I guess the big question then is standard 5/8" GWB considered limited or non-combustible. If memory serves me correct I believe it has a 1hour fire rating?
Brian Harris, CET BVS Systems Inc. bvssytemsinc.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Reed A. Roisum, C.E.T. Sent: Monday, August 05, 2013 10:38 AM To: [email protected] Subject: RE: Special Situations (8.15) Correct. If indeed the plenum created is a noncombustible concealed space. Reed A. Roisum, C.E.T. | Karges-Faulconbridge, Inc. | Fire Protection Designer | Fargo, ND | direct: 701.552.9903 | mobile: 701.388.1352 | http://www.kfiengineers.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brian Harris Sent: Monday, August 05, 2013 9:27 AM To: [email protected] Subject: Special Situations (8.15) All- I recently finished a design for a wood structure day care facility, (1) level of attic heads and (1) level of ceiling heads. The GC has now decided in an effort to save money on the HVAC to attach drywall to the bottom of the wood joist and use the area between this drywall and the suspended ceiling as a return air plenum. If I'm reading 8.1.1.2.1 & 8.15.1.2.2 correctly I do not need to add a 3rd level of protection in this "plenum" area correct? Brian Harris, CET BVS Systems Inc. Sprinkler Division bvssystemsinc.com<http://bvssystemsinc.com/> Phone: 704.896.9989 Fax: 704.896.1935 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ _______________________________________________ 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
