Okay, here is an actual case in design now, I'm not making this up. The room is 27'x 27' with 2 ft. wide gap between the walls and ceiling on three sides. Two sides have sheet rock from the ceiling to the deck. The third side has return air grills set on edge vertically for the full 25 ft. dimension creating a 50 sqft continuous return. Do the return air grills have any effect on the requirement for sprinklers in the plenum?
NFPA does not allow any wiggle room (IMHO) and requires sprinklers throughout when it is not a concealed space. AHJ's have no incentive to allow anything less than the minimum and potentially a big down side if they do, so we always add sprinklers above the ceiling. Ron Fletcher Aero Automatic Sprinkler Phoenix, AZ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of George Church Sent: Tuesday, August 05, 2008 9:31 AM To: [email protected] Subject: RE: Floating Ceilings You're absolutely right, Jeff- IF the PE is competent. <see previous threads kicking this to death> He does have FPE(s?) on staff available glc _______________________________________________ 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)
