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)
