof that do not terminate at vertical surfaces.
H. Mechanically Fastened Insulation: Install each layer of insulation and secure to deck using mechanical
fasteners specifically designed and sized for fastening specified board-type roof insulation to deck type.
1. Fasten insulation to resist uplift pressure at corners, perimeter, and field of roof.
I. Install cover boards over insulation with long joints in continuous straight lines with end joints staggered
between rows. Offset joints of insulation below a minimum of 6 inches (150 mm) in each direction. Loosely
butt cover boards together. Tape joints if required by roofing manufacturer.
1. Set cover board in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining cover
in place.
3.6 COLD-APPLIED BUILT-UP ROOFING INSTALLATION, GENERAL
A. Install roofing membrane according to roofing manufacturer's written instructions and applicable
recommendations of ARMA/NRCA's"Quality Control Guidelines for the Application of Built-up Roofing" and
as follows:
1. Deck Type: Metal and Cementitious wood fiber deck.
2. Number of Asphalt Ply Sheets: Three.
a. Adhering Method: Cold-applied adhesive.
3. Surfacing Type: A(aggregate).
B. Start installation of built-up roofing in presence of manufacturer's technical personnel.
C. Cooperate with testing agencies and personnel engaged or required to perform services for installing
roofing.
D. Coordinate installation of roofing system so insulation and other components of the roofing membrane
system not permanently exposed are not subjected to precipitation or left uncovered at the end of the
workday or when rain is forecast.
1. Provide tie-offs at end of each day's work configured as recommended by NRCA Roofing Manual
Appendix: Quality Control Guidelines- Insulation to protect new and existing roofing.
2. Complete terminations and base flashings and provide temporary seals to prevent water from entering
completed sections of roofing.
3. Remove temporary plugs from roof drains at end of each day.
4. Remove and discard temporary seals before beginning work on adjoining roofing.
E. Substrate-Joint Penetrations: Prevent roofing asphalt and adhesives from penetrating substrate joints,
entering building, or damaging built-up roofing components or adjacent building construction.
3.7 ROOFING MEMBRANE INSTALLATION
A. Install ply sheets starting at low point of roofing. Align ply sheets without stretching. Shingle side laps of ply
sheets uniformly to achieve required number of plies throughout thickness of roofing membrane. Shingle in
direction to shed water. Extend ply sheets over and terminate beyond cants.
1. Embed each ply sheet in cold-applied membrane adhesive applied at rate required by roofing
manufacturer, to form a uniform membrane without ply sheets touching.
3.8 FLASHING AND STRIPPING INSTALLATION
A. Install base flashing over cant strips and other sloping and vertical surfaces, at roof edges, and at
penetrations through roof, and secure to substrates according to built-up roofing manufacturer's written
instructions and as follows:
1. Extend base flashing up walls or parapets a minimum of 12 inches(300 mm)above built-up roofing
and 6 inches (150 mm) onto field of built-up roofing.
2. Prime substrates with asphalt primer if required by built-up roofing manufacturer.
3. Flashing Sheet Application: Adhere flashing sheet to substrate in cold-applied adhesive. Apply cold-
applied flashing sheet adhesive to back of flashing sheet if recommended by roofing manufacturer.
Mechanically fasten top of base flashing securely at terminations and perimeter of roofing.
B. Seal top termination of base flashing with a strip of glass-fiber fabric set in asphalt roofing cement.
C. Install stripping, according to roofing manufacturer's written instructions, where metal flanges and edgings
are set on built-up roofing.
TTSD060917 FOWLER MIDDLE SCHOOL RENOVATION SECTIONPage 07 51913f.1103
BUILT-UP ASPHALT ROOFING, COLD-APPLIED
1. Flashing-Sheet Stripping: Install flashing-sheet stripping in a continuous coating of cold-applied
flashing sheet adhesive, and extend onto roofing membrane.
D. Roof Drains: Set 30-by-30-inch (760-by-760-mm)#4 lead sheet flashing, in bed of asphalt roofing cement
on completed built-up roofing. Cover lead flashing with built-up roofing cap-sheet stripping and extend a
minimum of 6 inches (150 mm) beyond edge of metal flashing onto field of built-up roofing. Clamp built-up
roofing, metal flashing, and stripping into roof-drain clamping ring.
E. Install flashing sheet stripping according to roofing manufacturer's written instructions.
3.9 SURFACING AND COATING INSTALLATION
A. Prior to application of aggregate surfacing system, inspect the finished membrane in presence of
Manufacture and owners representative. Mark all defects and repair prior to application of final surfacing.
B. Aggregate Surfacing: Promptly after installing and testing roofing membrane, base flashing, and stripping,
flood-coat roof surface with cold-applied surfacing adhesive applied at rate required by roofing
manufacturer. Cast the following average weight of aggregate in a uniform course:
1. Aggregate Weight: 250-300 lb./100 sq. ft. (20 kg/sq. m).
C. Apply reflective aluminum coating to base flashings, according to manufacturer's written instructions, by
spray, roller, or other suitable application method at 1 gal per sqr in 2 coat application.
3.10 WALKWAY INSTALLATION
A. Walkway Pads: Install walkway pads using units of size indicated or, if not indicated, of manufacturer's
standard size according to walkway pad manufacturer's written instructions.
1. Sweep away loose aggregate surfacing.
2. Set walkway pads in 5 spot applications of mastic per walk pad.
3.11 FIELD QUALITY CONTROL
A. Roofing Inspector: At Owners discretion, Owner will engage a qualified roofing inspector to perform roof
tests and inspections and to prepare test reports.
B. Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel to inspect roofing
installation at commencement and upon completion.
1. Notify Architect and Owner 48 hours in advance of date and time of inspection.
C. Repair or remove and replace components of built-up roofing where test results or inspections indicate that
they do not comply with specified requirements.
1. Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance
of replaced or additional work with specified requirements.
3.12 PROTECTING AND CLEANING
A. Protect built-up roofing from damage and wear during remainder of construction period. When remaining
construction will not affect or endanger roofing, inspect roofing for deterioration and damage, describing its
nature and extent in a written report, with copies to Architect and Owner.
B. Correct deficiencies in or remove built-up roofing that does not comply with requirements, repair substrates,
and repair or reinstall roofing to a condition free of damage and deterioration at time of Substantial
Completion and according to warranty requirements.
C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures
recommended by manufacturer of affected construction.
3.13 ROOFING INSTALLER'S WARRANTY
A. WHEREAS of , herein called
the"Roofing Installer," has performed roofing and associated work("work") on the following project:
1. Owner:
2. Address:
3. Building Name/Type:
4. Address:
5. Area of Work:
6. Acceptance Date:
7. Warranty Period:
8. Expiration Date:
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 07 51 13.13
060917 Page 10 of 10
BUILT-UP ASPHALT ROOFING, COLD-APPLIED
B. AND WHEREAS Roofing Installer has contracted (either directly with Owner or indirectly as a
subcontractor) to warrant said work against leaks and faulty or defective materials and workmanship for
designated Warranty Period,
C. NOW THEREFORE Roofing Installer hereby warrants, subject to terms and conditions herein set forth, that
during Warranty Period he will, at his own cost and expense, make or cause to be made such repairs to or
replacements of said work as are necessary to correct faulty and defective work and as are necessary to
maintain said work in a watertight condition.
D. This Warranty is made subject to the following terms and conditions:
1. Specifically excluded from this Warranty are damages to work and other parts of the building, and to
building contents, caused by:
a. lightning;
b. peak gust wind speed exceeding 74 mph (120 k/hr);
c. fire;
d. failure of roofing system substrate, including cracking, settlement, excessive deflection,
deterioration, and decomposition;
e. faulty construction of parapet walls, copings, chimneys, skylights, vents, equipment supports, and
other edge conditions and penetrations of the work;
f. vapor condensation on bottom of roofing; and
g. activity on roofing by others, including construction contractors, maintenance personnel, other
persons, and animals, whether authorized or unauthorized by Owner.
2. When work has been damaged by any of foregoing causes, Warranty shall be null and void until such
damage has been repaired by Roofing Installer and until cost and expense thereof have been paid by
Owner or by another responsible party so designated.
3. Roofing Installer is responsible for damage to work covered by this Warranty but is not liable for
consequential damages to building or building contents resulting from leaks or faults or defects of
work.
4. During Warranty Period, if Owner allows alteration of work by anyone other than Roofing Installer,
including cutting, patching, and maintenance in connection with penetrations, attachment of other
work, and positioning of anything on roof, this Warranty shall become null and void on date of said
alterations, but only to the extent said alterations affect work covered by this Warranty. If Owner
engages Roofing Installer to perform said alterations, Warranty shall not become null and void unless
Roofing Installer, before starting said work, shall have notified Owner in writing, showing reasonable
cause for claim, that said alterations would likely damage or deteriorate work, thereby reasonably
justifying a limitation or termination of this Warranty.
5. During Warranty Period, if original use of roof is changed and it becomes used for, but was not
originally specified for, a promenade, work deck, spray-cooled surface, flooded basin, or other use or
service more severe than originally specified, this Warranty shall become null and void on date of said
change, but only to the extent said change affects work covered by this Warranty.
6. Owner shall promptly notify Roofing Installer of observed, known, or suspected leaks, defects, or
deterioration and shall afford reasonable opportunity for Roofing Installer to inspect work and to
examine evidence of such leaks, defects, or deterioration.
7. This Warranty is recognized to be the only warranty of Roofing Installer on said work and shall not
operate to restrict or cut off Owner from other remedies and resources lawfully available to Owner in
cases of roofing failure. Specifically, this Warranty shall not operate to relieve Roofing Installer of
responsibility for performance of original work according to requirements of the Contract Documents,
regardless of whether Contract was a contract directly with Owner or a subcontract with Owner's
General Contractor.
E. IN WITNESS THEREOF, this instrument has been duly executed by:
1. Authorized Signature:
2. Name:
3. Date:
END OF SECTION
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 22 40 00
050317 Page 1 of 4
PLUMBING FIXTURES
PART 1 - GENERAL
1.1 DESCRIPTION
A. The requirements of this section apply to the plumbing fixtures and trim.
B. Provide fixtures as shown on the Drawings and specified herein. Provide all required fixture trim and
accessories for a complete, finished installation.
C. Related Work: The requirements of Section 22 05 00, Common Plumbing Materials and Methods, also
apply to this section.
1.2 QUALITY ASSURANCE
A. Code: Comply with requirements of the Oregon State Plumbing Specialty Code.
B. Fixture color:White unless indicated otherwise.
C. Potable Water Valves: Potable water valves not limited to faucets, mixing valves, or pressure reducing
valves. Valves shall meet NSF Standard 61, Section 9, for drinking water faucets and shall be brass
construction. Brass components which contact water within the faucet shall be from brass which contains
no more than 0.25 percent lead by dry weight.
PART 2- PRODUCTS
2.1 PIPING
A. Piping, fittings, and related items as specified in related Sections 22 10 00.
2.2 PLUMBING FIXTURES AND TRIM
A. Stops: Furnish stop valves for all fixtures. Loose key style, in wall, angle or straight through pattern to fit
installation. Stops to be all brass with full turn brass stem and replaceable washer, no plastic.
Compression nuts to be high copper content brass with lead free certification. IPS inlet connection only.
Finish to be copper nickel chrome plate. Product to carry manufacturer's name. Risers to be chrome
plated copper. Provide chrome plated shallow escutcheons. McGuire, Chicago, Brasskraft, Keeney, Zurn,
or approved substitute.
B. Fixture Traps: Exposed fixture tailpieces, traps, and wastes shall be chrome plated 17 gauge seamless
brass tube with cast brass nuts and deep or box style escutcheons as required to conceal rough piping.
Products to be stamped with manufacturer's name and material gauge. McGuire, Keeney, Zurn, or
approved.
C. Provide handicap piping protector kit on all exposed accessible fixture traps and supplies (I&S Insulation
Co. Inc., Brocar Products Inc. kit 500R, McGuire "Prowrap," Plumberex "Pro-2000"or approved substitute.
D. 1.6 Gallon Flush Water Closet, Flush Valve, Vitreous China, "WC-1": Elongated water closet bowl shall be
designed for 1.6 gallon siphon jet flushing action.
1. Install each listed water closet with the following:
a. Flush Valve: Quiet acting, exposed chrome plated brass with manual no hold open ADA
handle, screwdriver check/control stop with vandal resistant cap, cast wall flange, synthetic
rubber diaphragm, and vacuum breaker, as recommended by closet manufacturer. Provide with
transformers sized to operate up to 6 flush valves or faucets. Sloan Royal 111 Series.
b. Seat: Solid black heavy weight molded plastic seat, with molded in bumpers; open front less
cover for elongated bowl with check and self-sustaining hinge. Hinge and hardware to be 300
series stainless steel. Church 295-SSC, Beneke 523-SS/CH-B, or Bemis 1955 SS/C, Zurn
Z5956SS-EL-STS.
2. Floor Mounted, Top Spud 17" High "WC-1": American Standard 3043.102, Kohler K-4368.
E. Lavatory
1. "LV-1" Faucet: Chrome plated brass body with single temperature metering operation with 0.5 GPM
vandal resistant aerator. ADA compliant push button. Faucet shall be certified low lead, Moen 8884
Series. Provide under counter mixing valve certified to ASSE 1070 or CSA B125.3 and NSF
Standard 61 Watts LF MMV Series or approved equal.
4 L.
TTSD FOWLER MIDDLESCHOOL RENOVATION SECTION 22 40 00
050317 Page 2 of 4
PLUMBING FIXTURES
2. Wall Hung, 20" x 18" Size "LV-1": Enameled Cast Iron Construction with number of holes to match
faucet. Provide with concealed arm hangers and wall backing plate rated for 300 lbs. lavatory edge
load (J.R. Smith, Josam,Wade, Watts, or Zurn). Kohler 2812, or equal American Standard.
F. Drinking Fountain, "DF-1": Wall mounted, 14 gauge water cooler, stainless steel construction, dual
fountain with one fountain equipped for the handicapped with dual side lever or push bar/button operator.
Provide with vandal resistant bottom cover plates, wall mountingplate, stainless steel wall plate, extension
skirt on upper fountain. Compressor shall be R134a refrigerant rated for 8 GPH and powered by 120v.
Elkay EWM 217C. `ee . - a _. - - - - - -- __ - - • .- - - -
Elkay LVRCGRNTL8WSK.bottle filler with drain.
G. Stainless Steel Sinks:
1. Counter Mount: Type 302 or 304 (unless noted otherwise), 18gauge, self-rimming stainless steel
sink,fully undercoated, drawn bowl with satin finish. Elkay numbers are listed;Just is approved.
Install with stainless steel crumb cup strainer outlet or grid strainer, flange tail piece, and 1-1/2"trap.
For faucets, Chicago numbers are listed, and approved only. Sinks shall be punched for faucet
specified. Coordinate number of holes required. Cock hole covers are not allowed. Provide with tail
piece as required for dishwasher or AC condensate drain per drawings.
Location Tag Basin (Elkay) Faucet ADA Strainer,
(Chicago) Disposal, etc.
Science S-4 Elkay 930-GN8B-VB- NoRigid spout.
Student LR 1720 in 316 SS E7-369XK Note#1.
Science S-4A Elkay 930-GN8B-VB- YesRigid Spout.
Student LRAD 1720 in 316 E7-369XK Note#1.
ADA SS with 5.5" Depth
Alternate
Admin S-5 LRAD 2522 786- Yes Grid strainer.
GN8AEVPCAB Note#1.
CP
Note#1: Provide faucet deck re-enforcement per detail on drawings.
2. Wall Mount: Type 304, 14 gauge, stainless steel sink, with satin finish. Elkay numbers are listed;
Just is approved. Install with grid strainer and cast iron P-Trap. For faucets, Chicago numbers are
listed, and approved only. Sinks shall be punched for faucet specified. Coordinate number of holes
required. Cock hole covers are not allowed.
Location Tag Basin (Elkay) Faucet ADA Strainer,
(Chicago) Disposal,etc.
STEM S6 Single Compartment 897-CP No LK173
ESS2319
H. Epoxy Sinks: Drop-in style. Numbers listed are Durcon. Provide with grid strainer outlet to match sink
construction. Include acid resistant P-trap/tail piece to match approved acid resistant piping. For faucets,
Chicago numbers are listed, T& S Brass approved.
Location Tag Basin (Elkay) Faucet ADA Strainer,
(Chicago) Disposal,etc.
Science S-1 D24C 930-GN8B-VB- No Rigid spout, acid
Student E7-317XK Yes waste, acid
S-1A A25 930-GN8B-VB- resistant grid
E7-369XK strainer.
Science S-2 D24C 930-GN8B-VB- No Rigid spout, acid
Instructor E7-369XK waste, acid
resistant grid
strainer. Provide
with EW-1 &
GO-1
TTSD050317 FOWLER MIDDLE SCHOOL RENOVATION SECTIOPage 3N 22 40of 004
PLUMBING FIXTURES
Science S-3 D24C 930-369CP No Rigid
wastespout, acid
Prep
, acid
resistant grid
strainer.
InSinkErator
H990-SS with
Chrome Finish.
Provide with
GO-1.
I. Drains:Zurn, Jay R. Smith, Wade and Mifab. Numbers scheduled on drawings represent minimum
acceptable standard for locations involved.
J. Hose Bibs:
1. "HB-2": "Chicago 952"chrome plated with vacuum breaker and loose key handle or District
Approved Equal.
K. Refrigerator Water Connection, RC-1: Guy Gray BIM 875 or approved.
L. Gas Outlet"GO-1":
1. Chrome Turret mounted outlet with ball valve indexed for gas and serrated outlet. Provide with anti-
rotation locking pit between counter and terret. Chicago 980-909-957-3KAGVCP.
2.3 EMERGENCY FIXTURES
A. Eyewash "EW-1": Provide new unit with stop/shut-off valve. Deck mounted eye wash. Unit shall comply
with ANSI Z358.1 —2014. Dual side by side spray heads with flip to dust cover and internal flow control.
Forged brass squeeze valve activated by stainless steel lever handle to include hands free operation.
Include 6' minimum reinforced PVC hose rated for 300 PSI maximum working pressure. Provide with deck
mounting flange, under-counter hose guide, and in-line dual check backflow preventer. Provide with
under-counter mount tempering valve. Valve shall be certified to ASSE 1071 and be certified to meet low
lead requirements of wetted surface area less than 0.25% lead by weight. Guardian G5022 Series with
G3600LF valve or equal Haws or Encon.
B. Combination Shower/Eyewash, "ES-1":
1. ANSI Z358.1-2009 Compliant. Horizontal supply emergency shower with stainless steel shower
head, galvanized steel pipe, rigid stainless steel operating rod and chrome plated ball valve, and
eyewash with stainless steel bowl, chrome plated ball valve with paddle handle, plastic eyewash
heads with dust cover, pressure compensating stream controller, and emergency fixture sign. Provide
eye-wash with trapped drain connection and wall bracket. Guardian G1902 or equal Encon, Haws
approved.
2. Thermostatic mixing valve (factory set to 85 degrees) for single emergency eye wash. Unit shall
include a built-in cold water by-pass, rough bronze finish, solid bimetal thermostat, locking
temperature regulator with limit stop factory set for 90 degrees, integral check stops, and dial
thermometer and recessed stainless steel cabinet with door and lock.
a. Performance: Unit shall have a flow range of 3-GPM to 44-GPM with a maximum pressure loss
of 20-PSI and come with a full 1-year warranty.
b. Quality Assurance: Unit shall be certified to ASSE 1071. Unit shall be certified to meet Low
Lead requirements of wetted surface area containing less than 0.25% lead by weight.
c. Guardian G3807LF, or equal Haws or Encon.
