Mark,
I only mentioned the attic sprinklers as perhaps a better alternative to
the suggestion for sidewall sprinklers at the peak. I don't know of
anything that has been tested in such a steep pitch.
Joe
Eckard, Mark - Mark E wrote:
Joe,
Per the Tyco data sheet the BB type attic sprinklers are only listed for
up to 100% rise over run (12:12 pitch). Is there another sprinkler that
can do this in a 28:12 pitch? Or is the some additional data for these
sprinklers?
Mark E. Eckard S.E.T.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Joe
Hankins
Sent: Friday, May 23, 2008 2:28 PM
To: [email protected]
Subject: Re: steep pitch roofs
Could you use Attic sprinklers at the peak? They accomplish the same
intent as sidewalls at the peak, and have actually been tested in that
configuration.
Joe
Todd Williams - FPDC wrote:
I am working on a historic church sanctuary with a pitch of
approximately 28/12. The arrangement calls for branch lines to be
symmetrical on each side, similar to NFPA 13 (2002) figure
8.6.4.1.3.1(b). I can meet the requirements for the steeply pitched
roof section 8.6.4.1.3.3 and my "S" distance over the peak is good,
but my straight line distance between sprinklers would be less than 6
ft and the deflectors would be effectively pointing the discharge
towards the sprinkler on the opposite side. I think I have a problem
here, but I am not sure how to address it. Any thoughts?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
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