What's the purpose of the eggcrate panels? Point is, if the eggcrate panels are for HVAC purposes and the space above the ceiling is a supply or return air plenum space, then that can affect the sprinkler or not to sprinkler decision. You don't typically put sprinklers inside a plenum space. But if the eggcrate panels are just decorative and the space above the ceiling is open to adjacent rooms or spaces then he MIGHT be justified in asking for additional protection above the ceiling. He may be seeing something or know something we don't on this side of the old computer screen.
Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of GAYLE KNOWLES Sent: Wednesday, June 01, 2011 4:27 PM To: sprinklerforum Subject: RE: openings in ceiling grid the room is a high school music room with 90 2X4 ceiling panels and only 16 of them are eggcrate panels. The 16 eggcrate 2X4 panels have a 40% opening per panel. We have pendants protecting the room but Fire Marshall thinks we need uprights. Gayle Knowles, SET Project Manager Kaufman Fire Protection Systems. Inc. PH:505-884-2447 > From: [email protected] > To: [email protected] > Date: Wed, 1 Jun 2011 13:58:56 -0600 > Subject: RE: openings in ceiling grid > > Since they are open eggcrate panels, are they using the space above for a > return or supply plenum? > > Craig L. Prahl, CET > Fire Protection > CH2MHILL > Lockwood Greene > 1500 International Drive > Spartanburg, SC 29304-0491 > Direct - 864.599.4102 > Fax - 864.599.8439 > CH2MHILL Extension 74102 > [email protected] > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of GAYLE KNOWLES > Sent: Wednesday, June 01, 2011 3:56 PM > To: sprinklerforum > Subject: openings in ceiling grid > > > Sorry if this has come up before....we have a music room with drop in ceiling > 2X4 tile, but > a few of the tiles are an eggcrate style(40% open per tile). Fire Marshall > would like us to direct him to the specific > section of NFPA 13 (2010) that allows us not to put uprights above this room. > We can only find > section 8.15.1.2.1.1 explanation in handbook stating "evaluation of size and > number of openings > in relation to the overall area of the ceiling is important". This may be a > decision he as AHJ will > need to make. Structure above ceiling, of course, non-combustible. > > Thanks for any help to keep us from adding uprights in this room > > Gayle Knowles, SET > Project Manager > Kaufman Fire Protection Systems. Inc. > PH:505-884-2447 > > > _______________________________________________ > 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) _______________________________________________ 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)