3. Provide with 120 volt powered flow switch with audible (100dB at 10') alarm and visual (1000 min.
Lumen LED) alarm. Provide with silence switch. Guardian AP275-100 or equal Haws or Encon.
C. Eyewash "EW-2":
1. ANSI Z358.1-2014 Compliant stainless steel bowl and cover, chrome plated ball valve with paddle
handle, plastic eyewash heads with dust cover, pressure compensating stream controller, and
emergency fixture sign. Provide eye-wash with trapped drain connection and wall bracket. Guardian
G1814BC or equal Encon, Haws approved.
2. Provide with recessed wall mounted mount tempering valve. Valve shall be certified to ASSE 1071
and be certified to meet low lead requirements of wetted surface area less than 0.25% lead by
weight. Guardian G3600LF equal Haws or Encon.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 22 40 00
050317 Page 4 of 4
PLUMBING FIXTURES
PART 3 - EXECUTION
3.1 PIPING
A. Install in accordance with Section 22 10 00.
3.2 FIXTURE INSTALLATION AND CONNECTION
A. All exposed fixture hardware and piping shall be plated with polished chrome unless otherwise directed in
these specifications. Where chair carriers or special carrier design are not indicated, provide 3/16"thick by
6"wide steel to waste or vent piping and to available building construction.
B. All fixtures in contact with finished walls and floors shall be caulked with waterproof, white, non-hardening
sealant which will not crack, shrink or change color with age.
C. All fixtures and component parts shall conform to governing codes.
D. All fixtures shall be securely mounted level and plumb or as recommended by the manufacturer. Mount
fixtures intended to be accessible to the handicapped at the dimensions required by code.
3.3 STARTUP
A. Adjust flush valves, pressure reducing valves, mixing valves, water heater thermostats, and similar
equipment.
B. Remove construction protection, tags and labels and thoroughly clean all plumbing equipment and trim.
Scour all fixtures just prior to building acceptance.
END OF SECTION
1
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 05 90
050317 Page 1 of 7
TESTING, ADJUSTING AND BALANCING
PART 1 - GENERAL
1.1 DESCRIPTION
A. Work Included: After completion of the work of installation, test and regulate all components of the new
heating, air conditioning and ventilating systems to verify air volumes and heating-cooling flow rates
indicated on the Drawings.
B. Balancing Organization:
1. Balancing of the Heating and Air Conditioning Systems: Performed by a firm providing this service
established in the State of Oregon.
2. Balancing Organization: Approval by Architect. Air Balancing Specialties, Neudorfer Engineers,
Northwest Engineering Services, Pacific Coast Air Balancing, Precision Test& Balance, or approved.
3. Provide all necessary personnel, equipment, and services.
C. Balancer shall perform work as a Contractor to the General Contractor directly, not through the Mechanical
Contractor.
1.2 QUALITY ASSURANCE
A. Balancing of the Heating and Air Conditioning Systems: Agency shall be a current member of NEBB or
AABC specializing in the adjusting and balancing of systems specified with a minimum of 10 years
documented experience.
B. Testing, adjusting, and balancing shall be performed under direct field supervision of a Certified NEBB
Supervisor or a Certified AABC Supervisor.
C. See Commissioning Specification for additional requirements.
1.3 SUBMITTALS
A. See Section in Division 1, Administrative Requirements, for submittal procedures.
B. Submit name of adjusting and balancing agency for approval within 30 days after award of Contract.
C. Field Reports: Indicate deficiencies in systems that would prevent proper testing, adjusting, and balancing
of systems and equipment to achieve specified performance.
1. Submit under provisions of Section 230500.
2. Prior to commencing work, submit report forms or outlines indicating adjusting, balancing, and
equipment data required.
3. Submit draft copies of report for review prior to final acceptance of Project. Provide final copies for
Architect and for inclusion in operating and maintenance manuals.
4. Provide reports in soft cover, letter size, 3-ring binder manuals, complete with index page and
indexing tabs, with cover identification at front and side. Include set of reduced drawings with air
outlets and equipment identified to correspond with data sheets, and indicating thermostat locations.
5. Include detailed procedures, agenda, sample report forms, and copy of AABC National Project
Performance Guaranty or other certifying agency prior to commencing system balance.
6. Test Reports: Indicate data on AABC MN-1 forms, forms prepared following ASHRAE 111, NEBB
forms, or forms containing information indicated in Schedules.
7. Include the following on the title page of each report:
a. Name of testing, adjusting, and balancing agency.
b. Address of testing, adjusting, and balancing agency.
c. Telephone number of testing, adjusting, and balancing agency.
d. Project name.
e. Project location.
f. Project Architect and Owner.
g. Project Engineer.
h. Project Contractor.
i. Project altitude.
j. Report date.
D. Project Record Documents: Record actual locations of flow measuring stations and balancing valves and
rough setting.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 05 90
050317 Page 2 of 7
TESTING, ADJUSTING AND BALANCING
E. Provide a list of equipment, air supply, return and exhaust, heating water, and chilled water systems not in
compliance with tolerances subsequently specified.
PART 2 - PRODUCTS
-- NOT USED --
PART 3 - EXECUTION
3.1 EXAMINATION
A. Verify that systems are complete and operable before commencing work. Ensure the following conditions:
1. Systems are started and operating in a safe and normal condition.
2. Temperature control systems are installed complete and operable.
3. Proper thermal overload protection is in place for electrical equipment.
4. Final filters are clean and in place. If required, install temporary media in addition to final filters.
5. Duct systems are clean of debris.
6. Fans are rotating correctly.
7. Fire and volume dampers are in place and open.
8. Air coil fins are cleaned and combed.
9. Access doors are closed and duct end caps are in place.
10. Air outlets are installed and connected.
11. Duct system leakage is minimized.
12. Hydronic systems are flushed, filled, and vented.
13. Pumps are rotating correctly.
14. Proper strainer baskets are clean and in place.
15. Service and balance valves are open.
B. Submit field reports. Report defects and deficiencies noted during performance of services which prevent
system balance.
C. Beginning of work means acceptance of existing conditions.
3.2 INSTALLATION TOLERANCES
A. Air Handling Systems: Adjust to within plus 10 percent or minus 5 percent of design for supply systems
and +/- 10 percent of design for return and exhaust systems.
B. Air Outlets and Inlets: Adjust total to within plus 10 percent or minus 5 percent of design to space. Adjust
outlets and inlets in space to within +/- 10 percent of design.
C. Hydronic Systems: Adjust to within +/- 10 percent of design.
3.3 ADJUSTING
A. Ensure recorded data represents actual measured or observed conditions.
B. Permanently mark settings of valves, dampers, and other adjustment devices allowing settings to be
restored. Set and lock memory stops.
C. After adjustment, take measurements to verify balance has not been disrupted or that such disruption has
been rectified.
D. Leave systems in proper working order, replacing belt guards, closing access doors, closing doors to
electrical switch boxes, and restoring thermostats to specified settings.
E. At final inspection, recheck random selections of data recorded in report. Recheck points or areas as
selected and witnessed by the Owner.
3.4 AIR SYSTEM PROCEDURE
A. Adjust air handling and distribution systems to provide required or design supply, return, and exhaust air
quantities.
B. Make air quantity measurements in ducts by Pitot tube traverse of entire cross sectional area of duct.
C. Measure air quantities at air inlets and outlets.
D. Adjust noise distribution system to obtain uniform space temperatures free from objectionable drafts and
noise.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 05 90
050317 Page3of7
TESTING, ADJUSTING AND BALANCING
E. Use volume control devices to regulate air quantities only to the extent that adjustments do not create
objectionable air motion or sound levels. Effect volume control by duct internal devices such as dampers
and splitters.
F. Vary total system air quantities by adjustment of fan speeds. Provide drive changes required. Vary branch
air quantities by damper regulation.
G. Provide system schematic with required and actual air quantities recorded at each outlet or inlet.
H. Measure static air pressure conditions on air supply units, including filter and coil pressure drops, and total
pressure across the fan. Make allowances for 50 percent loading of filters.
I. Adjust outside air automatic dampers, outside air, return air, and exhaust dampers for design conditions.
J. Measure temperature conditions across outside air, return air, and exhaust dampers to check leakage.
K. Where modulating dampers are provided, take measurements and balance at extreme conditions.
Balance variable volume systems at maximum air flow rate, full cooling, and at minimum air flow rate, full
heating.
L. Measure building static pressure and adjust supply, return, and exhaust air systems to provide required
relationship between each to maintain approximately 0.02" (12.5 Pa) positive static pressure near the
building entries.
M. For variable air volume system powered units, set volume controller to air flow setting indicated. Confirm
connections are properly made and confirm proper operating for automatic variable air volume temperature
control. Adjust drives to maximum airflow for highest static condition (maximum amps of motor). Allow
VFD to regulate airflow per specification.
N. Space pressure Control, Return Fan Speed Endpoints AHU-1 to 3 & 5. For variable air volume system
with terminal unit zoning, attain return fan speed control endpoints based on the following values for the
given operating mode. Coordinate with the HVAC control contractor for system setup and provide values
when determined.
Return Fan Speed Endpoint Values
Supply Fan Desired Space
Mode Speed Hi/Lo Pressure Economizer Return Fan
Reset Limits (InH2O) Position Speed
Full Heating (All
terminal units are TBD—Noted Ideal -0.02 Min Min (25%
during the full Acceptable of the minimum Minimum
operating at Return Fan
heating flow heating Test Range: ventilation
set points condition 0.01 —0.03 requirement) Speed TBD
p )
Full Cooling (All TBD—Noted Ideal -0.02 Min Max
terminal units are (100% of the Maximum
operating at during the full Acceptable
cooling Test Range: minimum Return Fan
cooling flowventilation Speed-TBD
setpoints) condition 0.01 —0.03
requirement)
O. CO2 controller set points—minimum CO2 setpoint (ppm), maximum CO2 setpoint (ppm)(setting for min
OSA at full occupancy).
P. Outside air intake damper settings at minimum CO2 and maximum CO2 setpoint.
3.5 WATER SYSTEM PROCEDURE
A. Adjust water systems to provide required or design quantities. This includes domestic HVAC systems.
B. Use calibrated Venturi tubes, orifices, or other metered fittings and pressure gauges to determine flow
rates for system balance. Where flow metering devices are not installed, base flow balance on
temperature difference across various heat transfer elements in the system.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 05 90
050317 Page4of7
TESTING, ADJUSTING AND BALANCING
C. Adjust systems to provide specified pressure drops and flows through heat transfer elements prior to
thermal testing. Perform balancing by measurement of temperature differential in conjunction with air
balancing.
D. Effect system balance with automatic control valves fully open to heat transfer elements.
E. Effect adjustment of water distribution systems by means of balancing cocks, valves, and fittings. Do not
use service or shut-off valves for balancing unless indexed for balance point.
F. Where available pump capacity is less than total flow requirements or individual system parts, full flow in
one part may be simulated by temporary restriction of flow to other parts.
G. Where automatic flow control valves are installed (Dynamic devices, not circuit setters) record listed flow
rate of device based on field verification. Testing is not required.
H. Balancing contractor shall be trained on balancing procedures by certified representative of differential
pressure control valves.
3.6 SCHEDULES
A. Equipment Requiring Testing, Adjusting, and Balancing:
1. Plumbing pumps
2. HVAC pumps
3. Forced air furnaces
4. Air cooled water chillers
5. Packaged rooftop heating/cooling units
6. Air coils
7. Air handling units
8. Fans
9. Air filters
10. Air terminal units
11. Air inlets and outlets
B. Report:
1. Summary Comments:
a. Design versus final performance
b. Notable characteristics of system
c. Description of systems operation sequence
d. Summary of outdoor and exhaust flows to indicate amount of building pressurization
e. Nomenclature used throughout report
f. Test conditions
2. Instrument List:
a. Instrument
b. Manufacturer
c. Model number
d. Serial number
e. Range
f. Calibration date
C. Electric Motors:
1. Manufacturer
2. Model/frame
3. HP/BHP
4. Phase, voltage, amperage; nameplate, actual, no load
5. RPM
6. Service factor
7. Starter size, rating, heater elements
8. Sheave make/size/model
D. V-Belt Drives:
1. Identification/location
2. Required driven RPM
3. Driven sheave, diameter, and RPM
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 05 90
050317 Page 5 of 7
TESTING, ADJUSTING AND BALANCING
4. Belt, size, and quantity
5. Motor sheave diameter and RPM
6. Center to center distance, maximum, minimum, and tested
E. Pumps:
1. Identification/number
2. Manufacturer
3. Size/model
4. Impeller
5. Service
6. Design flow rate, pressure drop, BHP
7. Actual flow rate, pressure drop, BHP
8. Discharge pressure
9. Suction pressure
10. Total operating head pressure
11. Shut off, discharge, and suction pressure
12. Shut off, total head pressure
F. Refrigerant Cooling Coils:
1. Identification/number
2. Location
3. Service
4. Manufacturer
5. Air flow, design and actual
6. Entering air DB temperature, design and tested
7. Entering air WB temperature, design and tested
8. Leaving air DB temperature, design and tested
9. Leaving air WB temperature, design and tested
10. Air pressure drop, design and tested
11. Saturated suction temperature, design and tested
G. Heating & Chilled Water Coils:
1. Identification/number
2. Location
3. Service
4. Manufacturer
5. Air flow, design and tested
6. Water flow, design and tested
7. Water pressure drop, design and tested
8. Entering water temperature, design and tested
9. Leaving water temperature, design and tested
10. Entering air temperature, design and tested
11. Leaving air temperature, design and tested
12. Air pressure drop, design and tested
H. Air Moving Equipment:
1. Location
2. Manufacturer
3. Model number
4. Serial number
5. Arrangement/Class/Discharge
6. Air flow, specified and tested
7. Return air flow, specified and tested
8. Outside air flow, specified and tested
9. Total static pressure (total external), specified and tested
10. Inlet pressure
11. Discharge pressure
12. Sheave make/size/bore
13. Number of Belts/Make/Size
14. Fan RPM
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 05 90
050317 Page6of7
TESTING, ADJUSTING AND BALANCING
I. Return Air/Outside Air:
1. Identification/location
2. Supply air flow, design and tested
3. Return air flow, design and tested
4. Outside air flow, design and tested
5. Return air temperature
6. Outside air temperature
7. Mixed air temperature, design and tested
J. Exhaust Fans:
1. Location
2. Manufacturer
3. Model number
4. Serial number
5. Air flow, specified and tested
6. Total static pressure (total external), specified and tested
7. Inlet pressure
8. Discharge pressure
9. Sheave Make/Size/Bore
10. Number of Belts/Make/Size
11. Fan RPM
K. Duct Traverses:
1. System zone/branch
2. Duct size
3. Area
4. Design velocity
5. Design air flow
6. Test velocity
7. Test air flow
8. Duct static pressure
9. Air temperature
10. Air correction factor
L. Terminal Unit Data:
1. Manufacturer
2. Type, constant, variable, single, dual duct
3. Identification/number
4. Location
5. Model number
6. Size
7. Minimum static pressure
8. Minimum air flow, design and tested
9. Maximum air flow, design and tested
10. Inlet static pressure, design and tested
M. Air Distribution Tests:
1. Air terminal number
2. Room number/location
3. Terminal type
4. Terminal size
5. Area factor
6. Design velocity
7. Design air flow
8. Test (final) velocity
9. Test (final) air flow
10. Percent of design air flow
3.7 DETAILED REQUIREMENTS
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 05 90
050317 Page 7 of 7
TESTING, ADJUSTING AND BALANCING
A. Adjusting and Balancing:
1. Adjust and balance all portions of the mechanical systems to produce indicated results within limits of
minus 5 or plus 10 percent or as subsequently directed by the Architect.
2. Balancing data may be spot checked with instruments similar to that used by the balancing firm.
3. If, in the judgment of the Architect, the discrepancies warrant additional adjustment, readjust and
rebalance the systems at no additional project cost.
B. Duct Pressure Test: To be conducted and/or witnessed by balancer.
END OF SECTION
R •
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 07 00
050317 Page 1 of 4
HVAC INSULATION
PART 1 - GENERAL
1.1 DESCRIPTION
A. The requirements of this section apply to the insulation of mechanical equipment specified elsewhere in
these specifications.
B. Related Work: The requirements of Section 23 05 00, Common HVAC Materials and Methods, also apply
to this section.
1.2 QUALITY ASSURANCE
A. Insulation Thickness and Thermal Performance: Comply with provisions of the State of Oregon Energy
Code.
B. Composite (Insulation, Jacket or Facing and Adhesives) Fire and Smoke Hazard Ratings: Not to exceed a
flame spread of 25 or smoke development of 50 and containing less than 0.1% by weight deca-PDE fire
retardant.
C. Component Ratings of Accessories (Adhesives, Mastics, Cements, Tapes, Finishing Cloth for Fittings):
Same as "B" requirements above and permanently treated. No water soluble treatments.
1.3 PRODUCT DELIVERY, STORAGE AND HANDLING
A. General: In addition to the requirements specified in Section 22 05 00, the following apply:
1. Deliver insulation, coverings, cements, adhesives and coatings to the site in factory-fabricated
containers with the manufacturer's stamp or label affixed showing fire hazard ratings of the products.
Store insulation in original wrappings and protect from weather and construction traffic.
2. Protect insulation against dirt, water, chemical and mechanical damage. Do not install damaged
insulation. Remove such insulation from project site.
1.4 SUBMITTALS
A. Submit catalog data and performance characteristics for each product specified.
PART 2 - PRODUCTS
2.1 ACCEPTABLE MANUFACTURERS
A. Insulating Manufacturers: Johns Manville, Knauf, Armstrong, Owens-Corning, Pittsburgh Corning, Pabco,
lmcoa or Certain Teed. Johns Manville products are listed unless indicated otherwise.
B. Adhesive Manufacturers: Foster, 3M, Insul-Coustic, Borden, Kingco or Armstrong.
2.2 PIPING INSULATION
A. Interior and Exterior Piping Systems 50 to 850 Deg. F: Glass fiber preformed pipe insulation with a
minimum K-value of 0.23 at 75 Deg. F, a minimum density of 3.5 pounds per cubic foot within all-service
vapor barrier jacket, vinyl or pre-sized finish and pressure sensitive seal containing less than 0.1% by
weight deca-PDE fire retardant.
B. Exterior Installations: Same as for interior installations except 0.016"aluminum finish jacket.
C. Pipe Temperatures Minus 30 to 180 Deg. F: Flexible, preformed, pre-slit, self-sealing elastomeric pipe
insulation up to 2-1/8" ID, thermal conductivity of 0.27 BTU/hr. sq. ft./in. at 75 deg. F and vapor
transmission rating of 0.2 perms/inch. Apply in thickness necessary to prevent condensation on the
surface at 85 deg. F and 70% RH. Armstrong "Armaflex 2000"or, in concealed locations, Imcoa or
Nomaco also approved.
D. _ - -- - - - - - - - - - - - - - ".
€.D. Interior Piping Systems 32 to 50 Deg. F: Glass fiber preformed pipe insulation with a minimum K-value of
0.23 at 75 deg. F, a minimum density of 3.5 pounds per cubic foot. Polymer vapor barrier jacket containing
less than 0.1% by weight deca-PDE fire retardant and with pressure sensitive seal and wicking system to
remove condensation from pipe surface. Owens Corning "VaporWick."
2.3 DUCT INSULATION
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 07 00
050317 Page 2 of 4
HVAC INSULATION
A. Interior Above Grade Ductwork: Glass fiber formaldehyde-free blanket with "FSK"facing, k value = 0.31 at
75 deg. F, 0.2 perms, and UL 25/50 surface burning rating. Johns Manville "Microlite."
2.4 EQUIPMENT INSULATION
A. Equipment Temperatures Below 70 Deg. F: Flexible, closed cell, elastomeric sheet insulation of 5.5
#/cubic feet density and 0.27 thermal conductivity at 75 deg. F. Armstrong "Armaflex."
