I suspect the prior response was attempting to point out that the listing is for smooth construction (excluding the beamed listing) and a ceiling pocket kinda messes that up. So to use residential sprinklers in such arrangements, it has to be allowed by 13 /13R. A related example is the use of sidewall sprinklers beneath overhead doors. Not listed for such uses but now allowed by 13.
Roland On Apr 6, 2009, at 11:13 AM, Eric Tysinger wrote: > The ceiling pocket rules in NFPA 13/13R/13D only tell you when you > need / don't need sprinklers. The ceiling pockets rules are not > considering the "pocket" areas as protected. Therefore the > residential sprinkler installed in the lower ceiling are per > manufacturers guidelines. When the ceiling pocket rules require the > pocket to be protected then the residential sprinkler must be > installed per manufactures spec. > > Let's look at NFPA 13, it allows for pockets up to a maximum of 36" > deep. What standard sprinkler is listed to 36" down. > > As long as the pocket meets the requirements of NFPA 13/13R/13D for > omitting the sprinkler protection then the depth is not a factor, > only floor coverage is required. _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: techsupp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)
