Bar joists <> smooth But doesn't the listing say something about you can use BM in areas not required by 13 to be sprinklered? I'd say that over rides all else. This space doesn't not require sprinklers by 13, just because you add sprinklers where otherwise not required doesn't change it.
But really none of us can answer the question. The AHJ requiring the space to be sprinkler is the only one that can answer the question. 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 Travis Mack, SET Sent: Tuesday, February 02, 2010 9:22 AM To: [email protected] Subject: Re: CPVC in a concealed space The space above the ceiling is too deep for the CC heads. We are looking at using Ex Cov sprinklers. It is steel bar joists, metal deck and masonry walls in the concealed space, along with your typical HVAC, plumbing, electric. If the ceiling were removed, there would be no question with this installation. Actually, there is one question. The Blazemaster listing requires a smooth flat ceiling. Would metal deck and bar joist constitue a smooth ceiling? It appears that I need to use pendent sprinklers from the listings, but I wonder if the bar joists mean I don't have a smooth ceiling? On 2/2/2010 8:17 AM, Matt Grise wrote: > If you use tyco's CC1 or CC2 heads, they are specifically listed to be used with CPVC piping in combustible concealed spaces. > > Matt Grisé PE*, LEED AP > Sales Engineer > Alliance Fire Protection > *Licensed in KS& MO > > 913.888.0647 ph > 913.888.0618 f > 913.927.0222 cell > www. AFPsprink.com > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of George Church > Sent: Tuesday, February 02, 2010 9:17 AM > To: [email protected]; [email protected] > Subject: RE: CPVC in a concealed space > > Sounds reasonable and prudent, Travis. > > glc > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Travis Mack, > SET > Sent: Tuesday, February 02, 2010 10:09 AM > To: [email protected] > Subject: CPVC in a concealed space > > I have a project where the local authority requires us to put sprinklers > in a concealed space. The building is masonry walls and bar joist > construction (typical school). However, per the local AHJ definition of > combustible spaces, we are required to provide upright sprinklers in the > concealed spaces. Since this would classify as a non-combustible space > in any other part of the country, would it be permissible to install the > system utilizing CPVC piping? If the space above the ceiling is > considered an exposed installation, then it meets all of the > requirements required for a blazemaster installation. So, would you do > this? I have put a call into tech services, but nothing back yet. > > -- Please feel free to call if you have any questions or comments. Sincerely, Travis Mack, SET MFP Design, LLC 2508 E Lodgepole Drive Gilbert, AZ 85298 Office (480) 505-9271 Fax (866) 430-6107 _______________________________________________ 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)
