Correspondence t+ uivau� -nq i� I; •,\
August 16, 2005
CITY OF TIGARD
OREGON
Patriot Fire Protection, Inc.
Jeff Colins
4708 NE Mmnehaha St
Vancouver, WA 98661
RE: FIRE SPRINKLER SYSTEM MODIFICATION - REVIEW
Project Information
Building Permit: BUP2005 -00380 Construction Type: II B
Tenant Name: Pottery Barn Kids Occupancy Type: M
Address: 9345 SW Washington Sq # T13 Occupant Load: 165
Area: 9,234 sq ft Stories: - 2
Hazard: Ordinary Group Commodity: IV
The plan review was performed under the State of Oregon Structural Specialty Code (OSSC) 2004
edition, Oregon Fire Code 2004 edition; and NFPA 13. The submitted plans are approved subject to
the following.
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HYDROSTATIC TESTING
Hydrostatic testing of the system shall occur at sprinkler final. The contractor's material and test
certificate required by NFPA 13, 16.1 shall be completed and signed by both the installer and
budding owner. Failure
TESTING: - Section 16.2.1
1. Unless permitted by 16.2.1.2 through 16.2.1.6, all piping and attached appurtenances
subjected to system working pressure shall be hydrostatically tested at 200 psi (13.8 bar) and
shall maintain that pressure without loss for 2 hours. Loss shall be determined by a drop in
gauge pressure or visual leakage. The test pressure shall be read from a gauge located at the
low elevation point of the system or portion being tested.
WATERFLOW ALARMS: - Section 6.9.1
7. Water flow alarm apparatus shall be listed for the service and so constructed and installed that
any flow of water from a sprinkler system equal to or greater than that from a single automatic
sprinkler of the smallest orifice size installed on the system will result in an audible alarm on
the premises within 5 minutes after such flow begins and until such flow stops.
13125 SW Hall Blvd., Tigard, OR 97223 (503) 639 -4171 TDD (503) 684 -2772
HANGERS:
8. The maximum distance between hangers shall not exceed that specified in Table 9 -2.2.
Exception: The maximum distance between hangers for listed nonmetallic pipe shall be
modified as specified in the individual product listings.
SWAY BRACING: - Section 9.3.5 - 9.3.5.8
16. The system piping shall be braced to resist both lateral and longitudinal horizontal seismic
loads and to prevent vertical motion resulting from seismic loads. The structural components
to which bracing is attached shall be determined to be capable of carrying the added applied
seismic loads. Sway braces shall be designed to withstand forces in tension and compression.
Bracing shall be attached directly to feed and cross mains.
17. For feed and cross mains, longitudinal sway bracing shall be spaced a maximum of 80 ft.
Later -al sway bracing shall be spaced a maximum of 40 ft. A length of pipe shall not be
braced to sections of the building that will move differentially.
Restraint of Branch Lines. - Section 9.3.6
18. Wire used for restraint shall be located within 2 ft (610 mm) of a hanger. The hanger closest
to a wire restraint shall be of a type that resists upward movement of a branch line. The end
sprinkler on a line shall be restrained against excessive vertical and lateral movement.
Where upward or lateral movement would result in an impact against the building structure,
equipment, or finish materials, branch lines shall be restrained at intervals not exceeding 30 ft
(9 m)
SPARE SPRINKLERS: - Section 6.2.9
19. The stock of spare sprinklers shall include all types and ratings installed and shall be as
follows: a. For systems having less than 300 sprinklers, not fewer than six sprinklers.
Approved Plans: 1 set of approved plans, bearing the City of Tigard approval stamp, shall be
maintained on the jobsite. The plans shall be available to the Building Division inspectors throughout
all phases of construction. 106.3.1 OSSC
When submitting revised drawings or additional information, please attach a copy of the enclosed
City of Tigard, Letter of Transmittal. The letter of transmittal assists the City of Tigard in tracking
and processing the documents.
Respect lly
Val Henzel
Senior Plans Examiner