Todd, can you use figure 8.6.5.1.2(c) to eliminate them? I'm looking at the 2016 edition but I believe that figure goes back to at least 2013 and maybe 2010...
On Wed, Jan 24, 2018 at 6:32 PM Fpdcdesign <[email protected]> wrote: > There is a 5 ft elevation difference between the ceiling and the bottom of > the soffit > > Todd G Williams, PE > Fire Protection Design/Consulting > Stonington, CT > 860-535-2080 (ofc) > 860-553-3553 (fax) > 860-608-4559 (cell) > > > Begin forwarded message: > > *From: *Kyle.Montgomery <[email protected]> > *Date: *Jan 24, 2018 at 6:21 PM > *To: *Sprinklerforum <[email protected]> > *Subject: RE: [EXTERNAL] Calculation of sprinklers under soffits* > > Are you saying that the soffits extend/project 18” from the wall? If so, > are sprinklers actually required beneath the soffits? > > > > > > *From:* Sprinklerforum [mailto: > [email protected]] *On Behalf Of *Fpdcdesign > *Sent:* Wednesday, January 24, 2018 3:48 PM > *To:* Sprinklerforum <[email protected]> > *Subject:* [EXTERNAL] Calculation of sprinklers under soffits > > > > I have a project where there are existing sprinklers under soffits > approximately 18" off the wall. The bottom of the soffits is 10 ft and the > ceiling in the rest of the space is 15 ft. The space is being renovated > with the high sprinklers being relocated and the sprinklers under the > soffits remaining. Normally I would include the sprinklers under the > soffits as part of the hydraulic calculation, but based on the pipe sizes > (and the preliminary calcs), I don't think they were in the original > design. Is there any basis for omitting the lower sprinklers by considering > them as being beneath an obstruction? > > > Todd G Williams, PE > > Fire Protection Design/Consulting > > Stonington, CT > > 860-535-2080 (ofc) > > 860-553-3553 (fax) > > 860-608-4559 (cell) > _______________________________________________ Sprinklerforum mailing > list [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Benjamin Young
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