B. Equipment Temperatures From 70 to 450 Deg. F: Glass fiber 3 pound density insulation with a 0.23
thermal conductivity at 75 deg. F. Johns Manville "814 Spin-Glas"with "FSK"jacket containing less than
0.1%by weight deca-PDE fire retardant or finished as recommended by manufacturer.
2.5 INSULATION ACCESSORIES
A. Insulation Compounds and Materials: Provide rivets, staples, bands, adhesives, cements, coatings,
sealers, welded studs, etc., as recommended by the manufacturers for the insulation and conditions
specified except staples not permitted on chilled water lines.
B. Interior Tanks and Equipment Insulation Covering: Finished metal jacket or as recommended by the
manufacturer for insulation material specified.
C. PVC Protective Jacketing and Valve and Pipe Fitting Covers: Johns Manville Zeston 2000, Proto
LoSmoke, or Ceel-Co Ceel-Tite 100 Series with precut fitting fiberglass insulation or approved.
D. Jacket Lap Sealing Adhesives: Foster Drion 85-75 contact cement or approved substitute.
E. Saddles and Shields: Unless otherwise indicated and except as specified in piping system specification
sections, install the following types:
1. Steel Pipe-Covering Protection Saddles (MSS Type 39): To fill interior voids with insulation that
matches adjoining insulation.
2. Protection Shields (MSS Type 40): Of length recommended by manufacturer to prevent crushing
insulation.
3. Thermal-Hanger Shield Inserts: For supporting insulated pipe, 360-degree insert of high-density,
100-psi (690-kPa) minimum compressive strength, water-repellent-treated calcium silicate or cellular-
glass pipe insulation, same thickness as adjoining insulation with vapor barrier and encased in 360-
degree sheet metal shield.
PART 3- EXECUTION
3.1 PIPING INSULATION
A. General: Do not insulate underground piping except at joints and fittings on preinsulated piping unless
indicated otherwise.
B. Heating Water Piping: Insulate with glass fiber pipe covering:
Size Thickness
1/2"to 1-1/2" 1-1/2"
2"to 3" 2"
4" and larger 2-1/2"
C. Chilled Water Piping: Above grade insulate with glass fiber pipe covering:
Size Thickness
1/2"to 1-1/2" 1-1/2"
2"to 3" 2"
4" and larger 2-1/2"
D. Refrigerant Piping Insulation: Insulate suction piping with minimum 1/2"thick foamed plastic or of
thickness necessary to prevent condensation at 85 deg. F and 70% RH. Where possible, slip insulation
over the piping as it is installed. Seal all joint and seams.
E. Pipe Fittings:
1. Insulate and finish all fittings including valve bodies, bonnets, unions, flanges and expansion joints
with precut fiberglass insulation and preformed PVC covers sealed to adjacent insulation jacket for
continuous vapor barrier covering over all fittings.
2. Provide removable/reusable insulation covers on 4" and larger valves, unions, flanges, pump
casings, strainers and similar fittings or equipment requiring periodic service.
• 1
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 07 00
050317 Page 3 of 4
HVAC INSULATION
F. Protective Covering: Install continuous protective PVC or metal covering on all piping and fittings in
mechanical rooms below 8' AFF, and where insulation may be subject to damage. Install with rivets or
cement seams and joints.
G. Insulated Piping: Comply with the following.
1. Attach clamps and spacers to piping.
a. Piping Operating above Ambient Air Temperature: Clamp may project through insulation.
b. Piping Operating below Ambient Air Temperature: Use thermal-hanger shield insert with clamp
sized to match OD of insert.
c. Do not exceed pipe stress limits according to ASME B31.9.
2. Install MSS SP-58, Type 39 or Type 40 protection saddles, if insulation without vapor barrier is
indicated. Fill interior voids with insulation that matches adjoining insulation.
a. Thermal-hanger shield inserts may be used. Include steel weight-distribution plate for pipe NPS
4 (DN100) and larger if pipe is installed on rollers.
3. Shield Dimensions for Pipe: Not less than the following.
a. NPS 1/4 to NPS 3-1/2 (DN8 to DN90): 12 inches (305 mm) long and 0.048 inch (1.22 mm)
thick.
b. NPS 4 (DN100): 12 inches (305 mm) long and 0.06 inch (1.52 mm) thick.
c. NPS 5 and NPS 6 (DN125 and DN150): 18 inches (457 mm) long and 0.06 inch (1.52 mm)
thick.
d. NPS 8 and NPS 14 (DN200 and DN350): 24 inches (610 mm) long and 0.075 inch (1.91 mm)
thick.
e. NPS 16 and NPS 24 (DN400 and DN600): 24 inches (610 mm) long and 0.105 inch (2.67 mm)
thick.
4. Pipes NPS 8 (DN200) and Larger: Include wood inserts.
5. Insert Material: Length at least as long as protective shield.
6. Thermal-Hanger Shields: Install with insulation same thickness as piping insulation.
H. Piping Insulation Lap Seams and Butt Joints: Install insulation jacket in accordance with manufacturer's
recommendation. Where jacket joint and lap seams have not adhered, remove affected section of
insulation and reinstall or apply lap sealing adhesive in accordance with manufacturer's instructions.
3.2 DUCTWORK INSULATION
A. Ductwork: Insulate the following:
1. All supply ductwork.
2. All supply and return ductwork in systems routed in unconditioned spaces or exposed to the outside
conditions.
3. All outside air intake ducts.
4. All ductwork required to be insulated by code.
5. All relief ducts.
B. Insulation Thickness: Select board and blanket insulation of thickness required to provide the following
installed R-value.
1. All heating or cooling system supply and return ducts located on the exterior of the insulated building
envelope and all outside air intake ducts.
a. R-8
2. All heating and cooling system supply ducts located inside of building envelope or in unconditioned
spaces, R-5.
3. All heating and cooling system return ducts located in vented spaces, R-8.
C. Fittings: Wire and duct adhesive as required. To prevent sagging on all rectangular or square ducts over
24"wide, install Gramweld or equal welding pins on the bottom. Maximum spacing 18"on center in both
directions.
D. Installation: Applied with butt joints, all seams sealed with vapor seal mastic or taped with 2" wide vapor-
proof, pressure-sensitive tape. Seal all penetrations with vapor barrier adhesive.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 07 00
050317 Page 4 of 4
HVAC INSULATION
E. Internally Lined Ductwork: Where internally lined ductwork is indicated on the Drawings and/or specified,
no exterior insulation is required. Select duct lining to provide the required R-value. Carefully lap the ends
of the exterior insulation a minimum of 6" past the interior insulation unless otherwise shown. Seal the end
of vapor barrier jacket to the duct with mastic where the vapor barrier is required. Duct lining is specified in
Section 23 30 00.
3.3 EQUIPMENT ROOM ITEMS
A. Materials:
1. 1-1/2" calcium silicate blocks applied with wire or bands as required. Finish with 1/2"thick smoothing
coat of insulating cement and with glass cloth.
2. For equipment and piping systems operating below 350 deg. F., a 3 pound per cubic foot, 1-1/2"thick
spun glass fiber blanket with organic binders and aluminum sheet metal exterior jacket may be
substituted for the above insulation.
3. Install tank head finish per manufacturer's recommendations.
3.4 EXPANSION JOINTS
A. Insulation: Insulate expansion joints on heating and/or cooling piping to match thickness of adjacent
piping. Build up piping insulation adjacent to the expansion joints sufficiently to allow internal clearance
within the insulation for the diameter of the expansion joint. Fasten one end of the expansion joint
insulation securely and provide aluminum or sheet metal on the built-up insulation at the other end to
permit movement of the insulation without damage.
B. Finish: Finish as specified for adjacent piping with fireproof covering.
END OF SECTION
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 09 23
050317 Page 1 of 21
DDC CONTROLS
PART 1 - GENERAL SYSTEM DESCRIPTION
1.1 GENERAL REQUIREMENTS
A. Drawings and general provisions of the Contract, including General and other Conditions and other
Division 1 General Requirements sections, apply to the work specified in this Section.
1.2 BASIC SYSTEM
A. Under base bid Building Automation System (BAS) system shall utilize DDC to control valve and damper
actuators for all new mechanical equipment shown in the drawings for all systems.
B. Under alternate#1 remove all remaining pneumatic control devices. This includes pneumatic control
valves, control dampers, P-E relays, compressor, dryer and all exposed pneumatic tubing or piping in
mechanical rooms. Replace control devices with digital devices and connect to existing Johnson Controls
International N2 system. Provide all piping, insulation, balancing and control design materials and labor to
complete this work. See mechanical drawings and control specifications for devices and additional
information.
C. At the building level expand the existing JCI NZ N2 system. Replace the existing JCI-NAE and salvage to
Owner. Install JACE FX device to serve as building level controller. JACE FX shall tie to District level
Tridium Niagara operating N-R N4 platform software via District Ethernet.
D. The system shall include all control unit hardware and software, operator input/output devices, sensors,
control devices, and miscellaneous devices required for complete operation and future modifications.
Documentation for all software and hardware devices shall be provided.
E. Provide engineering, installation, calibration, commissioning, acceptance testing assistance, software
programming, and checkout for complete and fully operational DDC.
1.3 SCOPE OF SERVICES (OVERVIEW)
A. Work under this section is related to the new equipment and systems. Work under this section of the
specification shall include, but not limited to, the following:
1. Furnish and install a complete sensor, actuator, wiring and piping system for all modified or new air
handling and related equipment as shown on the plans and specified in this section. Install all
necessary sensors and actuators as required by the plans and specifications and equipment
schedules. Coordinate installation of factory mounted controls. Factory mounted devices except for
valves and damper actuators to match manufacturer of control system.
2. Label all sensors, control devices, and control units.
3. Furnish and install conduit, wire, branch circuit protection, etc. as required to bring 120 VAC power to
control panel locations and equipment (actuators, sensors, control devices, etc.) as shown on the
drawings and described in the specifications. Provide surge protection for each line power source.
4. All line drivers, signal boosters, and signal conditioners etc. shall be provided as necessary for proper
data communication.
5. Coordination as required with other sections of the specification for the proper and complete
installation of the wiring and tubing system, control devices, dampers, valve, actuators, etc.
6. Furnish and install Direct Digital Control Equipment (DDC) as required by the point list, plans, and
specifications including, control units, software, database development, check-out, and debugging.
Provide points necessary for a complete and operable system.
7. Install the sequence of operations agreed to by Owner and Engineer.
8. Upgrade system front end to JACE FX. Revise all sequences programming, graphics, and software
set-up as required per these specifications and District standards.
9. Software testing requirements shall include testing in the field of all logic sequences including actual
simulation of different processes and events and observing program response to the process or
event. All deviations from the requirements of the sequence as specified on the drawings or this
specification shall be corrected immediately at no additional cost to the Owner.
10. Provide documentation of software system testing before acceptance testing.
11. Provide staff for acceptance testing procedures. Modify hardware and software errors/problems at no
additional cost to the Owner.
12. Provide a series of training classes for Owner staff; 4 hours of training shall be included for this
project(s). Future 12 hours of training for this project or others shall be included.
13. Setup trending data before and after system acceptance.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 09 23
050317 Page 2 of 21
DDC CONTROLS
14. Attend a series of meetings with the Engineer and Owner to agree on system setup and operating
parameters.
15. Provide detailed documentation of system configuration including control units and all control devices.
16. Provide a list of only the control devices that the Control Contractor cannot purchase. Those devices
are to be purchased by the Owner and provided to the control contractor.
17. Read this section in its entirety for specific details.
1.4 QUALITY ASSURANCE
A. Johnson Controls approved Installer.
1. Johnson Controls branch office in Milwaukie, Oregon.
2. Northwest Control Contractor, Milwaukie, Oregon.
B. All products proposed for this contract shall have been in continuous and successful use for at least two (2)
year(not including beta testing).
C. All materials and equipment used shall be standard components, regularly manufactured for this and/or
other systems and not custom designed especially for this project.
D. Note: Equipment (controllers and software) should be provided by single manufacturer. All other products
(e.g., sensors, valves, dampers, and actuators) need not be manufactured by the control manufacturer.
E. System shall be web based for control system.
1.5 RELATED SECTIONS
A. Drawings and general provisions of Contract, including General and Supplementary Conditions,
Mechanical Special Conditions, Electrical Special Conditions and Division - 1 Specification.
B. Coordination with Other Trades:
1. This section specifies cooperation of the Control Contractor (the combination of installer and
programmer hence forth) with other trades and including balancing firm to assure proper arrangement
of control items. Control valves, dampers, wiring, thermostat wells, and other control devices that are
to be built into the field assembled ductwork, piping, or wiring systems shall be furnished by the
Control Contractor and installed under other sections of the specification as directed by the Control
Contractor and indicated in other portions of the specifications and drawings.
2. The Control contractor shall insure that the DDC system communicates successfully with other
equipment (e.g., air handling units, packaged rooftop units, heat pumps, motors, actuators, etc.).
Note: the equipment supplier is responsible for the proper performance of their equipment (assuming
the proper signal are sent/received from the BAS). The control contractor is responsible for all
system sensors, including those which are factory installed.
3. Electrical Wiring: All wiring required for work under this section of the specification shall be provided
under this section of the specification unless otherwise specified.
4. Electrical wiring - power for control panels, control devices, and sensors
a. Power for control units, control devices and sensors shall be coordinated with the air handling
manufacturer for the project and/or the Owner.
b. Contact locations in starter control circuits. All contacts controlling motor starters, including
overload contacts, shall be located on the hot side of the coil (ungrounded control power leg).
Coordinate this requirement with the air handling manufacturer for the project.
c. Extend power to damper actuators.
1) Actuators will be powered at 24 VAC.
2) At each auxiliary panel location, furnish and install a 24 VAC transformer with 20 VA of
capacity for each actuator installed and served from the panel.
3) Furnish and install a fused terminal in the +24 VAC lead and a disconnecting terminal in
the neutral lead of the power cable to each actuator.
5. Testing, Adjusting and Balancing: The Controls Contractor shall operate the BAS to assist the TAB
Contractor. Provide adequate time to assist and train balancer on operation of system so all portions
of the system can be balanced and information required by Section 230923 can be provided.
C. Commissioning: Provide services as required to complete commissioning services.
1.6 QUALITY CONTROL—CODES AND STANDARDS
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A. All work, materials, and equipment shall comply with the rules and regulations of all codes and ordinances
of the local, state, and federal authorities. Such codes, when more restrictive, shall take precedence over
these plans and specifications, As a minimum, the installation shall comply with the current editions in
effect 30 days prior to receipt of bids for the following codes:
1. National Electric Code (NEC)
2. Uniform Building Code (UBC), Oregon Structural Specialty Code
3. Uniform Mechanical Code (UMC), Oregon Mechanical Specialty Code
4. Underwriters Laboratories (UL)
5. National Electric Manufacturers'Association (NEMA)
6. National Fire Prevention Association (NFPA)
7. American Society Of Heating, Refrigeration, And Air Conditioning Engineers (ASHRAE)
8. Instrument Society Of America (ISA)
9. National Institute of Standards and Technology (NIST).
B. Meet all of the local authorities and State Fire Marshal code requirements for normal operating and smoke
mode functions.
1.7 SUBMITTALS
A. Shop drawing submittals are required for the following, in accordance with Section 230500. The Contractor
shall not start the project until the Shop Drawings have been submitted and approved. Shop drawings
shall include:
1. All submittals should be provided on paper(with legible font type and size).
2. All drawings should be labeled TC (temperature control) rather than being referenced within the
mechanical or electrical divisions. Sheets shall be consecutively numbered. Under alternate Owner
will provide pdf version of control work drawing when Johnson Control system was installed in 2004.
Alter system drawings to reflect changes.
3. One drawing per air handler or system (e.g., boiler plant). Drawing should include point descriptors
(DI, DO, AI, AO), addressing, and point names. Each point names should be unique (within a system
and between systems). For example, the point named for the mixed air temperature for AH#1, AH
#2, and AH #3 should not be MAT but could be named AH #1 MAT, AH #2 MAT, and AH #3 MAT.
The point names could be logical and consistent between systems and AHs. The abbreviation or
short hand notation (e.g., MAT) should be clearly defined in writing by the Control Contractor.
Naming standard will be decided on during meeting between Engineer, Control Contractor, and
Owner.
4. DDC System architecture diagram indicating schematic location of all Control Units, workstations,
LAN Interface devices, gateways, etc. Indicate address and type for each Control Unit, Indicate
protocol, baud rate, and type of LAN (per Control Unit).
5. For each drawing, include a schematic flow diagram of each air and water system showing fans,
coils, dampers, valves, pumps, heat exchange equipment, control devices, etc. Label each control
device with setting or adjustable range of control. Label each input and output with the appropriate
range.
6. Electrical wiring diagrams shall include both ladder logic type diagrams for motor start, control, and
safety circuits and detailed digital interface panel control point termination diagrams with all wire
numbers and terminal block numbers identified. Indicate all required electrical wiring. Provide panel
termination drawings on separate drawings. Ladder diagrams shall appear on system schematic.
Clearly differentiate between portions of wiring that are existing, factory-installed and portions to be
field-installed.
7. Show all electric connections of the controls system to equipment furnished by others complete to
terminal points identified with manufacturer's terminal recommendations.
8. Control Contractor shall provide one complete drawing that shows the equipment (fan unit, boiler,
chiller, etc.) manufacturers wiring diagram with the control contractors wiring diagram superimposed
on it. Supply hard copy.
9. Complete identification of all control devices (manufacturer's type, number, and function).
10. Provide sequence of operation for each type of system.
11. Damper schedule should include:
a. Action (normally open or closed)
b. Direct or reverse actuation
c. Manufacturer make and model
d. Damper size
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e. Damper torque required based on damper size
f. Damper torque required based on specification.
g. Actuator requirements
h. Actuator spring range
i. Special construction features (U.L. listed smoke damper, etc.)
12. A set of drawings showing the details of the valve and valve actuator installation for each valve,
required for operation and maintenance manuals only. This should include:
a. Action (normally open or closed)
b. Manufacturer make and model
c. Close off rating
d. Flow rate
e. Actuator spring range
f. Cavitation coefficient (where applicable)
g. Special construction features
13. Provide graphic screen for each typical HVAC unit.
B. Record Documents:
1. Provide a complete set of control drawings with as-installed equipment and operating sequences on
paper and in electronic format (AutoCAD). "As-built" (i.e., as-installed and debugged and after system
acceptance) documentation shall include the following as minimum:
a. All data specified in the shop drawings section in its final "as-built"form.
b. Schematic outline of the overall control system for quick reference
c. Adequate record of the work as installed, including exact location of control panels and the
wiring route (using TC documents, section 1.8-3).
d. Blue prints shall include sequence of operation.
e. System hardware specification data which provides a functional description of all hardware
components.
f. System engineering information which provides all of the information for the system set-up,
definition and application.
g. System database information that provides the point names and application data programmed
into the system.
h. All of the information, data, procedures and drawings shall be supplied in the form of manuals.
2. Provide as-installed (after system acceptance) control logic diagrams showing all points (real and
virtual).
3. DDC systems that use line-based programming must reference line code number with control logic
diagrams and/or with sequence of operation text. Control Contractor shall discuss final format with
owner.
4. The Control Contractor shall document deviations from the shop drawing submittals. Documentation
should include what equipment was changed and the reason for the change.
5. Provide copy of final test reports.
C. Operating and Maintenance Materials:
1. Provide revision or supplement to existing Operation and Maintenance data on all modified
equipment or systems requiring service or adjustment (prior to and after final acceptance).
