Todd, Simply depends on the construction. Wood 3' or <, 130 sf; wood > 3', 168 sf; just about everything else, 225 sf. You can even use EC's. There is also the combustible concealed space rule. These can be used up to 144 sf.
Bob Knight, CET III 208-318-3057 www.firebyknight.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd Williams Sent: Thursday, June 14, 2012 9:05 AM To: [email protected] Subject: Drop out ceiling tile area Is there a restriction on the square footage that can be protected by a system above a drop-out ceiling? A fire marshal was telling me that there is a restriction in NFPA 13, but I've never heard of it and can't find it. Thoughts? Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2180 / Virus Database: 2433/5069 - Release Date: 06/14/12 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
