PP - 2646 SOUTHCENTER MALL - ZUMIEZ - PERMITS AND PLANS

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FIRE DEPARTMENT SPRINKLER PLAN REVIEW COMMENTS Project Name: Zumiez 2646 Southcenter Mall Permit No.: 08-S-220 Date: May 22, 2008 Reviewer: Al Metzler Fire Protection Project Coordinator (206)575-4407 • Lateral sway bracing is required at a maximum spacing of 40' for all mains, cross mains, and branch lines 2.5" and larger. Bracing is provided for the last length of pipe but within 6' of the end of a feed or cross main. Bracing is required unless all the pipe is supported by rods less than 6" or by 30 ° wrap-around U -hooks for any size pipe, 9.3.5.3. • Minimum clearance around pipes: 2 " for 1 "-3.5", 4" for 4" and larger, see 4 exceptions, 9.3.4. • Longitudinal sway bracing is a maximum of 80' for mains and cross mains and within 40 ' of the end of the line, 9.3.5.4. • Provide lateral and longitudinal bracing for changes in pipe direction per section 9.3.5.11.2 for pipe size 2 1/2 inches and larger. • Restrain branch lines at the end sprinkler of each line, restrain against vertical and lateral movement, 9.3.6.3. • Restraints for branch lines shall be at intervals per table 9.3.6.4 and section 9.3.6.4, and restrain sprig ups greater than 4', 9.3.6.6. • Comply with ASCE 7-02, section 9.6.2.6.2 (e). • Ceilings used for flex drop attachments shall comply with ASTM C 635 and ASTM C 636 per section 9.2.1.3.3.2. • Where flexible sprinkler hose fittings exceed 6ft. in length and are supported by a suspended ceiling, a hanger(s) attached to the structure shall be required to ensure that the maximum unsupported length does not exceed 6 ft.(9.2.1.3.3.3).