2. Provide user guides and programming manuals for all new hardware furnished by the Control
Contractor.
a. A reference manual shall be furnished and shall contain, as a minimum, an overview of the
system, its organization, the concepts of networking, and central site/field hardware
relationships.
b. Manuals for each new controller type shall be provided.
c. When manuals/O & M information is provided with Owner provided control items include those
in this document.
3. Provide a Bill of Materials with each schematic drawing modified or added. List all devices/equipment
and match to schematic and actual field labeling. Provide quantity, manufacturer, actual product
ordering number, description, size, accuracy, operating ranges (voltage, temperature, pressure, etc.),
input/output parameters, etc.
4. Field copies of wiring for Primary and Secondary Control Units. (Laminated and permanently affixed
in or above controller).
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5. For the new equipment not manufactured by the Control Vendor, an alphabetical list of system
components with the name, address and 24-hour telephone number of the company responsible for
servicing each item during the first two years of operation shall be provided.
6. Operating and maintenance instructions for each piece of equipment that includes:
a. Emergency procedures for fire or failure.
b. Start-up, operation, maintenance, disassembly and shutdown procedures.
c. Maintenance instructions for each piece of equipment.
d. Proper lubricants and lubricating instructions.
e. Cleaning, replacement and/or adjustment schedule.
f. Product data on each piece of equipment, including damper and valve information noted earlier.
7. Points list shall include all physical input/output and virtual points. Points list shall be provided in hard
copy and shall include:
a. Name
b. Address
c. Engineering units
d. Offset calibration and scaling factor for engineering units
e. High and low alarm values and alarm differentials for return to normal condition
f. Default value to be used when the normal controlling value is not reporting.
g. Message and alarm reporting as specified.
h. Identification of all adjustable points
i. Description of all points
8. Control Logic documentation shall include:
a. Drawings documenting control logic for all aspects of the BAS including control units, controlled
devices, sensors, etc.
b. A detailed sequence of operation (see Part 6) should be submitted on separate sheets for each
AH or HVAC system. The text description of the sequence of operation should include:
1) Logic control statement (i.e., describe control loop process)
2) Setpoints and throttling ranges, deadbands, and differentials for temperature and pressure
variables, gains, reset schedules, etc.
3) Limits/conditions and interlocks
4) Measured variables (e.g., mixed air temperature)
5) Variables to communicate to/from the network
c. Control diagrams should identify
1) System being controlled (attach abbreviated control logic text)
2) All DO, DI, AO, Al points
Virtual points
All functions (logic, math, and control) within control loop
Legend for graphical icons or symbols
Definition of variables or point names (e.g., OAT= outside air temperature)
Define values (e.g., 1 = on, 0 = off)
Voltage, amperage, or resistance input/output signal for all sensors and controlled devices.
D. Conformance Certificates: Upon substantial completion of the work, supply and turn over all required
inspection certificates from governing authorities to certify that the work as installed conforms to the rules
and regulations of the governing authorities.
E. Warranty Certificates:
1. Warrant all work as follows:
a. Labor and materials for the new control system specified shall be warranted free from defects
for a period of 24 months after final completion and acceptance. Control system failures during
the warranty period shall be adjusted, repaired, or replaced at no additional cost or reduction in
service to the owner.
b. The Control Contractor shall respond to the owner's request for warranty service within 24 hours
during normal business hours.
c. The Control Contractor shall respond to the owner's request for Emergency service during the
warranty period within 4 hours.
2. Emergency service rates for additional assistance shall be provided.
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a. The contractor shall provide unlimited phone technical support to the owner during the warranty
period. If the technical support location of the contractor is outside of the toll free calling area
for the customer,the contractor shall have a toll free number or accept collect calls for the
purpose of providing technical support.
b. The contractor shall provide technical support bulletin service (if available) for two years.
c. During the warranty period and if required by the School District, parts for the DDC system shall
arrive at the School District within 24 hours of placing an order.
d. At the end of the final startup, testing, and commissioning phase, if equipment and systems are
operating satisfactorily to the Engineer, the Engineer shall sign certificates certifying that the
control system's operation has been tested and accepted in accordance with the terms of the
specifications listed in this section (see 6.2 thru 6.3). The date of acceptance shall be the start
of the warranty period.
e. All work shall have a single warranty date, even when the owner has received beneficial use
due to an early system startup.
f. Control contractor shall be available for a final check and adjustment of the DDC system before
the warranty period ends. The final check will include input from the maintenance staff as well
as the Engineer.
g. Provide JACE codes for Owner system access once system is turned over to Owner for
operation.
1.8 DELIVERY AND STORAGE
A. Provide factory-shipping cartons for each piece of equipment and control device not factory installed.
Provide factory applied plastic end caps on each length of pipe and tube. Maintain cartons and end caps
through shipping, storage, and handling as required to prevent equipment and pipe-end damage, and to
eliminate dirt and moisture from equipment and inside of pipe and tubes. Store equipment and materials
inside and protected from weather.
1.9 DISCREPANCIES
A. Any items not included in the specification but referred to in the Appendix and/or Drawings in reference to
this project and any other incidentals not referred to but required as a basic element to the overall
performance and/or successful completion of the work shall be installed as part of this contract at no
additional charge.
PART 2 - PRODUCTS
2.1 BASIC MATERIALS, CONTROL DEVICES, SENSORS
A. Installation of some of the equipment in this section may be the responsibility of other contractors.
B. All sensors and equipment related to or connected to the DDC system shall be installed according to
manufacturer's recommendations.
C. Coordinate with other divisions as required for installation of devices such as valves, thermal wells, etc.
2.2 WIRING, CONDUIT, AND HANGERS
A. To supply, install and connect all conduits, boxes and wires between all the different components related in
this section including all line voltage to the equipment.
B. Provide all necessary field wiring and devices from the point of connection indicated on the drawings. Bring
to the attention of the Engineer in writing, all conflicts, incompatibilities, and/or discrepancies prior to bid or
as soon as discovered.
C. Field Wiring: It is the intent of these specifications that all systems shall be complete and operable. Refer to
all drawings and specifications to determine voltage, phase, circuit ampacity and number of connections
provided.
D. All wiring and fiber optic cable in the central plant,tunnels, and plenums to be supported by B-line Bridle
rings or equal. All wiring and fiber optic cable in the hallways, rooms, and other public areas shall be in
conduit if surface mount. Wiring whenever possible shall be concealed in walls or above ceilings.
E. All wires in Bridle Rings or conduit shall follow building lines (i.e., wires in plenum space shall run within
several inches of the wall and shall NOT run in the middle of the space).
F. Wire:
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1. Wire and cable of the sizes and types shown on the plans and/or hereinafter specified shall be
furnished and installed by the Control Contractor. All wire and cable shall be new soft drawn copper
and shall conform to all the latest requirements of the National Electrical Code, IPCEA, and shall
meet the specifications of the ASTM.
2. All control wiring to be copper stranded TEW-105,with appropriate gauge in accordance with the
Codes. The minimum gauge used to be 16 AWG.
3. Communication wire shall have a color shield that match existing network cable.
4. Input/Output Wiring:Wiring serving inputs and outputs from the BAS shall be cables consisting of
single or multiple twisted individually shielded pairs. Each pair shall have an independent shield with
drain wire. Cables installed without conduit shall be plenum rated and comply with NEC article 725.
Where automation input/output wiring is run in cable tray furnish and install conductors or
multiconductor cable rated for use in cable trays per NEC articles 340 and/or 725. Conductors shall
be minimum #18 wire gauge.
5. Power Conductors:All feeder and branch circuit wire shall be 600 V insulated of THHN type unless
shown or specified to be otherwise. No wire less than No. 12 gauge shall be used except for control
circuits or low voltage wiring. Wire sizes No. 14 to No. 10 shall be solid except where otherwise
indicated. Wire sizes No. 8 and larger shall be stranded. All wire sizes shown are American Wire
Gauge sizes. Where power conductors are run in cable tray, furnish and install conductors or
multiconductor cable rated for use in cable trays per NEC articles 340 and/or 725.
6. All the conductors used for signals from the Controllers and field sensors must be shielded two wire,
18 AWG. with a drain wire. Conductor model 8760 from Belden is to be used or approved alternative
by Engineer.
7. All power wiring to be copper stranded RW 90 type, with appropriate gauge in accordance with the
Codes. The following color code must be applied: line voltage to be black and/or white, ground to be
green.
8. Acceptable Manufacturers: Cable and wire shall be a standard type as manufactured by General
Electric Company, National Electric Company, U. S. Rubber Company, Simplex, General Cable
Company, Carol, Anaconda, Rome, Southwire, Belden, Alpha, Houston Wire and Cable, or ITT
Royal.
G. Wiring Installation:
1. All wires shall be continuous from outlet to outlet and there shall be no unnecessary slack in the
conductors.
2. All wire terminations will be identified using rail terminal strips
3. All drain wires must be grounded at the source end. The other end must be protected with a dielectric
material (tape).
4. All control wiring (24 V and more) must be in a separate conduit from the shielded conductors.
5. Pull-Box and Junction Box:
a. Pull boxes and junction boxes shall be installed where indicated on the drawings or where
required to facilitate wire installation. Locate in conjunction with other trades so as to install
without conflict with other materials or equipment.
b. A pull-box will be located at every 50'.
c. All switch, pull,junction boxes, etc., shall be hot dipped galvanized or sherardized, concrete
tight, with interlocking ring or multiple point locking devices. Connectors shall be three piece.
Indentation fittings are not acceptable.
d. In suspended ceilings, all boxes must be installed on the structure.
e. Boxes shall be attached by fasteners designed for the purpose and shall provide adequate
mechanical strength for future maintenance.
f. Junction and pull boxes not dimensioned shall be minimum 4 inch square.
6. Care shall be used to avoid proximity to heat ducts and/or steam lines. Where crossings are
unavoidable, conduit shall clear covering of line by at least six inches.
a. Wiring runs will not obstruct walkways or service access to mechanical/electrical equipment. All
cable shall be self-supported and attached to the structure as required by code. Cable will
follow a common path whenever possible, and will not run closer than 18"from any AC power or
signal source.
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7. Motor Interlock Wiring: Interlock circuit wiring shall be No. 14 solid or stranded wire. Stranded wire
only shall be used where wiring is used for flexible wiring harnesses. Stranded control wire shall be
provided with crimp type spade terminators. Interlock circuit wiring shall be color coded or numbered
using an identical number on both ends of the conductor. Wire numbers shall be installed before
conductors are pulled. Where motor interlock conductors are run in cable tray, furnish and install
conductors or multiconductor cable rated for use in cable trays per NEC articles 340 and/or 725.
8. All splices, taps, and terminations shall be made at outlet,junction, or pull boxes. Wire to No.6
gauge shall be spliced using Scotchlok wire nuts. No Bakelite wirenuts shall be used. Wire No. 6
and larger shall be spliced using solderness connectors as manufactured by Penn Union Company.
Splices No. 6 and larger shall be insulated by taping with plastic vinyl tape as manufactured by
Minnesota Mining and Manufacturing Company. Splices shall not be permitted in automation input
and output wiring without specific written authorization from the Engineer. If such a splice is
approved, the location of the splice shall be clearly documented on the "As Built"drawings. Splices
in automation wiring, if necessary, shall be made using Thomas&Betts STA-KON connectors installed
per the manufacturer's directions to maintain NEMA specified voltage drops and wire retention forces.
9. Grounding:
a. The contractor shall extend existing equipment grounding systems. The Contractor shall use
only approved grounding clamps and connectors as manufactured by Penn-Union, Burndy or O-
Z Mfg. Company.
b. The conduit system of the 480/277 and 208Y/120 volt systems shall be continuous and shall be
used as the static grounding conductor, except for circuits installed in flexible conduit. Install a
green grounding conductor inside all flexible conduits and extend to the nearest outlet or
junction box. Install a green grounding conductor inside all non-metallic conduits or raceways.
H. Conduit:
1. Conduit Material:
a. Where required wiring to be in E.M.T. type conduits.
b. All conduits to be a minimum of 1/2".
c. All flexible conduits will not exceed 6' in length and are to be used only in areas where vibrations
and/or expansion joints are present.
d. Jacketed flexible steel conduit (Sealtite) shall be used where flexible conduit connections are
required at installations exposed to moister or outdoors. Otherwise standard flexible conduit is
allowed.
e. In damp areas,the conduit and related equipment must be suitable for the application.
f. Electrometalic tubing shall be installed for all exposed work and for all concealed work in
applications where conduit is required.
g. Conduit shall be by Allied, Triangle, Republic, Youngstown, Carlon, Rob Roy, or approved
equal.
h. For exposed installations where the conduit cannot be run in ceiling spaces, wall cavities or
attics, surface-mounted raceway (wire mold) is acceptable. No EMT is allowed in these
locations. Provide samples for size and color selection. Surface-mounted raceway shall use a
metal backing plate for attachment to structure. Double sided tape is not an approved
attachment.
i. All penetrations of firewalls 1-inch or greater must be sleeved with metal conduit. The conduit
must extend a minimum of 18-inches on either side of the fire wall and must be capped with
connectors and bushings. The conduit fill cannot exceed more than 60 per cent of the conduit's
capacity. Any penetrations smaller than 7/8-inch or less do not require metal sleeving, but must
be filled with fire-rated sealant. Please note it is the contractor's responsibility to meet all state,
local, and federal building code requirements, as well as review Asbestos site documentation &
consult with school district Asbestos coordinator before commencing work.
2. Conduit Installation:
a. All wiring in mechanical rooms at heights below 8 feet must be run in conduit. Otherwise, wiring
in all other open areas must have conduit(at all heights).
b. Conduit not required above accessible ceilings or where routing wire in existing walls.
c. All conduits to be installed in a concealed manner where possible and shall be installed parallel
to the lines of the building.
d. All exposed conduits shall be installed parallel or at right angles to the building walls or floors.
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e. Conduit bends shall be made with standard hickeys of proper size; radius of bends to be at least
6 times the diameter of the conduit. Runs between outlets shall not contain more than the
equivalent of three quarter bends. Conduit runs shall be continuous from outlet to outlet, outlet
to cabinet, etc.
f. Conduits shall be installed with pitch toward outlet box wherever possible. All heavy wall
conduits shall have two locknuts and a bushing at each termination outlet box,junction box,
etc., except where terminated in a threaded hub. Fittings on electrometalic tubing shall be
compression type or set-screw.
g. A bushing shall be used where conduit enters a panel box. Bushing for No. 4 AWG or larger
shall be insulated type with provisions for grounding as type "BL" made by O-Z Electric
Company, or approved equal.
h. Expansion fittings shall be provided at all conduits across the building expansion joints. Fittings
shall be Type"AX" or"TX" as made by O-Z Electric Company, or approved equal. Provide
copper bonding jumper at each expansion fitting.
i. All Y2" conduit to be supported every 6', the supports will be located at the connector end of the
conduit.
j. Exposed conduit shall be securely fastened in place on maximum 5 ft. intervals for 3/4"through
2-1/2 inch nominal sizes. Supports may be one hole malleable straps or other approved
devices. No perforated metal straps will be permitted.
I. Wireway:
1. Furnish and install at all control panel locations a NEMA 1 lay-in wireway system to bring cable into
and out of the panel as detailed on the drawings and specified in this section. Furnish 3-way
wireways at each panel location: one for Class 1 wiring, 1 for Class 2 and Class 3 wiring. Panels at
units to be NEMA 3R or better.
2. Wireway systems at locations where cables are to be run without conduit or in a cable tray shall
consist of a connection to the control panel with a vertical extension to 8'-0"or the pipe rack or cable
tray level, whichever is higher. The vertical section shall terminate in a 90°fitting with a closure plate.
The closure plate shall be provided with a conduit nipple with locknuts and bushings as a wire entry
point into the square duct. The conduit nipple shall be one size smaller than the wireway it is
associated with.
3. Wireway systems at locations where cables are to be run in conduit shall consist of a horizontal
section of wireway with a length equal to the control panel width and located above the control panel
and connected to the control panel with three conduit nipples, locknuts, and bushings; one for tubing,
one for Class 1 wiring and one for Class 2 and 3 wiring. Conduits for cable runs shall terminate on
the wireway.
4. The intent of the wireway configurations outlined above is to provide a method for adding input and
output wiring to the control panel without having to drill directly into the electronics enclosure after the
system is on-line and running and to provide sufficient area to land field conduits while maintaining
appropriate circuit segregation for wire entry into the controller enclosure. The installation of wireway
shall be made with this consideration in mind.
J. Hangers and Anchors:
1. Where control system tubing is run on trapezes and/or hangers used by and or installed by other
trades, supports for the trapezes shall be coordinated by all trades using the trapeze to assure that
the anchor system is not overloaded and is sufficient for the load imposed including a margin of
safety and seismic considerations. Under no circumstances shall a trapeze or hanger system
installed by the electrical trades be used to support work by any other trade, nor shall the electrical
trades use the trapezes installed by any of the other trades for the support of electrical equipment, all
as required by the National Electric Code. Similarly, under no circumstances shall a trapeze or
hanger system installed by the sprinkler trades be used to support work by any other trade, nor shall
the sprinkler trades use the trapezes installed by any of the other trades for the support of sprinkler
systems or equipment, all as required by NFPA 13, Standard For The Installation Of Sprinkler
Systems.
2. Anchors to be loaded in tension for use in existing concrete structure and anchors loaded in tension
and not cast in place shall be epoxy resin set anchors installed per the manufacturers
recommendations for technique, size, loading, embedment, etc. Where anchors are loaded in shear
at these locations, suitably sized and installed wedge type anchors may be used.
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3. In all cases, anchor loading shall be based on hanger spacing, weight of the pipe to be supported
when full and insulated, weight of any additional loads imposed upon the anchor, wind loading,
seismic loading, quality of the material that the anchor is being installed in, etc. The Control
Contractor shall verify in the field that the anchors used and the materials that they are being installed
in are suitable for the load imposed and shall bring any problems to the attention of the Engineer in
writing immediately and not proceed without direction from the Engineer.
4. Wedge type anchors shall be Hilti Kwik Bolt II. Adhesive anchors shall be Hilti HVA.
2.3 UNIT CONTROL PANELS (INSTALLATION AND FABRICATION)
A. Enclosed cabinet type with hinged door for mounting all relays, switches, thermometers, and
miscellaneous controls not requiring direct mounting on equipment such as sensing elements, valves and
damper motors. Provide cabinet for each control unit adjacent to each system.
B. Control panels shall be fabricated to match the approved shop drawings submitted by the control
contractor. Fabrication shall be in a neat and workmanlike manner and shall facilitate repair, maintenance,
and adjustment of the equipment contained therein.
C. Control panels shall be fabricated and laid out to incorporate the following features:
1. Identification of all internally and cover mounted devices. Cover mounted labels shall be engraved
labels as specified in this section (5.10). Labels shall be mounted adjacent to the device they are
associated with so that replacement of the device does not eliminate the label. Provide laminated
control diagram at each panel.
2. Electrical wiring shall enter the panel from the top, bottom, and/or side of the left side of the panel or
as required by the panel supplier to meet NEC requirements.
3. All wires entering or leaving the panel shall pass through a rail terminal strip. Where the wires are
part of a current loop transmission circuit, the terminals shall be the disconnecting link type.
Terminals shall be identified with a number that corresponds to the terminal number on the job wiring
diagram. Rail terminal strip specifications include: Terminal rail assemblies shall be fabricated from
components selected from the product line of one manufacturer. Sizes (heights, widths, and profiles)
of each terminal shall be selected to be compatible with the other terminals on the rail. Terminal units
located at the end of a rail or adjacent to terminals with a different profile (for example,where
disconnecting terminals are located next to resistor terminals) shall be provided with end caps to
completely close off the terminal unit interior components from the local environment. End stops shall
be provided for on all rails to secure the terminals located on the rail in place.
