You only mentioned the wood trusses. Will the sheathing/decking also be of fire-retardant treated wood? If not, then wouldn't you still have to sprinkler the space?
Larry Keeping -----Original Message----- From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Sean Lockyer Sent: May-20-15 11:38 AM To: 'sprinklerfo...@firesprinkler.org'; 'sprinklerforum@lists.firesprinkler.org' Subject: CPVC listing "grey area" I have an interesting question to ask of everyone here. I am being asked to install an NFPA 13, non-residential sprinkler system in a small, new building that will be constructed with wood. However, the wood trusses will consist of fire rated lumber with a flamespread rating of less than 25, which will not require sprinkler protection since they would considered to then be non-combustible, or at the worst, limited combustible. With that being said, could you then install CPVC piping in these concealed areas without also having to use the specially listed concealed sprinklers (such as the CC1, CC2, HIP, BB1, etc.) heads that Tyco makes ? Remember, you can only install CPVC in an attic or a combustible concealed space if you also use those specially listed heads but if the area is technically not combustible I would say that you could use CPVC just like if you were using CPVC above an gyp board ceiling in an office for example - if you take the listing literally. What does everyone else think ? Sean Lockyer Project Designer 4617 Parkbreeze Court Cell 386-279-1197 Orlando, Florida 32808 slock...@aitlifesafety.com Phone: 407-816-9101 www.AITLifeSafety.com Fax: 407-816-9104 _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
