That's when you apply 8.8.4.1.1.4 (B) and 8.8.7(2013)? Having ceiling pockets sort of implies having more than one plane. To put this in perspective, this ceiling configuration covers almost 73,000 sq ft and is about 24 feet above the floor. The ceiling pockets are about 60 to 100 cubic feet each (well under the 1000) and are about 20 feet apart.
ed -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of IPA Sent: Wednesday, July 15, 2015 12:40 PM To: [email protected] Subject: Re: ceilings with varying degrees of slope 3.3.5 Ceiling Types. 3.3.5.1 Flat Ceiling. A continuous ceiling in a single plane. I don't think anyone would look into the room you're describing and say "hey look at that flat ceiling!". On Wed, Jul 15, 2015 at 10:30 AM, Brian Harris <[email protected]> wrote: > I think the key is the 36" vertical change. > > Brian Harris, CET > BVS Systems Inc. > bvssytemsinc.com > > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of > [email protected] > Sent: Wednesday, July 15, 2015 1:20 PM > To: [email protected] > Subject: RE: ceilings with varying degrees of slope > > That's what we were thinking, but the figures show a flat, level > ceiling, whereas ours were curved. We were hesitant to make that jump > in interpreting sloping vs. flat concept. > > Ed > Aero > > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of Brian > Harris > Sent: Wednesday, July 15, 2015 9:54 AM > To: [email protected] > Subject: RE: ceilings with varying degrees of slope > > Take a look at 8.8.4.1.1.4 (2007), you should be fine so long as you > don't start getting into unprotected ceiling pockets.... > > Brian Harris, CET > BVS Systems Inc. > bvssytemsinc.com > > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of > [email protected] > Sent: Wednesday, July 15, 2015 12:52 PM > To: [email protected] > Subject: RE: ceilings with varying degrees of slope > > It's about 15 inches > > Ed > Aero Automatic Sprinkler > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of Brian > Harris > Sent: Wednesday, July 15, 2015 9:49 AM > To: [email protected] > Subject: RE: ceilings with varying degrees of slope > > What's the difference in vertical height between the "flat" ceiling > and the high point of the "curved" ceiling? > > Brian Harris, CET > BVS Systems Inc. > bvssytemsinc.com > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of > [email protected] > Sent: Wednesday, July 15, 2015 12:33 PM > To: [email protected] > Subject: ceilings with varying degrees of slope > > Good morning all, > We have a situation where there are multiple sections of ceilings that > start off flat/level for several feet and then curve upwards with a > pitch that will exceed 2:12 at some point in the curve. This situation > occurs in a repeating pattern over a large section of floor area. At > the top of the curve there is a small slot that serves as a return air > opening. The design intent was to use concealed, quick response, > ordinary hazard, extended coverage sprinklers located in the flat part > of the ceiling. The question is "this a flat ceiling?". Does the > portion of the ceiling that exceeds > 2:12 nullify the use of the flat ceiling design? > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > _______________________________________________ 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