4. All internal wiring and tubing shall be run inside plastic wiring/tubing duct as manufactured by Tyton.
Wire duct shall be sized to hold the required number of wires and tubes without crimping the tubes
and with sufficient space to allow wiring and tubing to be traced during troubleshooting operation.
5. Wires that pass from the panel interior to cover mounted devices shall be provided with a flex loop
that is anchored on both sides of the hinge. Wiring running to cover mounted devices shall be
bundled using cable ties.
6. Provide strain relief type cord and cable connectors for all cables that leave the panel as individual
cables not in conduit.
7. All control panels shall be provided with removable sub panels to allow the panel enclosures to be
installed at the job site during rough in while the panels are fabricated off-site for later installation.
8. Provide one duplex outlet mounted inside the control panel and separately fused with a non-time
delay fuse at 15 A at any panel location containing electronic or electrical control components. This
receptacle may be served from the control panel 120 VAC power source.
9. Each control panel shall be provided with a control power disconnect switch located and wired so as
to disconnect all control power in the panel. The leaving side of this switch shall be wired to the panel
and field components through a fuse or fuses sized and applied to protect both the components of the
system as well as the wire and as required for code compliance.
10. Power to the following equipment will be have a fuse rated for applicable current and voltage. Fuses
will be on rail terminal strips. Equipment includes:
1. Each control unit
2. Control devices
3. Panel light
4. Receptacle loads (e.g., modems, laptops)
11. All control panels containing electrical equipment shall be NEMA rated for the location in which they
are installed. Cover mounted components, tubing penetration, and conduit penetrations shall be
made in a manner consistent with the NEMA rating.
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12. All wiring leaving the panel shall be separated by classification; i.e., Class 1 circuits shall not be run
with Class 2 circuits, etc. Segregation shall be maintained inside the panel to the fullest extent
possible. Where low voltage wires carrying low level ac and dc signals cross wires containing power
and high level ac signals, the wires shall cross at a 90°angle.
13. Install terminal strips no closer than 4"from panel side, top or bottom to allow access.
14. Provide keyed locks on all panels.
D. Control panels shall be shop fabricated and tested prior to installation in the field. The panels shall be
inspected and approved by the Engineer at the assembly location prior to installation in the field. The
Engineer shall be given the opportunity to witness the testing of the panels.
E. Panel Location:
1. Each control panel is to be located for convenient servicing.
2. Mount panels adjacent to associated equipment on vibration isolation.
2.4 CONTROL DAMPER ACTUATORS
A. All damper actuators shall be Belimo electric actuators.
B. Torque rating shall be based on the damper manufacturers operating torque requirements at the design
flows and pressure drops or shall be based on the manufacturers required shut-off torque to achieve the
design leakage rate, whichever is greater. This higher torque rating shall be doubled. An actuator with this
doubled torque rating shall be installed.
C. All damper sections which operate in sequence with each other shall have identical actuators and identical
linkage arrangements to assure similar performance between all sections.
D. Modulated actuator operation shall be industry standard 0-10v.
E. Two or three position operation is not acceptable for economizers, VAV dampers, multizone dampers, or
any other application specifying modulated operation. OSA Dampers to be normally closed, mixed air
dampers to be normally open.
F. Actuator quantities for dampers shall be based on the following criteria.
1. Actuators must be outside unit enclosure.
2. Actuators shall be installed to maximize the linearity between actuator stroke and actuated devise
travel (25%actuator stroke produces approximately 25%of the desired angular rotation required;
50%stroke produces 50% angular rotation). In addition, actuators should be installed to maximize
force available for useful work over the entire stroke.
G. Actuators for VAV boxes to be provided to VAV manufacturer for installation at the factory.
2.5 CONTROL VALVES AND ACTUATORS
A. Provide adequate size and number of modulating or two-position action.
B. Provide positive positioning devices where shown or where sequencing cannot be accomplished by using
standard spring ranges.
C. Modulating valve sizing shall be based on the following conditions.
1. Water Valves:
a. Minimum pressure drop-2 psi or equal to the water side pressure drop of the coil it is associated
with, whichever is greater.
b. Maximum pressure drop-3 psi
2. Flow rates for valve sizing shall be based upon the flow rates indicated on the equipment schedules
on the drawings.
3. Valve sizing shall consider the valve cavitation coefficient. In no case shall a valve be sized so that
the pressure drop through the valve causes cavitation with fluid temperatures and pressures
encountered in the system during start up or normal operation.
4. Valves on heating systems to be normally open.
D. Valves: 2"and Smaller
1. Equip with custom flow control modulating ball valve.
2. Two position valves shall be the full size of the pipe that they are associated with unless otherwise
specified.
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3. Two-way valve actuators shall be sized to close off tight against the full pump shut off head on the
system upon which they are installed.
4. Three-way valve actuators shall be sized to close off tight in both directions against 2.5 times the
valve pressure drop at full flow.
5. Valves shall close against differential pressures. Water control valves, acting as pressure control or
pressure relief valves, shall be capable of closing against a differential pressure equal to 150% of
rated pump head of each application.
6. Screwed ends.
7. Three-way valves where indicated on drawings, otherwise two-way valves.
E. Valves: 2 1/2" or Larger
1. Globe Style
2. Two position valves shall be the full size of the pipe that they are associated with unless otherwise
specified.
3. Two-way valve actuators shall be sized to close off tight against the full pump shut off head on the
system upon which they are installed.
4. Three-way valve actuators shall be sized to close off tight in both directions against 2.5 times the
valve pressure drop at full flow.
5. Valves shall close against differential pressures. Water control valves, acting as pressure control or
pressure relief valves, shall be capable of closing against a differential pressure equal to 150%of
rated pump head of each application.
6. Flanged ends.
7. Three-way valves unless noted otherwise.
F. Valve Actuators:
1. Electronic actuators shall be manufactured by Belimo for all valves.
2. Torque shall be rated at twice the required load.
2.6 SENSORS
A. Immersion Temperature Sensor, Humidity's, differential pressure signals, and all other signal inputs shall
be industry standard variable voltage or amperage (0-10V or 4-20 mAmp). 0-10V is preferred. Thermistor
sensors are allowed for room and duct temperature sensors. Room temperature sensors to match
existing. Devices to be selected by Contractor and provided by Owner.
B. All signal inputs shall be compatible with the controllers used and with the requirement for readout of
variables as specified.
C. If sensors are not linear,then software will linearize sensor output.
D. Minimum sensor accuracy(as compared to a test standard) and range are listed in Table. Accuracy is not
the same as resolution (the ability of the DDC to measure incremental change). Resolution is specified in
"Part 3. DDC Hardware."
1. All accuracy values should be combined effect numbers taking into account thermal drift,
interchangeability, hysteresis, etc.
Sensor Type Range Min. Accuracy
Duct/Air Handling
Unit Temperature 40— 130°F ±0.5 Degree F
Room Temperature 50—85°F ± 1 Degree F
Outside Air Temperature -20 to 120°F ±0.5 Degree F
Hot Water Temperature 80—220°F ±0.1 to±0.5 Degree F
Water flow Sized for application ±5%of reading
Humidity 0 to 100% RH ±3% RH
Duct Static Pressure 0 to 3"w.c. ± 1%full scale per 50°F
Space Static Pressure - 0.25"to 0.25"w.c. ± 1%full scale per 50°F
High Limit Static 0-5"w.c. ±1%full scale per 50°F
Steam Pressure Sized for application ± 1%full scale
Current Sensor Sized for application ± 1%full scale
Power (kWh) Sized for application ±2.5%full scale (at 0.5 PF)
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±2%full scale (at 1.0 PF)
CO2 sensors 0 to 2,000 PPM ±3%full scale
Freeze Stat 34°F to 68°F + 1°F
Sensors shall not drift more than 1%of full scale per year
2.7 TEMPERATURE SENSORS/THERMOSTATS
A. All sensors shall be completely electronic.
B. Duct/Air Handling Unit type temperature sensor(mixed, discharge/supply, and return air):
1. The probe of the duct sensor shall be 12" in length, and be made of Stainless Steel. Applications
where the smallest dimension of the duct is less than 24", the probe shall be sized to reach the center
of the duct.
2. Large systems above 9 square feet may require an averaging probe if sufficient mixing of the air
stream is not possible.
3. Mount the sensor far enough downstream to allow mixing of the air stream, this is most important on
Hot and Cold Deck applications where the coil is placed after the fan.
4. Sensors for mounting on insulated ducts or casings are to be equipped with brackets for mounting
clear of the isolation.
5. Do not locate sensors in dead air spaces or in positions with obstructed air flow.
6. Provide separate duct flange for each sensing element.
7. Temperature sensing elements shall be thermally isolated from brackets and supports.
8. Securely seal ducts where elements or connections penetrate duct.
9. Mount sensor enclosures to allow for easy removal and servicing without disturbance or removal of
duct insulation.
C. Immersion Type Temperature Sensor:
1. The probe of the sensor shall be constructed of stainless steel and pressure rating consistent with
system pressure and velocity.
2. The well shall be constructed of stainless steel and sized to reach into the center of the pipe. Pipes
with small diameters shall have the well mounted at a 90 degree elbow to allow sufficient contact with
the fluid.
3. Locate wells to sense continuous flow conditions.
4. Do not install wells using extension couplings.
5. Wells shall not restrict flow area to less than 70 percent of line-size-pipe normal flow area. Increase
piping size as required to avoid restriction.
6. Provide thermal transmission material within the well.
7. Provide wells with sealing nuts to contain the thermal transmission material and allow for easy
removal.
D. Room Type Temperature Sensor:
1. Provide sensor to match existing Johnson Controls Metasys System. Match function of override or
temperature control if present at other stats in school.
2. Metal guards shall be provided at sensors in gyms or halls.
3. Insulation shall be installed between the temperature sensor and open conduit to eliminate false
temperature readings due to cold drafts.
E. Freeze Stat: 20' element (copper capillary), manual reset, SPDT Device.
2.8 AIR PRESSURE SENSORS
A. Static Pressure and Velocity Controllers:
1. Static pressure sensors shall be of either the diaphragm or rigid element bellows, electronic type,
photo helic.
2. Each sensor shall be provided with connections, i.e., stop cock and tubing, for attaching a portable
pressure gauge.
3. Sensors for mounting on insulated ducts or casings are to be equipped with brackets for mounting
clear of the insulation.
4. The transmitter shall be a two-wire type and provide a 0-10V (preferred) or 4-20 mA signal which is
proportional and linear over the calibrated pressure range.
5. The transmitter shall be capable of operating from an unregulated 18-30 VDC power supply.
•
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6. The device housing shall provide 1/4" barbed brass fitting for the connection of the pressure lines.
Pressure ranges shall suit the application so that normal operation will occur at mid-range of the
sensor span.
7. The location of the indoor measurement shall be remote from doors and openings to the outside,
away from elevator lobbies, and shielded from air velocity effects.
2.9 TRANSFORMERS
A. Transformers selected and sized for appropriate VA capacity and installed and fused according to
applicable Codes.
2.10 CURRENT SWITCHES
A. The status of all non—VFD fan and pump motors and all VFD fan and pump motors less than 20 HP shall
ONLY be detected using current switches.
B. The current switch shall be provided for electrical equipment status applications only.
C. Switch should attach directly to the conductor and have a mounting bracket for installation flexibility.
D. The current switch shall be 100%solid state electronics.
E. The current switch shall be induce powered from the monitored load.
2.11 CURRENT SENSORS/TRANSFORMERS
A. The status and amperage of all VFD motors for fan and pumps greater than 20 HP shall be detected using
current sensors ONLY.
B. The Amp signal shall be provided on operator screen.
C. The scale used must be selected in order to obtain normal operating readings at the mid-point of the scale.
D. The scale used must be selected in order to detect changes in current flow resulting from motor belt or
coupling loss, belt slippage, and other mechanical failures and should be able to distinguish low load
conditions.
2.12 OUTPUT DEVICES
A. Control Relays:
1. 20 amp rated contacts at 277 volts.
2. 10 million cycle rated mechanical contacts.
3. -30° F to 140° F operating range.
4. LED status light.
5. Override HOA device.
6. NEMA 1 rated housing.
7. Functional Devices Inc. RIB or equal.
8. For devices located in control panels provide with rail mount socket.
B. Economizer on Lights
1. 24 volt LED (100,000 HR rated) with flat green lense. Provide mud ring and stainless steel wall plate
modified for 16 mm light housing. Provide label that says "When light is on window may be opened".
Locate above door into room.
2.13 SURGE PROTECTION
A. All equipment shall be protected from power surges and voltage transients. If failure occurs from surges
and transients during the warranty period,then the contractor shall repair surge protection equipment and
other equipment damaged by the failure at no cost to the Owner.
B. Isolation shall be provided at all peer-to-peer network terminations, as well as all field point terminations to
suppress induced voltage transients.
C. Specifications:
1. Outlets Available: None, this unit has a terminal strip for connection.
2. Load Ratings: 20A at 120 volts, single phase, 50-60 Hz;full load regulation 1%.
3. Endurance Test: 1,000 surges, 3,000 amperes, 6,000 volts, SVR=330, actual suppressed voltage
<280 volts, no failures, L-N (ground wire protection) mode, U.S. Gov't. Mode 1.
4. Limiters: Series surge reactor current limiter; cascaded, auto-tracking dual polarity voltage limiters;
dual pulse inverters. Parameters optimized for switch-mode power supply protection.
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5. Clamping Voltage Onset: 172 volts nominal; 2 volts above peak line voltage (auto-tracking).
6. EMI/RFI Filter Response: (bi-directional, wave tracking): With 50 ohm Rg load: 3 db at 5kHz;26 dB
at 100 kHz; 38 dB at 300 kHz.
7. Let-Through Slew Rate: 5,000 volt/microsecond disturbances reduced to 28v/microsecond within AC
power wave envelope, and less than 10v/microsecond outside the power wave envelope.
8. Maximum Applied Surge Pulse Joule Rating: Unlimited rating (due to surge current limiting) (8 x 20
microsecond).
9. Maximum Applied Surge Pulse Voltage: 6,000 volts (1.2 x 50 microseconds) (Industry Standard
rating).
10. Maximum Applied Surge Pulse Current: >100,000 amperes (unlimited due to current limiting) (8 x 20
microsecond).
11. Endurance, C62.41-1991 (formerly IEEE 587) Category B3 (C1) Pulses: 2kv>100,000; 4kv>10,000;
6kv>1,000 (NRTL verified).
12. Dimensions: 10" H x 10"W x 4" D.
13. Weight: 10.6 lbs.
2.14 FACTORY MOUNTED DEVICES
A. Sensors as required shall be provided by Control contractor to the manufacturer for installation. All
materials and labor beyond this is the responsibility of the Control contractor.
PART 3 - DIRECT DIGITAL CONTROLS—HARDWARE
3.1 PRIMARY CONTROL UNITS AND SECONDARY CONTROL UNITS SHALL BE RE-USED
3.2 BUILDING LEVEL CONTROLLER
A. The Controller shall be a fully user-programmable supervisory controller. The Controller shall monitor and
communicate the network of distributed primary, secondary, application-specific control units, provide
global strategy and direction, and communicate on a peer-to-peer basis with other Network
Controllers/Supervisors. Device shall be a Iridium JACE Network area controller.
B. Controller shall be microprocessor-based with a maximum program scan rate of one (1) second. They shall
be multi-tasking, multi-user, and real-time digital control processors. Controller size and capability shall be
sufficient to fully meet the requirements of this Specification.
C. Each Controller shall support/communicate with a minimum of 100 control units.
D. Each controller shall have sufficient memory to support its own operating system, databases, and control
programs, and to provide supervisory control for all control units. In addition, if memory for historical data
trending is not on primary and/or secondary control units, then sufficient memory is required on the network
controller to capture and record historical trending data. Memory size shall be at least 1 gigabyte.
E. Controller speed shall be between 300 bps to 115K bps.
F. The controller shall have an integrated real-time clock.
G. Error detection, correction, and re-transmission to guarantee data integrity. (Optional. Low cost is of
greater importance.)
H. The Controller shall provide at least one Ethernet port 10/100 mdps, one RS-232/485 port. Controllers
shall allow temporary use of portable devices without interrupting the normal operation.
I. The Controller shall support standard Web browser access via the Internet. It shall support a minimum of
15 simultaneous users.
J. The Controller shall provide alarm recognition, storage, routing, management and analysis to supplement
distributed capabilities of equipment or application specific controllers.
K. The Controller shall be able to route any alarm condition to any defined user location whether connected to
a local network or remote via dial-up, telephone connection, or wide-area network.
1. Alarm generation shall be selectable for annunciation type and acknowledgement requirements
including but not limited to:
a. Alarm,
b. Return to normal,
c. To default.
2. Alarms shall be annunciated in any of the following manners as defined by the user:
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a. Screen message text,
b. Email of complete alarm message to multiple recipients.
c. Pagers via paging services that initiate a page on receipt of email message.
d. Graphics with flashing alarm object(s).
3. The following shall be recorded by the Controller for each alarm (at a minimum):
a. Time and date
b. Equipment (air handler#, accessway, etc.)
c. Acknowledge time, date, and user who issued acknowledgement.
L. Programming software and all controller"Setup Wizards"shall be embedded into the Controller.
M. Controller shall continuously perform self-diagnostics, communication diagnosis, and diagnosis of all panel
components. The network controller shall provide both local and remote annunciation of any detected
component failures, low battery conditions, or repeated failures to establish communication.
N. In the event of the loss of normal power,there shall be an orderly shutdown of all controllers to prevent the
loss of database or operating system software. Nonvolatile memory shall be incorporated for all critical
controller configuration data and battery backup shall be provided to support the real-time clock and all
volatile memory for a minimum of 72 hours.
1. During a loss of normal power, the control sequences shall go to the normal system shutdown
conditions.
2. Upon restoration of normal power and after a minimum off-time delay, the controller shall
automatically resume full operation without manual intervention through a normal soft-start sequence.
3. Should a controller memory be lost for any reason, the operator workstation shall automatically reload
the program without any intervention by the system operators.
O. All control devices furnished with this Section shall be programmable directly from the Niagara Workbench
upon completion of this project. The use of configurable or programmable controllers that require
additional software tools for post-installation maintenance shall not be acceptable.
P. The controller shall be provided with open NIC statements. All Niagara software licenses shall have the
following NiCS:"accept.station.in=*"; "accept.station.out=*" and "accept.wb.in=*" and "accept.wb.out=*". All
open NIC statements shall follow Niagara Open NIC specifications.
PART 4 - DIRECT DIGITAL CONTROLS—SOFTWARE
4.1 SYSTEM SOFTWARE DOWN STREAM OF THE JACE SHALL BE RE-USED. EXTEND PROGRAMMING TO
NEW SYSTEMS AS REQUIRED
PART 5 - SYSTEM SETUP
5.1 RESPONSIBILITIES OF INSTALLER AND PROGRAMMER
A. This section further defines the responsibilities of the installer and programmer.
B. The following features shall be incorporated into the final delivered product.
5.2 PASSWORDS SHALL REMAIN UNCHANGED
5.3 POINTS
A. Point naming convention of existing system shall be used for any new points.
5.4 ALARMS
A. Existing alarms shall remain unchanged. Add alarms for new points per Owner direction.
5.5 DATA TRENDING
A. Add new points to trends.
5.6 SCHEDULES
A. Schedule will be installed using time parameters provided by owner or obtained on drawings.
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5.7 GRAPHIC SCREENS
A. March existing style and format.
5.8 OVERRIDES
A. The DDC system should recognize the override and report to the screen and the printer.
B. The manual overrides for all system shall be in one location as specified by the Engineer.
C. Software shall have adjustable time limits for each override.
D. Provide override switches (see drawings for location of panel for each unit). Each momentary switch with
lockout and light (green for"on," red for"off") to activate an override of unit(s) as programmed through
software. Each override to have adjustable time setting and revert to previous mode of operation at time's
end.
