I believe the AHJ overdid it. The 4 sprinkler design area for residential sprinklers is paramount - you don't adjust it upward. If your design area is a corridor, I don't think you would adjust it either. Those provisions are for spray sprinklers and the area/density method.
Steve Leyton Protection Design & Consulting -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kurt Kingston Sent: Friday, April 18, 2008 8:16 AM To: [email protected] Subject: RE: NFPA 13 Building with residential heads Dewayne, A short summary of my experience in this situation was the AHJ required the 3000 square feet if it was a 13 system. I did use 7psi head pressure to prove a minimum area density of 0.10/3000 vs. the residential head listing pressure required for the spacing within the 3,000 square feet. I hope someone else can give you better news. Kurt Kingston Commercial Fire Protection Inc. Mt Vernon, WA -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dewayne Martinez Sent: Friday, April 18, 2008 4:30 AM To: [email protected] Subject: NFPA 13 Building with residential heads NFPA 13 (07ed) I am designing a sprinkler system for a Hotel that falls under NFPA 13. The floors containing the residential units have a combustible concealed space that does not require sprinklers (8.15.1.2.6) but does not qualify for the 3000 sq ft exemption of 11.2.3.1.4 (4) for unsprinklered combustible concealed spaces. If I am using residential sprinklers, are they exempt from this rule because they are a specific application sprinkler and not an area/density or room design method? Thanks, Dewayne _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
