The bigger question is the 15 minute thermal barrier behind a combustible tub/shower. If the plans do not take into account the barrier material, typically drywall, it doesn't matter how small the bathroom -- sprinkler head required. I typically look at the rough opening shown on the building plans. If the RO is 5'-00" they did not account for anything behind the tub/shower unit (fiberglass), that RO would have to be 5'-1". Then figure out how the plumber is going to maintain that barrier when he puts in his pipes and valves.
Duane T Fox, Jr. CFPE, CFPS Fire Protection Specialist DE State Fire Marshal's Office -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd Williams Sent: Wednesday, April 18, 2012 4:34 PM To: [email protected] Subject: bathrooms in dwelling units. This may be an old controversy, but I need to get it cleared up. When calculating the area of a bathroom for the possible omission of sprinklers, do you include the area of the tub/shower? I believe you do, but this has come up again and I would like a clarification. Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
