Correspondence February 25, 2007
John Thompson
Alpine Fire Protection
21410 NE 174 St.
Brush Prarie, Wa. 98606
RE: TI - FIRE SPRINKLER SYSTEM
Project Information
Building Permit: BUP2007 -00042 Construction Type: 5N
Tenant Name: BMW Motorcycles Occupancy Type: B /Wk
Address: 12020 SW Garden Place Occupant Load: NA
Area: 22,000 Sq. Ft. Stories: 1
Hazard: Light Commodity: NA
The plan review was performed under the State of Oregon Structural Specialty Code (OSSC) 2004 edition;
National Fire Protection Association, Standard 13 (NFPA 13)2006 edition and the State of Oregon Fire
Code (OFC) 2004 edition. The submitted plans are approved subject to the following.
GENERAL
1. A key box shall be installed in a location approved by the Fire Chief. The key box shall be of an
approved type and shall contain keys to gain necessary access as required by the fire code official.
Section 506.1 OFC. Please contact Tualatin Valley Fire & Rescue for key box information at 503-
612 -7010
2. A supply of spare sprinklers (never less than 6) shall be maintained on the premises so that any
sprinklers that have operated or been damaged in any way can be promptly replaced. These
sprinklers shall correspond to the types and temperature ratings of the sprinklers on the property.
Sections 6.2.9.1 & 6.2.9.2 NFPA 13.
3. The spare sprinklers shall be kept in a cabinet located where temperatures will not exceed 100
degrees "F" at any time. A special sprinkler wrench shall be provided and kept in the sprinkler
cabinet to be used in the removal and installation of sprinklers. Sections 6.2.9.3 & 6.2.9.6 NFPA
13.
4. The clearance between the deflector and the top of storage shall be 18 inches or greater. Section
8.6.6.1 NFPA 13. The distance shall be increased to 36 inches for Large Drop sprinkler heads.
Section 8.11.6 NFPA 13
5. Sprinklers shall be located a minimum of 4 inches from walls and spaced not less than 6 feet on
center. Sections 8.6.3.3 & 8.6.3.4.1 NFPA 13.
6. Clearances shall be provided around all piping extending through platforms, foundations, walls and
floors. The diameter of the hole shall be 2 inches larger than the penetrating pipe for pipe sizes 1
inch through 3 1/2 inches. The diameter of the hole shall be 4 inches larger than the penetrating
pipe for pipe sizes 4 inches and larger. Sections 9.3.4.1 & 9.3.4.2 NFPA 13.
7. All valves controlling the water supply for automatic sprinkler systems and all water flow
monitoring devices shall be electrically monitored when the system serves more than 20 heads.
Section 903.4 OFC
8. An approved audible sprinkler flow alarm shall be provided on the exterior of the building in an
approved location. Such sprinkler water -flow devices shall be activated by water flow equivalent to
the flow of a single sprinkler of the smallest orifice size installed in the system. Section 903.4.2
OFC
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. 106.4.2 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.
Respectfully,
Dan Nelson,
Senior Plans Examiner
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