First thing is find out why they have the egg crates to begin with. If it's not necessary for acoustics (music room) or lighting or some other required purpose can they do with regular tiles? If so then the FM is happy for the cost of 16 2x4 tiles. If they absolutely, positively have to be there and the above construction is non-combustible then I don't think (opinion) that thee really is an issue.
On Wed, Jun 1, 2011 at 1:26 PM, GAYLE KNOWLES <[email protected]> wrote: > > 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) > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ 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)