E. See Drawings for building shut-off switch. Switch to shut off all air handling equipment.
5.9 SAFETY CIRCUITS
A. All safety circuits shall be hard wired circuits with independent manual reset type switches.
5.10 LABELING AND IDENTIFICATION
A. All devices relating to the work or systems included herein, including controllers, valves, motors, relays,
etc., shall be identified with a unique identification number or name on the submitted engineering drawings.
This identification number or name, along with the service of the device (discharge air controller, mixed air
controller, etc.), shall be permanently affixed to the respective device.
B. All field devices will be supplied with a nameplate indicating its name, number, address, and all other
pertinent information. See 23 05 00 for label requirements.
C. If the field device is too small for the nameplate to be "adhered"to or on another piece of equipment near it
(e.g., nameplate on air handling unit at wire penetration for mixed air temperature sensor), then attach the
nameplate via nylon ties.
D. Tagging shall be computer generated. For input/output wiring, cabling, or tubing, the panel side of the
terminals shall be labeled with the automation panel circuit board and terminal numbers associated with
the point. The field side shall be labeled with the point number. Cable, wiring and tubing not specifically
associated with an input or output shall be labeled with a number and function.
E. All wiring, tubing, and cabling both inside and outside of control panels shall be labeled at both ends using
Thomas and Betts EDP printable wire and cable markers using style WSL self-laminating vinyl. Input and
output cables and wiring shall be labeled with the point number and the point description, such as:
CPDPS005
Primary Heating Water
Pump#1 On/Off Status
F. Cable and wiring not specifically associated with an input or output shall be labeled with a number and a
function description such as:
120 VAC
Panel#
5.11 REPORTS
A. Match existing format and level of detail.
PART 6 - SYSTEM COMMISSIONING AND TRAINING
Air and water balancing shall be completed (and discrepancies resolved) before Control Contractor's final system
check and before the acceptance test to be conducted in the presence of the Engineer.
6.1 CONTROL TECHNICIAN MEETING REQUIREMENTS
A. During commissioning meetings, the control technician attending the meetings must be the same
technicians that are/will install and program the DDC system.
B. The Control Contractor's installer and programmer must attend all the meetings as listed below. These
meetings occur throughout the design and construction process.
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C. First Meeting - Discuss point naming and sequence of operation with Commissioning Agent and Owner.
1. Prior to software and database installation and checkout but subsequent to software and database
development, the Control Contractor shall meet with the Owner and the Commissioning Agent and
review the database and program code in detail on a point by point, sequence by sequence basis.
The Control Contractor(using blueprints and this specification) shall provide the project point list and
sequence of operation to initiate discussion.
2. Any necessary modifications required to make the database and sequence match the intent and
requirements of the contract documents shall be identified at this meeting including point names,
descriptors, alarm setpoint, numeric setpoint requirements, access requirements, sequence
adjustments, etc.
3. Successful completion of this review process will result in software and database approval for
installation and start-up. Any software or database that is installed prior to this approval process shall
be corrected to match the results of the approval process at no additional cost to the Owner.
4. The results of this meeting shall be documented in meeting minutes taken and issued by the
Commissioning Agent. Documentation can be in the form of marked up data base forms and
sequences of operation.
5. Provide Pre-Commissioning Test Report for approval by the Commissioning Agent and Owner before
system demonstration.
6. Provide trend reports as directed by Commissioning Agent. At a minimum trends to be provided at
10 minute intervals for each HVAC device listed below for each control point.
a. Multi-zone units with cooling.
b. Air handler units with cooling.
c. Boiler system.
d. Chiller system.
D. Second Meeting - graphic screen development shall be coordinated with the Owner through a series of
meetings that will allow the functions described above (sequence of operation, alarms, etc.) and any other
Owner's requirements to be incorporated into the graphic screens.
6.2 PRE-COMMISSIONING TESTING, ADJUSTING, AND CALIBRATION REQUIREMENTS
A. Prior to acceptance, the following steps will be used by the Control Contractor to produce a testing and
pre-commissioning report by system to be submitted for approval by the Commissioning Agent.
B. Work and/or systems installed under this section shall be fully functioning prior to Demonstration,
Acceptance Period and Contract Close Out. Control Contractor shall start,test, adjust, and calibrate all
work and/or systems under this contract, as described below:
1. Verify proper electrical voltages and amperages, and verify all circuits are free from grounds or faults.
2. Verify integrity/safety of all electrical connections.
3. Verify proper interface with fire alarm system.
4. Verify all valves are operational and no leaks are observed. Report leaks to installing contractor.
5. Coordinate with TAB subcontractor to obtain control settings that are determined from balancing
procedures. Record the following control settings as obtained from TAB contractor and provide in
O&M documents (and note any TAB deficiencies):
a. Minimum outside air damper settings for air handling units and CFM values.
6. Test, calibrate, and set all digital and analog sensing, and actuating devices.
a. Calibrate each instrumentation device by making a comparison between the DDC display and
the reading at the device, using a standard traceable to the National Bureau of Standards,
which shall be at least twice as accurate as the device to be calibrated (e.g., if field device is +/-
0.5% accurate,test equipment shall be +/-0.25% accurate over same range). Record the
measured value and displayed value for each device in the Pre-Commissioning Report.
b. All analog input points are to be tested by comparing the reading obtained through the
workstation and through an independent reading device (meter).
c. Check each analogue output by making a comparison between the control command at the
DDC controller and the status of the controlled device. Check each output point by making a
comparison of the state of the sensing device and the Host computer display. Record the
results for each device in the Pre-Commissioning Report. Provide this information in O&M
documents.
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1) All analog output points are to be tested using a command from the workstation
modulating the output in 10% increments and recording the associated voltage/amps sent
to the controlled device.
7. Check each digital input/output point by making a comparison between the control command at the
DDC controller and the status of the controlled device. Check each digital point by making a
comparison of the state of the sensing/control device and the Host computer display. Record the
results for each device in the Pre-Commissioning Report.
a. ON/OFF commands from the workstation should be performed in order to verify its true
operation.
8. Check and set zero and span adjustments for all actuating devices. Manually activate damper and
valve operators to verify free travel and fail condition. Check valve or damper to insure that it shuts off
tight when the appropriate signal is applied to the operator. Adjust the operator spring compression
as required. If positioner or volume booster is installed on the operator, calibrate per manufacturer's
procedure to achieve spring range indicated. Check split range positioner to verify proper operation.
Record settings for each device in the Pre-Commissioning Report.
9. Verify proper sequences of operation. Record results and submit with Pre-Commissioning Report.
Verify proper sequence and operation of all specified functions by adjusting input variable to
determine if sequence of operation is operating as specified.
10. Tune all control loops to obtain the fastest stable response without hunting, offset or overshoot.
Record tuning parameters and response test results for each control loop in the Pre-Commissioning
Report. Except from a startup, maximum allowable variance from set point for controlled variables
shall be as follows:
a. Air temperature: ±0.5 degrees F
b. Water temperature:± 1 degrees F
c. Duct pressure: ±0.05 inches we
C. Pre-Commissioning Testing, Adjusting, and Calibration shall be completed prior to Substantial Completion.
6.3 DEMONSTRATION
A. Prior to acceptance, the control system shall undergo a series of performance tests to verify operation and
compliance with this specification. These tests shall occur after the Control Contractor has completed the
installation, started up the system, and performed its own tests (outlined in 6.1 and to be submitted in
writing).
B. The tests described in this section are to be performed in addition to the tests that the Control Contractor
performs as a necessary part of the installation, startup, and debugging process. The Commissioning
Agent and Owner will be present to observe and review these tests. The Commissioning Agent shall be
notified at least 10 days in advance of the start of the testing procedures.
C. Demonstration shall not be scheduled until all hardware and software submittals, and the Pre-
Commissioning Test Report are approved by the Commissioning Agent.
D. Verifying compliance of equipment operation and sequence of operation with this specification through all
modes of operation.
1. If more than 10 percent of the demonstrated equipment operation and sequence of operation fails to
operate per the submittals, the demonstration test will be rescheduled after the control contractor
takes corrective action.
2. If the Control Contractor fails to demonstrate proper equipment operation and sequence of operation
in the second round of tests, the Engineer's costs for witnessing all further demonstration may be
assigned to the Control Contractor by the Owner as a deduct to their contracted price. Note: The
Control Contractor will not be responsible for costs related to poor design or to other factors beyond
their control, though it is expected to call any design concerns and other factors beyond their control
that might cause system failure to the attention of the Commissioning Agent.
E. Programming changes for correction of improperly programmed sequences will not be considered
legitimate reasons for change orders.
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F. The Control Contractor shall provide at least two persons equipped with two-way communication, and shall
demonstrate actual field operation of each controlled and sensing point for all modes of operation including
day, night, occupied, unoccupied, fire/smoke alarm, seasonal changeover, and power failure modes. The
purpose is to demonstrate the calibration, response, and action of every point and system. Any test
equipment required to prove the proper operation shall be provided by and operated by the Control
Contractor.
G. As each control input and output is checked, a log shall be completed showing the date, technician's and
Commissioning Agent's initials, and any corrective action taken or needed.
H. The system shall be demonstrated following the same procedures used in Pre-Commissioning (Section
6.1).
I. Demonstrate that all points specified and shown can be interrogated and/or commanded (as applicable)
from all workstations.
J. At a minimum, demonstrate correct calibration of input/output devices using the same methods specified
for the pre-commissioning tests. A maximum of[10] percent of I/O points shall be selected at random by
Commissioning Agent for demonstration. Upon failure of any device to meet the specified accuracy, an
additional [10] percent of I/O points shall be selected at random by Commissioning Agent for
demonstration. This process shall be repeated until 100 percent of randomly selected I/O points have
been demonstrated to meet specified accuracy.
K. The Contractor shall demonstrate that the panels' response to LAN communication failures meet the
requirements of these Specifications.
L. Demonstrate that required trend graphs and trend logs are set up per the requirements. Provide a sample
of the data archive. Indicate the file names and locations.
M. Demonstrate successful communication of point values between the BAS and other HVAC equipment
(e.g., rooftop unit).
N. Demonstrate complete operation of Operator Interface such as graphic screens, trend logs, alarms, etc.
O. Additionally, the following items shall be demonstrated:
1. DDC Loop Response. The Control Contractor shall supply trend data output in a graphical form
showing the step response of each DDC loop. The test shall show the loop's response to a change
in set point that represents a change of actuator position of at least 25%of its full range. The
sampling rate of the trend shall be from 1 second to 3 minutes, depending on the speed of the loop.
The trend data shall show for each sample the set point, actuator position, and controlled variable
values (e.g., VFD frequency or Amperage). Any loop that yields unreasonably under-damped or
over-damped control shall require further tuning by the Control Contractor.
2. Optimum Start/Stop. The Control Contractor shall supply a trend data output showing the capability
of the algorithm. The 5 minute trends shall include the operating status of all optimally started and
stopped equipment, as well as temperature sensor inputs of affected areas.
3. Operational logs for each system that indicate all set points, operating points, valve positions, mode,
and equipment status shall be submitted to the Engineer. These logs shall cover three 48-hour
periods and have a sample frequency of not more than 10 minutes. The logs shall be provided in
both printed and disk formats.
4. The DDC and HVAC systems will be shut down for 15 minutes and then re-started. Within 15
minutes,the DDC system shall start and obtain stable control of the HVAC systems without safety
trips, alarms, or excessive deviations in temperature and pressure (as defined by the Engineer).
P. System acceptance shall occur within 120 days of substantial completion. Any delay beyond this period of
time shall initiate liquidated damages unless waived by owner. Failure or delays on engineers/owners
part shall not be included in 120 day count.
6.4 ACCEPTANCE
A. All tests described in this specification shall have been performed to the satisfaction of the Commissioning
Agent and Owner prior to the acceptance of the control system as meeting the requirements of this
document.
B. The system shall not be accepted until all forms and checklists completed as part of the demonstration are
submitted and approved.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 09 23
050317 Page 21 of 21
DDC CONTROLS
C. The warranty period starts when the engineering accepts the system and provides this acceptance in
written from the Owner and the Control Contractor.
D. Any tests that cannot be performed due to circumstances beyond the control of the Control Contractor may
be exempt from the Completion requirements if stated as such in writing by the Commissioning Agent. The
Owner shall then perform such tests no later than 3 months after the building is occupied. The costs for
these additional tests will be incurred by the Control Contractor.
6.5 SPARE PARTS
A. The Control Contractor shall provide two spare fuses of the correct size and capacity for each fuseholder
located in all the installed control systems and the Control Contractor's related equipment.
B. The Control Contractor shall provide two spare pilot lights for each control unit that contains one or more
pilot lights.
6.6 TRAINING
A. Provide a minimum of four separate 4-hour on-site training sessions after system acceptance and at the
owner's request. The initial training session will occur after the as-built drawings and submittals have been
provided and the system has been accepted. The other training sessions will occur up to 12 months after
the first training session and at the owner's request.
B. Training shall be a mix of classroom instruction, test exercises, and actual keyboard entry and screen
viewing at the operator's terminal. Hands-on experience and problem solving shall be emphasized.
C. If during any training session, the trainer debugs more than two (2) items, the training session will be
immediately terminated. The session will be rescheduled for another date. The re-scheduled training
session will be carried out for the full four hours at no additional cost to the Owner.
D. The trainer must be well grounded in both DDC system operation and in mechanical systems service and
should be the programmer.
END OF SECTION
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 09 93
050317 Page 1 of 10
SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
PART 1 - GENERAL
1.1 SUMMARY
A. This section describes the sequence of operations for HVAC control systems specified elsewhere in these
specifications.
B. Related Work: The requirements of Section 23 05 00, Common HVAC Materials and Methods, also apply
to this section.
PART 2 - PRODUCTS
2.1 NO PRODUCTS LISTED FOR THIS SECTION
PART 3 - EXECUTION
3.1 SEQUENCE OF OPERATIONS
A. Provide a complete and operational temperature control and building automation system based on the
following points and sequence of operation, complete as to sequences and standard control practices. The
determined point list is the minimum amount of points that are to be provided. Provide any additional points
required to meet the sequence of operation.
B. Object List:
1. The following points as defined for each piece of equipment are designated as follows:
a. Binary Out(BO) - Defined as any two-state output (start/stop) (enable/disable), etc.
b. Binary In (BI) - Defined as any two-state input (alarm, status), etc.
c. Analog In (Al) - Defined as any variable input (temperature) (position), etc.
d. Analog Out (AO) - Defined as any electrical variable output. 0-20mA, 4-20mA and 0-10VDC
are the only acceptable analog outputs. The driver for analog outputs must come from both
hardware and software resident in the controllers. Transducers will not be acceptable under any
circumstance.
C. Occupancy and Performance Time Periods:
1. Occupied Period is signaled automatically by adjustable settings at DDC server, Building Controller,
Application Controller and also, at each zone when zone bypass timer is activated.
2. Warm-up period occurs one hour before occupied start time or as calculated by Building Controller
based on system performance history and outside air temperature.
3. Unoccupied period occurs whenever Occupied, Warm-up, or Cool-down are not in effect.
PART 4- SEQUENCE OF OPERATION
4.1 LEVEL OF DETAIL
A. Major changes in provided sequence of operation must be approved of in writing by the owner and the
Engineer.
B. The Control Contractor shall provide two types of documentation for each system (e.g., boiler plant, VAV
system, etc.). The two types of documentation include:
1. Control Logic
a. Control logic shall be a series of statements providing, for each system, the following items:
1) Identification of control process
2) Narrative of control loop or logic algorithm
3) Control parameters such as setpoints and differentials (e.g., throttling range, gains) reset
schedules, and adjustable parameters for all points
4) Identification of all constraints, limits, or interlocks that apply to control loop
5) Identification of all DO, DI, AO, Al points that apply to system
6) Identification of all communication needs (data points from outside control unit)
2. Logic Diagrams
a. For each control logic system, a logic diagram shall show the actual interaction of the points
(real and virtual) and the logic algorithm.
b. The diagram should identify
c t
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 09 93
050317 Page 2 of 10
SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
1) System being controlled (attach abbreviated control logic text)
2) All DO, DI, AO, Al points
3) Virtual points
4) All functions (logic, math, and control) within control loop
5) Legend for graphical icons or symbols
6) Definition of variables or point names (e.g., OAT=outside air temperature)
7) Define values (e.g., 1 =on, 0 = off)
c. See figure below for example of logic diagram).
HW Valve
P
@DA ?. n o D CD
SP DA o-5VDC
4110 I
NO
_ DA=Discharge ear temperature
J. D L RESET Zane temperature
N CD CD=Control device
Direct acting(DA)PID
NO=Normally We'
411) 0
The discharge air temperature
ZT4 is reset based on coldest zone
temperature.
4.2 STANDARDIZATION
A. All control loops will be standardized throughout the programming code.
4.3 PROGRAMMING GUIDELINES
A. All adjustable setpoints shall be developed as software points stored at memory locations so that setpoints
can be changed by recommending the data stored at the memory location rather than by entering the
program and changing parameters and lines in program code.
B. Where reset schedules are specified or required the schedules shall be set up so that the operator enters
the following points into memory locations.
1. Two points for the independent variable on the reset schedule.
2. Two points for the dependent variable on the reset schedule.
The computer system shall then use these values as input parameters to the appropriate program or
programs and calculate the reset schedule based on these values.
C. Where several analog outputs are to be controlled in sequence by one control loop, software shall be
arranged so that the sequence is guaranteed regardless of the spring range of the actuators and to prevent
simultaneous heating and cooling.
D. Programs controlling several pieces of equipment as one system shall reside in one control unit. Where
programs use data points that reside in other control units the programs shall employ logic (either in
software, firmware, hardware, or a combination of all three) to detect loss of communications with the
remote control units containing the required data. When such a failure is detected,the program logic shall
revert to a safe operating mode that will allow the controlled systems to remain in operation until normal
system communication resumes. A pilot light on the control unit shall be illuminated when such a failure
mode exists. In addition, an alarm shall be sent to the HOST computers (alarm level 4). The software shall
track this type of alarm and report if communication failure is higher than expected (this condition shall
generate an alarm level 3, with descriptive text, at the HOST computer). All safe operating modes shall be
approved by the Engineer prior to implementation.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 09 93
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SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
E. Control sequences that use outdoor air conditions to trigger certain specific operating modes shall use data
generated by one outdoor air temperature sensor and one outdoor humidity sensor. In other words, the
data from one pair of sensors shall be shared by the entire system.
F. All safety circuits shall be hard wired circuits using standard snap acting electric or pneumatic switches as
required by the function, and shall be totally independent of the DDC system controllers. This includes
interlocks that return dampers and valves to some normal, fail-safe position when the system they are
associated with shuts down. It is the intent of this paragraph that the systems have the capability to be
operated manually complete with safeties and fail safe interlocks even if the DDC system is off line.
G. Provide hours of operation accumulation and lead/lag sequencing of equipment based on hours of
operation for all equipment with proof of operation inputs.
H. Global point name changing:
1. The system shall provide an easy means to allow the operator to change a point name such that the
point will automatically be referenced everywhere in the system by the new name.
2. If a point name is removed from the database, any program code where the name appears must
show an appropriate error signal for undefined point when the program is viewed, edited, or printed.
I. Synchronization of real-time clocks between all control panels shall be provided.
4.4 GENERAL SEQUENCE OF OPERATION GUIDELINES
A. Control of all central fan systems, boilers, DX units, heaters, and pumping stations shall be based on run
requests, heating requests or cooling requests from zone controls.
B. Reset of supply air temperature and hot water temperature shall be based on zone temperature conditions
via the zone's percentage of heating or cooling load.
