Here's the conclusion (well sort if concluded) from last April:
From: [email protected] [mailto:[email protected]] On Behalf Of Thom McMahon Sent: Friday, April 17, 2009 10:28 AM To: [email protected] Subject: RE: IMC, IPC and nail plates IPC 2006 305.8 Protection against physical damage. In concealed locations where piping, other than cast-iron or galvanized steel, is installed through holes or notches in studs, joists, rafters or similar members less than 1.5 inches (38 mm) from the nearest edge of the member, the pipe shall be protected by shield plates. Protective shield plates shall be a minimum of 0.062-inch-thick (1.6 mm) steel, shall cover the area of the pipe where the member is notched or bored, and shall extend a minimum of 2 inches (51 mm) above sole plates and below top plates. IMC 2006 305.5 Protection against physical damage. In concealed locations where piping, other than cast-iron or steel, is installed through holes or notches in studs, joists, rafters or similar members less than 1.5 inches (38 mm) from the nearest edge of the member, the pipe shall be protected by shield plates. Protective shield plates shall be a minimum of 0.062-inch-thick (1.6 mm) steel, shall cover the area of the pipe where the member is notched or bored, and shall extend a minimum of 2 inches (51 mm) above sole plates and below top plates. Here's how we deal with this. We nail plate the sole plates(one or up to 3 depending on the construction, houses with gypcrete floors typically have an extra plate or two depending upon how thick the gyp is.) and slip a steel sleeve around the riser coming thru the plate.(We find we have enough scrap pipe around to keep a constant supply of 8" sleeves. We use 8" because we have base moldings here that go to 10" high on occasion.) Most walls we see are double plates at the top. Only the upper plate is the actual "Top Plate" the second plate has a name I forget right now. Any way we nail plate both plates and have our "Nominal" 2" below the top plate. We've never had any problem with doing this from any inspector. Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 I'll add there seems later in the discussion to be some disagreement whether IPC or IMC applies to fire sprinkler system. One highly esteemed forumite says no can't use IMP or IMC as fire sprinklers are not covered in the scope of those doc. Another highly esteemed forumite says yes but through IFC 102.7 or IFC 102.8 for matters not provided for and a nationally recognized standard. The debate goes on... Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Forest Wilson Sent: Monday, February 15, 2010 5:47 PM To: [email protected] Subject: RE: CPVC and Nail plates This came up on the Forum a few months ago. I think it is not in NFPA standards but found in building codes. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dewayne Martinez Sent: Monday, February 15, 2010 5:14 PM To: [email protected] Subject: CPVC and Nail plates Does anyone know if nail plates are required by code for CPVC pipe? We do it as a safeguard but I had a salesmen ask me and I could not find it in NFPA. Thanks, Dewayne _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.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 [email protected] http://fireball.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 [email protected] http://fireball.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)
