Sounds like wood joist construction, in which case your area of coverage will be significantly lower than the 168/225 you noted. Could it be panel construction - bays no greater than 300 sf? Does a nominal 3 x 9 meet the intent and definition of "member capable of trapping heat?" (Probably not ...)
SL -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Martinez, Dewayne Sent: Monday, August 04, 2014 11:02 AM To: [email protected] Subject: Obstructed or un=obstructed construction NFPA13 (07ed) 3in wide / 9in deep wood beams 7ft on center. Obstructed or un-obstructed construction? Just want to check because 168sf vs 225sf spacing makes a big difference on this project. Thanks, Dewayne _______________________________________________ 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