C. Unless otherwise indicated, all control loops will use PID loops. The coefficient for the derivative
component is zero (0) unless otherwise indicated.
D. All HVAC system controls shall be designed such that simultaneous heating and cooling, reheating, and
recooling are minimized. This applies as well to non-mechanical treatment of mixed air (e.g. outside air,
heat recovery, etc.) which must then be mechanically reheated or recooled.
E. Alarms: Except as directed otherwise by the Owner, all alarms will be registered at the building operator's
terminal as well as at the Maintenance Building remote operator's station. Alarms are to be registered with
a message explaining the nature of the alarm and which building/location the alarm is in.
F. Whenever a setpoint is referred to as "adjustable" in these standards, the setpoint is to be easily and
directly adjustable at the operator's terminal and Maintenance Building remote operator's station, and is not
to require any code modification. This may require assigning virtual points to all adjustable setpoints.
Frequently adjusted points, including space temperature setpoints, shall be adjustable from the graphics
screen (e.g., floor plan screen).
G. There are many interlocks and limits within each control loop or algorithm that may not be obvious or
stated in this specification. The Control Contractor is responsible for identifying and programming these
interlocks and limits into the software. The CO2 Demand Ventilation Control algorithm is a good example
of the complexity of the control loop with interlocks and limits.
H. The Control Contractor will replace any and all equipment (actuators, chillers, etc) that fail due to
programming errors. Such errors include, but are not limited to: moving actuators a couple fractions of a
degree every second or so in response to some infinitesimal change in a measured variable or repeatedly
turning equipment on/off within a short time period. The Control Contractor will avoid these problems by
incorporating time delays, dead bands, and other programming techniques into the sequence of operation.
I. Programmable time-of-day (start/stop) control shall be implemented for all HVAC equipment, except for:
1. Equipment that is interlocked with other equipment under direct start/stop control (e.g. exhaust fans
interlocked with an air handling unit).
2. Equipment that must run continuously for reasons of safety
3. As otherwise noted in these standards.
J. Auto-tuning algorithms shall not be used to initially tune control loops.
4.5 SEQUENCE OF OPERATION GUIDELINES
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 09 93
050317 Page 4 of 10
SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
A. This specification is intended to refine or elaborate on the sequence of operations provided by the
Engineer. Note: there are many issues that may make any of these standard sequences inapplicable to a
specific situation:thus,the Control Contractor should obtain written approval by the Engineer to implement
the sequence of operations contained in this specification.
B. The Control Contractor shall adhere to all applicable specifications, unless they submit written exceptions
to the Owner and Engineer and such exceptions are approved in writing. Written exceptions shall state the
specification's sequence of operations, the Control Contractor's proposed sequence of operations, and the
reasons why the proposed sequence specifications are preferable to the sequences in this specification or
those provided by the Engineer.
C. It is the Control Contractor's responsibility to improve upon these specified sequences of operations if
necessary. All improvements will be provided in writing to the Engineer for his/her written approval.
D. The Control Contractor is responsible for accurately controlling and communicating with all packaged fan
units or air handling units.
4.6 SEQUENCE OF OPERATION—VAV SYSTEMS ASU-6
A. Supply Fan Control:
1. This section applies to supply fans that are modulated by variable frequency drives (VFDs).
2. Static Pressure Control:
a. Supply fan volume is controlled to maintain the duct static pressure at setpoint as sensed at
remote static pressure sensor.
b. Ensure that the static pressure signal is communicated quickly to the control loop (and not
delayed due to network timing) and that a default value is set in the event of a network failure.
c. Control duct pressure at AHU:
1) Initiate start fan command before signal sent to VFD
2) Run timer should limit initial start up to 50%full power(ramp up without overshooting)
3) Ramp-up and ramp-down incremental changes shall be equal.
4) Use P or PI loop to control fans speed based on static pressure setpoint.
d. Pressure Reset Control: On any (2) (adjustable) VAV box dampers at 100% (adj.) open reset
discharge static pressure up by 0.010" (adj.) WC every 5 minutes. On all VAV dampers at 95%
(adj.) open or less reset discharge pressure down by 0.05" (adj.) WC every 5 minutes.
3. Variable speed drive acceleration settings, deceleration settings, minimum speeds, etc. shall be
adjusted at start up in coordination with the drive supplier and installer to achieve stable control
system performance.
4. Fan speed is reset to 0 (zero) Hz when the AHU is off.
5. Coordinate signal from fire alarm panel to duct mounted smoke detector. One signal to detector
disables fan (Hz= 0), waits 15 seconds (adjustable), and starts smoke damper closing.
6. Duct High Pressure Shutdown: When the duct pressure exceeds the high limit set point (4" in H2O,
adjustable at the device) the fan will shut down for three (3) minutes (adjustable) and then attempt to
restart. If three (3) restart attempts occur over a period of 15 minutes (adjustable), the system shall
be disabled (software). Lockout reset will occur at the operator's workstation.
B. Return Fan Control:
1. This section applies to return fans with variable frequency drives (VFDs).
2. Fan will start/stop when supply fan starts.
3. Space pressure Control, Return Fan Speed Endpoints: The return fan shall modulate based on
supply fan speed and outside air damper position. The air balancing contractor will attain the return
fan speed based on the following values for the given operating mode.
Return Fan Speed Endpoint Values
Supply Fan Desired Space Economizer Return
Mode Speed Hi/Lo Pressure
Position Fan Speed
Reset Limits (InH2O)
Full Heating (All TBD—Noted Ideal -0.02 Min-Min (25% Minimum
terminal units during the full Acceptable of the minimum Return Fan
are operating at heating Test Range: ventilation Speed-
heating flow condition 0.01 —0.03 requirement) TBD
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050317 Page 5 of 10
SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
setpoints)
Full Cooling (All
terminal units TBD—Noted Ideal -0.02 Min-Max (100% Maximum
are operating at during the full Acceptable of the minimum Return Fan
cooling flow cooling condition Test Range: ventilation Speed
setpoints) 0.01 —0.03 requirement) TBD
4. During warm-up and night low limit, operate the unit in 100% recirculation mode.
5. Fan speed is reset to zero (0) Hz when the AHU is off.
6. Variable speed drive acceleration settings, deceleration settings, minimum speeds, etc. shall be
adjusted at start up in coordination with the drive supplier and installer to achieve stable control
system performance.
7. Provide separate sequences to be enable if directed by engineer to control fan based on a set
difference in fan speed between supply air and return air, using this method rather than space
pressure control.
C. Discharge Air Temperature Reset:
1. Occupied Mode: The discharge air setpoint will reset based on the maximum cooling demand from
the spaces. When the maximum cooling demand of any two (2) (adjustable) terminal units is greater
than 95%, the discharge air setpoint shall reset down by 0.5 °F (adjustable) every five (5) minutes
(adjustable). When the maximum cooling demand is less than 90%, reset discharge air setpoint up
by 0.5 °F (adjustable) every five (5) minutes (adjustable). Minimum and maximum discharge air set
points are 55 °F (adjustable) and 65 °F (adjustable) respectively. Initial discharge air temperature
setpoint when transitioning into an occupied mode is based on the following schedule.
Initial Discharge Air Setpoint
Maximum
Terminal Unit Discharge Air
Cooling Demand Temperature Setpoint
0 65
100 55
2. The following discharge air setpoints are applicable for all other modes:
Discharge Air Setpoints, Non-
Occupied Modes
Discharge Air
Mode Temperature
Setpoint
(adjustable)
Night High Limit 50
Nigh Low Limit 85
Cooling Optimal 50
Start
Heating Optimal 85
Start
Night Purge 50
D. Fan Enable/Optimal Start Control or Warm-Up Mode:
1. All fan systems with heating capability (in AHU and/or at terminal units) shall have this sequence.
TTSD FOWLERMIDDLE SCHOOL RENOVATION SECTION 23 09 93
050317 Page 6 of 10
SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
2. The intent of this sequence is that the air handling system be started early enough so that the
maximum negative deviation of space temperature from the occupied heating set point (for all within
the system) is less than 0.5 °F no more than 20 minutes prior to or 10 minutes after scheduled
occupancy. Spaces should not be heated up above occupied heating space temperature set points.
3. Air handling systems may be started under the optimal start mode no more than 3 hours (adjustable)
prior to scheduled occupancy.
4. This optimal start sequence will be locked out when the 3 hour rolling average outdoor air
temperature is greater than setpoint (initial setpoint, 55°F, adjustable). If locked out, the AHU will
start 10 minutes (adjustable, maximum of 30 minutes) before occupied time period.
5. Air handling systems will be started as a function of:
a. Outdoor air temperature
b. Space temperature
c. Time until start of scheduled occupancy
d. Historical time period required to reach setpoint as a function of a, b, and c above.
6. Discharge air temperature setpoint will be set to the maximum optimal start temperature setpoint
(85°F, adjustable) during this mode. (100°F for AHU-1)
7. When the system is in heating optimal start mode,the mixed air dampers will be in full recirculation
mode (i.e., outside air dampers are fully closed and the supply air volume will be limited to the return
volume).
8. Unit is operating at full cooling air flow rate.
9. Exhaust fans are off and exhaust dampers are closed.
10. The building operator will be able to command start of occupancy at the operator's terminal and at the
Maintenance Building remote operator's station (overriding the optimal start sequence) for each
individual air handling system and globally for all air handling systems in the building.
E. Heating Mode:
1. Heating is accomplished at the zones. This unit has no pre-heat coil.
F. Cooling Valve Control:
1. Occupied, Occupied Purge Mode: Cooling valve to modulate to maintain discharge air temperature
set-point of 55°F (Adj.).
2. Unoccupied, Night Low Limit, Optimal Start, Night Purge and Low Limit Freeze Modes: Cooling valve
to modulate fully closed.
3. Low Limit Control: If the minimum hourly outside air temperature is less than 32°F (adjustable) and
the system is unoccupied, modulate cooling valve fully open. Also see cooling system sequences
regarding this sequence.
4. Cooling Valve Lockout:
a. Cooling valve shall not modulate when the outside air temperature is below 55°F (Adjustable).
b. If economizer operation is enable cooling valve operation is not allowed until economizer is at
100%for five (5) minutes. Economizer to maintain 100%while cooling valve is operational
unless it is disabled based on return air.
5. Considerations: Modulated the cooling valve simultaneously with the heating valve operation is not
permitted. Oscillation between heating valve and cooling valve modulation is also not permitted.
G. Night Low Limit Mode:
1. Night low limit mode is initiated during unoccupied times (mode), when any two (2, adjustable)
terminal unit space temperature(s) falls below the unoccupied heating setpoint.
2. When all spaces served by the system are above the unoccupied heating setpoint plus the dead
band setpoint (initial 5°F, adjustable),the system will revert to the unoccupied mode.
3. If the minimum hourly outside air temperature is less than 20°F (adjustable) in Western Oregon for
the previous 12 (adjustable) consecutive hours, then the AHU will remain in operation during the
unoccupied period. The system will maintain a setpoint temperature 10°F (adjustable) less than
occupied setpoint. All outside air dampers will remain closed during the unoccupied period.
H. Night High Limit Mode:
1. Night high limit mode is initiated during unoccupied times (mode), when any two (2, adjustable)
terminal unit space temperatures) rises above the unoccupied cooling setpoint and the outside air
temperature is 10°F(adjustable) less than the average space temperature.
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SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
2. When all spaces served by the system are below the unoccupied heating setpoint minus the dead
band setpoint (initial 5°F, adjustable), the system will revert to the unoccupied mode.
I. Night Purge Mode:
1. This sequence is initiated before occupancy during the cooling season.
2. Night purge will be enabled when the following conditions are true:
a. The average space temperature is above 80° F (adjustable).
b. Outside air temperature is greater than setpoint (initial setpoint, 45°F, adjustable).
c. Outside air relative humidity is less than 50%.
d. Outside air temperature is at least 10°F (adjustable) less than the average space temperature
e. Occupancy period occurs within 3 hours (adjustable).
3. Night purge will be disabled when average space temperature is within 3°F (adjustable) of the outside
air temperature or the average space temperature has reach the occupied heating set point.
J. Economizer Damper Control:
1. Occupied Mode: Economizer dampers (Outside Air, Return Air and Relief Air) modulate to maintain
supply air temperature set point and air quality setpoint.
2. Economizer shall operate as first stage of cooling. If discharge set-point is not satisfied for 5 minutes
(above set-point) enable cooling.
3. Unoccupied, Night Low Limit, Optimal Start and Low Limit Freeze Conditions: Dampers to modulate
to full recirculation (0% Outside Air).
4. Night High Limit and Night Purge: Dampers to modulate to full ventilation (100% Outside Air).
5. The outside air economizer is enabled when the outside air enthalpy is less than the return air
enthalpy.
6. The outside air economizer is disabled when the outside air enthalpy is greater than the return
enthalpy for greater than 2 minutes. When the economizer is disabled, the outside air damper
modulates to the minimum position setpoint based on the air quality sensor.
7. Demand Ventilation Control (DVC): During occupied mode the outside air dampers shall modulate to
maintain supply air CO2 levels at level listed on drawings (adjustable). DVC shall occur when levels
begin to exceed the CO2 set point.
8. Economizer Minimum Position (Air Quality Control): Economizer minimum-minimum (min-min)
position value is based on 25% of the minimum ventilation requirement unless otherwise noted.
Control is set based on CO2 set point value at supply air. The economizer minimum-maximum (min-
max) position is based on the full minimum ventilation requirement. During DVC sequences, outside
air damper position (outside airflow) is limited to the min-max setting. Balancer to determine actual
damper positions at the min-min and min-max airflow setpoints. Control system shall use damper
position setpoints for control purposes and use airflow rate as feedback to verify proper economizer
damper operation. Consult Engineer for CO2 setpoint at each unit. Reset CO2 level set-point up on
call from any terminal that space CO2 levels are too high.
9. On signal that unit is in economizer operation; operate on economizer indicator light in each
classroom.
4.7 SEQUENCE OF OPERATION—TERMINAL UNIT CONTROL
A. Terminal Unit Control:
1. Space Temperature Setpoints:
Default Setpoints:
a. Occupied Heating Setpoint: 68 °F (adjustable)
b. Occupied Cooling Setpoint: 74 °F (adjustable)
c. Unoccupied Heating Setpoint: 55 °F (adjustable)
d. Unoccupied Cooling Setpoint: 80 °F (adjustable)
e. Standby Occupied Heating Setpoint: (Occupied Heating Setpoint-3°F (adjustable)
f. Standby Occupied Cooling Setpoint: (Occupied Cooling Setpoint + 3°F (adjustable)
2. Space Setpoint Adjustment:
a. Adjustment (General): Setpoint adjustments may be accomplished either at the operator
workstation or locally at the thermostat.
b. Adjustment Range: Setpoint adjustments are limited to (+1-) 2°F (adjustable). Space
temperature dead band (4°F, adjustable) is maintained during setpoint adjustments.
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SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
3. Standby Setpoints: Standby setpoints are used during occupied modes when the space occupancy
sensor is inactive and the space temperature is within the standby temperature range.
4. Damper Operation:
a. Occupied Mode: Air flow setpoint will linearly reset based on terminal unit cooling demand as
shown in the schedule below.
Air Flow Setpoint-Occupied Mode
Terminal Unit Cooling Air Flow Setpoint(CFM)
Demand (%)
0-100 (Occ sensor
inactive&space Cooling Flow Setpoint X
temperature is within 0.20
standby setpoints)
0 (Occ Sensor is Active
or Occ sensor is
inactive and space Heating Flow Setpoint
temperatures are
outside of the standby
range)
100 (Occ Sensor is
Active or Occ sensor is
inactive and space Cooling Flow Setpoint
temperatures are
outside of the standby
range)
b. Optimal Start Mode: Air flow setpoint will reset based on the schedule below. Implement dead
band to prevent oscillation between cooling and heating flow setpoints.
Air Flow Setpoint—Heating Optimal Start
Space
Temperature> Air Flow Set Point
Occupied Heating
Set Point
Cooling Flow Setpoint X 1.25,
No (Multiplier is adjustable from
GUI)
Heating Flow Setpoint X 0.1,
Yes (Multiplier is adjustable from
GUI)
Air Flow Setpoint—Cooling Optimal Start
Space
Temperature < Air Flow Set Point
Occupied Cooling
Set Point
Cooling Flow Setpoint X 1.25,
No (Multiplier is adjustable from
GUI)
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SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
Heating Flow Setpoint X 0.1,
Yes (Multiplier is adjustable from
GUI)
c. Night High Limit, Night Purge Mode: Cooling flow setpoint shall be used during this mode.
Units that did not initiate the control mode and have space temperatures above the occupied
cooling setpoint shall also control to their respective cooling flow set point until the mode is
canceled or the space temperature has reached the occupied cooling setpoint. Implement 1°F
space temperature dead band to prevent damper oscillations.
d. Night Low Limit Mode: Cooling flow setpoint shall be used during this mode. Units that did not
initiate the control mode and have space temperatures below the occupied heating setpoint
shall also control to their respective cooling flow set point until the mode is canceled or the
space temperature has reached the occupied heating setpoint. Implement 1°F space
temperature dead band shall be used to prevent damper oscillations.
e. Unoccupied Mode: Damper modulates fully closed. Flow setpoint is 0 CFM.
5. Heating Valve Operation:
a. Occupied Mode: Valve will modulate based on heating demand to maintain occupied heating
setpoint.
b. Optimal Start Mode: Heating Valve will modulate based on the schedule below. Implement 1°F
space dead band to prevent valve oscillation.
Valve Position - Optimal Start
Space
Temperature> Valve Position
Occupied Heating
Set Point
100% (Subject to
No discharge air
temperature limiting)
Yes 0%
c. Unoccupied Mode, Night High Limit, Night Purge Mode: Valve is closed.
d. Night Low Limit Mode: Valve modulates fully open (Subject to discharge air temperature
limiting). Units that did not initiate the control mode and have space temperatures below the
occupied heating setpoint shall also modulate valves fully open until the mode is canceled or the
space temperature has reached the occupied heating setpoint. Implement 1°F space
temperature dead band to prevent valve oscillations.
B. Discharge Air Temperature Limiting (All Modes):
1. Discharge temperature maximum is 110° F.
C. Space CO2 Sensor:
1. On Signal that space CO2 values exceed set-point (1000 ppm adj.) modulate air flow damper from
heating air flow to cooling air flow regardless of space demand. Disable dead band operation. Once
space is below lower level set-point(800 ppm) return to normal mode. If after 30 min. (adj.) CO2
level is not below lower level send signal to air handler.
D. Occupancy Reset: During normally schedule occupancy if lighting occupancy sensor is off (at central
controller) reset occupied space set-points down (heating) or up (cooling) by 2° F.
4.8 EXHAUST FANS
A. Science Prep Fans: Operate small fan on separate schedule from air handler. Operate 24/7 unless other
area exchange fan is on.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 09 93
050317 Page 10 of 10
SEQUENCE OF OPERATIONS FOR HVAC CONTROLS
B. Science Classroom Fan: Enable with associated air handlers. Operate from spring wound timer switch.
On space mounted timer switch (60 minutes), open exhaust damper and close return air damper. Open
damper prior to fan operation; confirm damper is open prior to starting fan. Label switch "Lab Exhaust".
C. Kiln Exhaust: Operate from space mounted sensor or timer switch (12 hour). Sheet ASU-10 sequence.
D. Electric Room Fan: Operate from space sensor to maintain 80° F or less. Open damper and prove
operation prior to operating fan.
E. Laser Engraver Fan: Operate from wall switch. Open damper and confirm prior to operation of fan.
Provide label at switch that says "If switch light is on fan will operate. Fan will start 60 seconds after switch
is moved to on position".
