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Correspondence July 21, 2005 • CITY OF TIGARD OREGON AFD Systems Inc. Ryan Cole 19435 SW 129 Ave. Tualatin, OR 97062 • RE: FIRE SPRINKLER SYSTEM MODIFICATION - REVIEW Project Information Building Permit: BUP2005 -00318 Construction Type: 3B Tenant Name: Cognex Occupancy Type: B Address: 15865 SW 74 Ave 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. CONCEALED SPACES: - Section 8.14.1 9. All concealed spaces enclosed wholly or partly by exposed combustible construction shall be protected by sprinklers. 13125 SW Hall Blvd., Tigard, OR 97223 (503) 639 -4171 TDD (503) 684 -2772 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. Resp ly Val Henzel, Senior Plans Examiner