Correspondence • April 29, 2005
CITY OF TIGARD •
OREGON
Master Fire Control
Alex Romanoff
12125 SE HWY 212
Clackamas, OR 97015
RE: FIRE SPRINKLER SYSTEM MODIFICATION - REVIEW
Project Information
Building Permit: BUP2005 -00170 Construction Type: 3B
Tenant Name: Transwestern Publishing Occupancy Type: B
Address: 7405 SW Tech Center Dr. #160 Occupant Load: 174
Area: NA Stories: 1
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. •
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 building 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.
, I, 16.2.1.4: Modifications affecting 20 or fewer sprinklers shall not require testing in excess of
system working pressure.
13125 SW Hall Blvd., Tigard, OR 97223 (503) 639 -4171 TDD (503) 684 -2772
CONCEALED SPACES: - Section 8.14.1
9. All concealed spaces enclosed wholly or partly by exposed combustible construction
shall be protected by sprinklers.
HANGERS:
10. The maximum distance between hangers shall not exceed that specified in Table 9 -2.2.
11. 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.
SPARE SPRINKLERS: - Section 6.2.9
17. 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 / // Waexi,
Val Henzel,
c , Senior Plans Examiner