4.9 ASU-1
A. Heating and cooling operation via zone coils remains unchanged except stat location. Operate space relief
dampers from position of OSA dampers with an off-set. Test at minimum and maximum damper positions
and determine off-set value to maintain 0.02"WC space pressure.
4.10 ASU-10
A. Operate fan from new VFD. Scheduling to remain the same. Balancer to assist in determining the motor
speed for operation.
Fan Off Fan Speed
Kiln hood only on X% (TBD)
Classroom only on Y% (TBD)
Classroom and Kiln on Total fan flow speed (TBD)
B. Delete references to any interlocks with shop exhaust fans that are removed.
END OF SECTION
0
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 23 00
050317 Page 1 of 3
REFRIGERANT PIPING SYSTEM
PART 1 - GENERAL
1.1 DESCRIPTION
A. The requirements of this section apply to the refrigerant piping system connecting refrigeration and HVAC
equipment specified in other sections of these specifications. Provide pipe, pipe fittings and related items
required for complete piping system.
B. Related Work: The requirements of Sections 23 05 00 - Common HVAC Materials and Methods.
1.2 QUALITY ASSURANCE
A. Installation Contractor: Manufacturer's authorized installation and start-up agency normally engaged and
experienced in air conditioning/refrigeration work and certified in the handling of refrigerant.
1.3 STORAGE AND HANDLING
A. Provide factory-applied end caps on each length of pipe and tube. Maintain end caps through shipping,
storage and handling as required to prevent pipe-end damage and eliminate dirt and moisture from inside
of pipe and tube. Protect flanges and fittings from moisture and dirt by inside storage and enclosure, or by
packaging with durable, waterproof wrapping.
PART 2 - PRODUCTS
2.1 PIPING MATERIALS
A. Copper Pipe and Tube:
1. Application: Refrigerant.
2. Pipe:
a. ASTM B88. Type ACR with brazed joints. Cleaned and sealed at the factory.
b. All other location shall be hard temper.
3. Refrigerant Fittings: ANSI/ASME B31.5 or SAE J 513-F, "Refrigeration Tube Fittings." Where
conflicts occur, 831.5 shall govern.
2.2 MISCELLANEOUS PIPING MATERIALS/PRODUCTS
A. Brazing Materials: Provide brazing filler rod and flux materials as determined by the installer to comply
with installation requirements.
2.3 REFRIGERATION SPECIALTIES
A. General: Provide the following equipment where they are not a part of the factory installed equipment
accessories. Select equipment for operation with the refrigerant being utilized and for the pressure and
temperature conditions indicated. Sporlan, Alco, Henry, Detroit, or as listed for each equipment.
B. Liquid and Moisture Indicators: Moisture and liquid indicator installed after the liquid line filter dryer.
C. Liquid Line Filter Dryer: Sealed container up to approximately 10 tons of capacity and replaceable
desiccant dryer core and strainer on larger capacity systems.
PART 3 - EXECUTION
3.1 PIPE INSTALLATION
A. Piping Runs: Route piping close to and parallel with walls, overhead construction, columns and other
structural and permanent-enclosure elements of the building. If not otherwise indicated, run piping in the
shortest route which does not obstruct usable space or block access for servicing the building or
equipment and avoid diagonal runs. Wherever possible in finished and occupied spaces, conceal piping
from view. Do not encase horizontal runs in solid partitions.
B. Refrigerant Piping:
1. Use Type "L" hard drawn copper tubing and make all changes in direction with specified fittings.
2. Lay out the refrigerant piping system in a manner to prevent liquid refrigerant from entering the
compressor and so that oil will return to the compressor. Slope all horizontal suction lines toward the
compressor. Take special care to keep all tubing clean and dry.
p
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 23 00
050317 Page 2 of 3
REFRIGERANT PIPING SYSTEM
3. Install all refrigerant piping straight and free from kinks and restrictions, properly supported to
minimize vibration. Provide hangers at 5' spacing for 1/2" lines, 6' spacing for 1" lines and 8' spacing
for 1-1/2" and larger lines. Submit complete diagram for approval.
4. Comply with the refrigerant piping installation instructions of the refrigeration equipment
manufacturer.
3.2 PIPING JOINTS
A. General: Provide joints of the type indicated in each piping system, and where piping and joint as
manufactured form a system, utilize only that manufacturer's material.
B. Braze Copper Tube and Fitting Joints: Where indicated, in accordance with ANSI/ASME B31.5. Pass a
slow stream of dry nitrogen gas through the tubing at all times while brazing to eliminate formation of
copper oxide.
C. Changes in Direction: Use fittings for all changes in direction. Run lines parallel with building surfaces.
D. Unions and Flanges: At all equipment to permit dismantling and elsewhere as consistent with good
installation practice.
3.3 CLEANING
A. General: Clean all dirt and construction dust and debris from all mechanical piping systems and leave in a
new condition. Touch-up paint where necessary.
B. Refrigeration System Piping: If, for any reason, sanitized and sealed-at-the-mill tubing is not used, clean
the tubing as follows:
1. Wipe each tube internally with a dry, lintless cloth followed with a clean lintless cloth saturated with
recommended refrigerant.
2. Repeat until the saturated cloth is not discolored by dirt.
3. Wipe with a clean cloth saturated with compressor oil and squeezed dry.
4. Wipe with a dry, lintless cloth.
3.4 INSULATION: SEE SECTION 23 07 00
3.5 TEST
A. General:
1. Minimum duration of two hours or longer, as directed for all tests. Furnish report of test observation
signed by qualified inspector. Make all tests before applying insulation, backfilling, or otherwise
concealing piping or connecting fixtures or equipment. Where part of the system must be tested to
avoid concealment before the entire system is complete,test that portion separately, same as for
entire system.
2. Provide all necessary temporary equipment for testing, including pump and gauges. Remove control
devices before testing and do not use piping system valves to isolate sections where test pressure
exceeds valve pressure rating. Fill each section with water and pressurize for the indicated pressure
and time.
3. Observe each test section for leakage at end of test period. Test fails if leakage is observed or if
pressure drop exceeds 5% of test pressure.
B. Repair: Repair piping system sections which fail the required piping test by disassembly and re-
installation, using new materials to the extent required to overcome leakage. Do not use chemical stop-
leak compounds, solder, mastics, or other temporary repair methods.
C. Refrigerant System:
1. When the refrigerant connections have been completed, close the compressor suction and discharge
valves (or receiver outlet valve in the case of condensing unit) and test the balance of the system to
near operating pressure with a dry nitrogen.
2. Carefully test all joints, using soap and water or other sudsing solution. After all joints are tested,
discharge the gas and repair all leaks,then repeat the test with a mixture of nitrogen and R-410A and
a halide torch or an electronic leak detector.
3. Evacuate the system to remove moisture and non-condensables. Lower the absolute pressure with a
vacuum pump to 1000 microns of mercury. Apply external heat as required to vaporize moisture.
s t
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 23 00
050317 Page 3 of 3
REFRIGERANT PIPING SYSTEM
4. Dehydrate each refrigerant circuit by satisfactory use of a vacuum pump before charging with
refrigerant. Furnish all necessary refrigerant and oil for complete operating charge of the system.
Upon completion of the work of construction, test all refrigeration equipment under normal operating
conditions and leave in operating order. Adjust automatic temperature controls.
5. After the first 24 hours of operation, measure the pressure drop across the suction filter. If the
pressure drop exceeds 5 pounds per square inch, replace the cartridge with a new one, retesting and
replacing the cartridge and/or adjusting the system as necessary to achieve a pressure drop of less
than 5 pounds per square inch in 24 hours.
END OF SECTION
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 34 00
050317 Page 1 of 2
HVAC FANS
PART 1 - GENERAL
1.1 DESCRIPTION
A. Provide Fans as specified herein and shown on the Drawings.
B. Equipment capacity and size as indicated in the equipment lists on the Drawings.
C. Related Work: The requirements of Section 23 05 00, Common HVAC Materials and Methods, also apply
to this section.
1.2 QUALITY ASSURANCE
A. Air Handling Equipment: Rated in accordance with AMCA certified rating procedures and AMCA labeled.
B. See Commissioning specification for additional requirements.
1.3 SUBMITTALS
A. Submit catalog data, construction details and performance characteristics for each fan.
B. Submit operating and maintenance data.
PART 2 - PRODUCTS
2.1 EXHAUST FANS AND UNITS
A. Inline Cabinet Exhaust Fan: Belt or direct drive (see drawings), forward curved centrifugal wheel, sleeve
bearings, motor and wheel and external spring vibration isolators; provide duct connection and backdraft
dampers or motorized damper on discharge of exhaust fan. Size and capacity as indicated on Drawings.
Provide neoprene flexible connections on intake and discharge. For Direct Drive Fans, provide with E.C.
motor with integral speed control device. Carnes, Greenheck, Cook, Twin City, or approved.
B. Prop Fan: Color selected by Architect, constructed with 8 anodized Airfloil Blades, direct drive-variable
speed motor. Provide with standard 2" mounting stem and 10'diameter. Big Ass Fans Essence series
with wired all controller.
C. Laser Engraver Fan: Sheetmetal housing and fan wheel powered by a 3500 RPM 3 phase motor.
Performance per schedule Nederman or approved.
D. Roof Mounted Exhaust Fan (Direct Drive): Curb mounted on roof;vertical shaft, direct driven, open BI
wheel as shown on Drawings with EC motor; bird screen;weatherproof aluminum housing for mounting on
square base; capacity as indicated on Drawings. Motor located outside the air stream. Casing to be easily
removed for service. Motor and fan assembly to be mounted on rubber vibration isolators unless noted
otherwise. Provide with 2-postion motorized damper with the same interior frame size as the duct
connection to the fan. Provide damper with actuator. Actuator shall be Belimo only. Provide single point
J-Box to operate fan and damper together. Provide disconnect switch at fan with NEMA rating per code.
Greenheck, Soler& Palau, Jen Fan, Carnes, Acme, Penn Barry, Cook, Twin City or approved.
2.2 ASU-6 REPLACEMENT FANS
A. Supply Unit: Fans shall be airfoil,double width, double inlet. Approved Manufactures are Twin City Fan, Barry
Blower or approved.
B. Housing: Constructed of galvanized steel with housing sides and scroll spot welded together.
C. Wheel: Supply fans shall be airfoil, double width, double inlet fan wheels constructed of steel blades
welded to a structural steel center plate and to end rings. The wheels shall be powder coated for corrosion
protection.
D. Return fans shall be forward curved, double width, double inlet fan wheels constructed of steel blades
locked into end rings. The wheels shall be powder coated for corrosion protection.
E. Shafts: Shafts are C40 hot-rolled steel, turned, ground, polished and ring gauged for accuracy. Fan
assemblies shall be provided with coated solid shafts.
F. Bearings: Deep groove, self-aligning ball or roller bearings mounted in a single piece pillow block housing.
The bearings shall be lubricated style and have an average rated bearing life of 200,000 hours. The
bearings are mounted on a sturdy angle iron base and bolted to the frame. Provide extended lines to
remote bearing if there is not at least 18"clear around the free side of the fan.
TTSD FOWLER MIDDLE SCHOOL RENOVATION SECTION 23 34 00
050317 Page 2 of 2
HVAC FANS
G. Frame Construction: Constructed for field installation in noted orientation. Provide with welded and
painted rectangular angle side frames.
H. Warranty: The manufacturer shall guarantee the workmanship and materials for least one (1) year from
startup or eighteen (18) months from the date of shipment, whichever occurs first.
PART 3 - EXECUTION
3.1 INSTALLATION
A. Install and arrange equipment as shown on the Drawings and as recommended by the equipment
manufacturer.
3.2 AIR HANDLING INSTALLATION
A. Installation and Arrangement: Air handling equipment shall be installed and arranged as shown on the
Drawings. Comply with the manufacturer's recommendations for installation connection and start-up.
B. Lubrication: All moving and rotating parts shall be lubricated in accordance with the manufacturer's
recommendations prior to start-up.
C. Filters: Specified filters or approved temporary construction filters shall be installed in supply units prior to
start-up or used for drying and/or temporary heat.
B. Manufacturer's Field Service: Engage a factory authorized service representative to inspect field
assembled components and equipment installation to include electrical and piping connections. Report
results to NE in writing. Inspection must include a complete startup checklist to include (as a minimum) the
Completed Start-Up Checklists as found in manufacturer's IOM.
C. Engage a factory authorized service representative to perform startup service. Clean entire unit, comb coil
fins as necessary, and install clean filters. Verify water source for compliance with manufacturer's
requirements for flow and temperature. Measure and record electrical values for voltage and amperage.
Refer to Division 23 "Testing, Adjusting and Balancing" and comply with provisions therein.
D. Engage a factory authorized service representative to train owner's maintenance personnel to adjust,
operate and maintain the entire unit. Refer to Division 01 Section Closeout Procedures and Demonstration
and Training.
3.3 CONTROLS
A. Wiring: All wiring shall be in accordance with the National Electrical Code and local electrical codes.
END OF SECTION
TTSD FOWLER MIDDLE SCHOOL RENOVATION ADDENDUM NO. 1
May 4, 2017 Page 1
From: Bora Architects
To: All Contract Document Holders
This addendum to the Contract Documents is issued to clarify, correct and supplement the Drawings and Project
Manual issued as FOWLER MIDDLE SCHOOL IMPROVEMENTS PERMIT SET dated April 21, 2017. This
Document is hereby made a part of the Contract Documents to the same extent as though it were originally
included.
This Addendum consists of 2 addendum pages, 9 specification sections and 40 drawing sheet attachments.
ATTACHMENTS
New Specifications:
Section 23 23 00, Refrigerant Piping System
Reissued Specifications:
Section 00 01 10, Table of Contents (updated to include a section previously provided as well as a new section)
Section 22 40 00, Plumbing Fixtures
Section 23 05 90, Testing, Adjusting and Balancing
Section 23 07 00, HVAC Insulation
Section 23 09 23, DDC Controls
Section 23 09 93, Sequence of Operations for HVAC Controls
Section 23 10 00, Facility Fuel Systems
Section 23 34 00, HVAC Fans
New Drawings:
P101 A Sector 1 —Plumbing Demo Plan
M6.03 Mechanical Details
Reissued Drawings:
S100 General Notes, Abbreviations, Sheet Index
S101 Typical Details
S210 Foundation Plan—Sector 1
S215 Foundation Plan—Sector 5
S220 Mechanical Floor Framing &Ceiling Level Plan—Sector 1
S230 Roof Framing Plan—Sector 1
S232 Roof Framing Plan—Sector 2
S501 Details
S504 Details
A121 B First Floor Plan—Sectors 2 & 5
A201 Exterior Elevations &Window Details
A254 Interior Elevations—Sector 5
A303 Building Sections - Sector 5
A451 Enlarged Toilet Room Plan and Elevations
A591 Enlarged Finish Plans &Teacher Island
A601 Room Finish, Shear Wall & Door Schedules
A602 Signage Plans &Schedule
P101 B Sector 2 & 5— Plumbing Demo Plan
P201 A Sector 1 — Plumbing Plan
M101A Sector 1 —Mechanical Demo Plan
M101 B Sector 2 &5—Mechanical Demo Plans
M201 A Sector 1 —Mechanical Plan
M201 B Sector 2 &5—Mechanical Plans
M301 A Sector 1 —Mechanical Piping Plan
4
• TTSD FOWLER MIDDLE SCHOOL RENOVATION ADDENDUM NO. 1
May 4, 2017 Page 2
M301 B Sector 2—Mechanical Piping Plan
M401 A Sector 1 —Mechanical Roofing Plan
M401 B Sector 2 &5—Mechanical Roof Plans
M501 Mechanical Controls
M601 Mechanical Details &Schedules
M602 Mechanical Details & Schedules
E100 Electrical Cover Sheet
E201 B First Floor Plan—Sectors 2 &5—Lighting
E301 B First Floor Plan—Sectors 2 & 5— Power
T201 A First Floor Plan—Sector 1 —Telecom Ceiling
T201 B First Floor Plan—Sectors 2 &5—Telecom Ceiling
T301 B First Floor Plan—Sectors 2 &5—Telecom
T401 Telecom Elevations
T402 Telecom Elevations
END OF ADDENDUM
TTSD FOWLER MIDDLE SCHOOL RENOVATION ADDENDUM NO. 2
June 9, 2017 Page 1
From: Bora Architects
To: All Contract Document Holders
This addendum to the Contract Documents is issued to clarify, correct and supplement the Drawings and Project
Manual issued as FOWLER MIDDLE SCHOOL IMPROVEMENTS PERMIT SET dated April 21, 2017, including
prior addenda. This Document is hereby made a part of the Contract Documents to the same extent as though it
were originally included.
This Addendum consists of 1 addendum page, 5 specification sections and 3 drawing sheet attachments.
ATTACHMENTS
New Specifications:
Section 070150, Preparation for Re-Roofing
Section 075113.11, Built-Up Asphalt Roofing, Hot Applied
Section 075113.13, Built-Up Asphalt Roofing, Cold Applied
Reissued Specifications:
Section 00 01 10, Table of Contents
Section 07 01 50.72, Restoration of Aggregate Surfaced Built Up Roofing
Reissued Drawings:
A002 Wall, Floor& Roof Assemblies & Notes
A122 Roof Plan
A541 Roof&Skylight Details
END OF ADDENDUM
• FOR OFFICE USE ONLY—SITE ADDRESS:
Reprint Permit (per PE): Ti Yes n No n Done
Applicant Notified: Date: Initials:
I:\Building\Forms\TransmittalLetter-Revisions.doc 05/25/2012
• FOR OFFICE USE ONLY—SITE ADDRESS:
This form is recognized by most building departments in the Tri-County area for transmitting information.
Please complete this form when submitting information for plan review responses and revisions.
This form and the information it provides helps the review process and response to your project.
City of Tigard • COMMUNITY DEVELOPMENT DEPARTMENT
Transmittal Letter
T I G A R D 13125 SW Hall Blvd. • Tigard, Oregon 97223 • 503.718.2439 • ww .tigard-or.gov
TO: DAT "RECEIVED:
DEPT: BUILDING DIVISIONECEIVED
JUL FROM: Eve Fagenstrom 2 2017
CITY OF TIGARD
COMPANY: Bora Architects
BUILDING DIVISI N c,
PHONE: 503-226-1575 By- f
RE: 10865 SW Walnut BUP2017-00104
Tigard, OR 97223-4052
(Site Address) (Permit Number)
Fowler Middle School Renovation
(Project name or subdivision name and lot number)
ATTACHED ARE THE FOLLOWING ITEMS:
Copies: Description: opies: Description:
Additional set(s) of plans. 3 Revisions: Addendums No 1, 2 & 3
Cross section(s) and details. Wall bracing and/or lateral analysis.
Floor/roof framing. Basement and retaining walls.
Beam calculations. Engineer's calculations.
Other(explain):
REMARKS: Addendum No 1 corrects Mme information and adds missing details, as well as flips the
teaching walls in STEM Computer Clas:room 42A and 42D and adds windows into Storage room 42G.
See attached Addendum No 1 docume for a list of the specific specifications and drawings included
Addendum No 2 indicates that 3 roof areas are to be re-roofed and a few areas are in need of repair.See
attached Addendum No 2 document or a list of the specific specifications and drawings included
Addendum No 3 revises drawing A 53 to indicate that all Student counters in the Science Classrooms are
PL-4, (the original sheet noted M'R-1 countertops in two classrooms).
FORFFI USE ONLY
Routed to Permit Technician____: Date: 8�`2 (7 Initials:
Fees Due: I I Yes (—t— o Fee Description: Amount ue:
Special ' f �,`�,
Instructions: /''/I Z� a ` /yW�-74 s.r— " AA )
I.\Building\Forms\TransmittalLetter-Revisions.doc 05/25/2012