But truly with the sprinkler being semi-recessed the pipe is not penetrating the wall the sprinkler and escutcheon are. If the cpvc is considered pentrating the wall, could you not transition to steel before the penetration?
Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Sal Izzo (TECH- 103) Sent: Tuesday, April 28, 2009 9:59 AM To: [email protected] Subject: RE: Rating of the sprinkler escutcheon I believe CPVC is considered a combustible penetration when running through a rated assembly and therefore would require a listed firestop assembly. Metal escutcheons provide no rating; the IBC permits only an escutcheon to cover the annular space of a sprinkler penetration when the pipe is noncombustible, i.e., steel, copper, conduit, etc. Regards, Salvatore Izzo, P.E. SFPE Manager - Reliable Technical Services ________________________________________ From: [email protected] [[email protected]] On Behalf Of Bobby Gillett [[email protected]] Sent: Tuesday, April 28, 2009 10:56 AM To: [email protected] Subject: Rating of the sprinkler escutcheon Our situations - we have a hotel designed to 13R that requires our cpvc piping to be run through a fire rated wall between two units with 4.0K residential semi-recessed sidewall heads spraying into both units. The other is the extended coverage 8.0K semi-recessed sprinkler spraying into the stairwell (also fed by cpvc from the corridor). The question being asked by the fire marshall - What is the fire rating of the escutcheons? Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell <mailto:[email protected]> [email protected] _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
