Geo, We struggled with this on a project some years ago after a drywall contractor shot a nail through the 3" x 5" plate we'd installed causing considerable water damage to his dry wall. Of course he then tried to blame us for not using a thick enough plate... turned out he had a legit argument in terms of the IRC requirement which specified a thickness and our contractual agreement tied us to the applicable codes and standards. That said, Mr. McMahon, the gentleman from CO was quick to the draw with a veritable slew of data on the subject and while we beat the rap, we subsequently changed our policy on the plates we install. It is specified in the IRC and the small plates we used to purchase at the local big box hardware store don't comply.
bc -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of George Church Sent: Monday, February 15, 2010 4:02 PM To: sprinklerforum@firesprinkler.org Subject: RE: CPVC and Nail plates I believe in 13R (and other spkr codes) you'll find language requiring protection from mechanical injury one could say makes a nail plate requirement- we didn't' find one in the IRC. Our AHJ was demanding nail plates that were thinker and a lot bigger per the IPC and IMC, even tho they aren't referenced standards for sprkr systems, and why I got heartburn. We were installing nail plates, because you should, but ours aren't as robust as what he wanted (and may have been spec'd in the IPC). glc _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)
