Sorry if I'm looking a little OCD here, but another thing to consider: The entire thread is based on a misnomer that can too easily morph into a false premise. These are not "roof hydrants". They are Class 1 standpipe hose connections for fire department use and flow testing of standpipes. You start talking about hydrants with building systems and the next thing you know, somebody loses an eye ...
SL -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Jeremy Frazier Sent: Wednesday, March 25, 2015 11:31 AM To: [email protected] Subject: RE: Roof Hydrant Valves - Multi-Story Building Is this in the 2013 Ed? I'm not seeing it in 2010. So it looks like no matter which way you interpret it you do not need a roof hydrant valve, you would only need a FHV at the highest landing near the roof access. -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Pete Schwab Sent: Wednesday, March 25, 2015 12:45 PM To: [email protected] Subject: RE: Roof Hydrant Valves - Multi-Story Building Jeremy The 200 ft travel distance does not apply to the roof if it is not intended for occupancy Pete 7.3.2.2* Where the most remote portion of a nonsprinklered floor or story is located in excess of 150 ft (45.7 m) of travel distance from a hose connection in or adjacent to a required exit or the most remote portion of a sprinklered floor or story is located in excess of 200 ft (61 m) of travel distance from a hose connection in or adjacent to a required exit, additional hose connections shall be provided, in approved locations, where required by the local fire department or the AHJ. 7.3.2.2.1 The distance requirements in 7.3.2.2 shall not apply to the roof if it is not intended for occupancy. Peter Schwab VP of Purchasing and Engineering technologies Wayne Automatic Fire Sprinklers Inc. 222 Capitol Court Ocoee, Fl 34761 Mobile: (407) 468-8248 Direct: (407) 877-5570 Fax: (407) 656-8026 www.waynefire.com Please check out our website for the details! -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Jeremy Frazier Sent: Wednesday, March 25, 2015 11:36 AM To: [email protected] Subject: RE: Roof Hydrant Valves - Multi-Story Building You shouldn't need a roof hydrant if you are under 200' from your last fire hose valve to the furthest point on the roof, but you do need to put the fire hose valve at the highest landing to the roof hatch. NFPA 14 2010 7.3.2 Class I systems shall be provided with 2½" hose connections in the following locations..... (5) At the highest landing of stairways with stairway access to a roof, or on roofs with a slope of less than 4/12 where stairways do not access the roof. -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, March 24, 2015 12:06 PM To: [email protected] Subject: Roof Hydrant Valves - Multi-Story Building We are having some differences of opinion with a local fire marshall requesting the installation of roof hydrant valve. We are protecting a 4-story building that will be fully sprinklered utilizing a Class 1 - combination standpipe in the north stairwell and south stairwells. Two standpipe stacks were provided to get the 200' travel distance across the building. Hose valves are located on intermediate landings. Near the center of the building on the top floor there is a permanent ladder leading to a roof hatch. The owner does not intend to utilize the roof for any type of occupancy, only service for MEP. Since the owner does not intend to use the roof for occupancy, our travel distance from our standpipe through the roof hatch is approx. 180'-0", and our roof slope is less than 4/12 we were not planning on installing any additional hose valves / roof hydrant valves in the small room where the roof hatch is located. Were we right by leaving out the hose valve in this roof on the original design? Thank you _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
