He's providing DC for different response elements of the sprinklers. He referenced NFPA13 2007 8.4.6.4.
I don't think the IFC applies in the '910.3.5 Where required by (IFC 2012) Table 910.3, draft curtains shall be installed on the underside of the roof in accordance with this section.' IFC Table doesn't require DC's for this purpose. Thus the 4' or 6' deep would not apply IMHO. I'd agree if there is more to the story and the DC's are there for both response element and smoke and heat vents. Chris Cahill, PE* Senior Fire Protection Engineer, Aviation & Facilities Group Burns & McDonnell 8201 Norman Center Drive Bloomington, MN 55437 Phone: 952.656.3652 Fax: 952.229.2923 [email protected] www.burnsmcd.com Proud to be one of FORTUNE's 100 Best Companies to Work For *Registered in: MN -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bill Brooks Sent: Thursday, September 20, 2012 11:49 AM To: [email protected] Subject: RE: Draft curtain See 2009 International Fire Code for some guidelines/requirements before you confirm the depth of the curtain or the construction. Just using this reference as an example since you didn't specify the applicable code in this jurisdiction. I don't think the cover on both sides is necessary. Bill Brooks William N. Brooks, P.E. Brooks Fire Protection Engineering Inc. 372 Wilett Drive Severna Park, MD 21146-1904 410-544-3620 410-544-3032 FAX 412-400-6528 Cell -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Byron Weisz - Cen-Cal Fire Systems Sent: Thursday, September 20, 2012 12:22 PM To: [email protected] Subject: RE: Draft curtain That is a Building Code issue Byron Weisz Cen-Cal Fire Systems, Inc. 1615 So. Stockton St. Lodi, CA. 95240 Ph. (209) 334-9119 Fax (209) 334-2923 [email protected] This message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged and/or confidential. If you are not the intended recipient any use, dissemination, distribution, or copying of this communication and attachments is strictly prohibited. Thank you. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bobby Gillett Sent: Thursday, September 20, 2012 8:50 AM To: [email protected] Subject: Draft curtain Importance: High We have a project that we are demo'ing a pipe schedule system and installing a ESFR system for storage. There is an adjacent area of the building that will have a pipe schedule system w/standard response sprinklers in it. Per NFPA13 2007 8.4.6.4 the owner will provide a draft curtain since a wall is out of the question in this area. The draft curtain will be 2'-0 down from the deck constructed of non-combustible materials and sealed at the deck (probably smoke caulk). The owner is going to provide a 4'-0 clear aisle centered on the curtain (2'-0 each way). The contractor plans on using metal studs and roof decking material for the curtain. The question is, do the studs have to be covered each side or is putting the decking on one side sufficient? I didn't see anything as far as thickness of curtain or that would lead me to believe it would have to be covered each side. Thank you, Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell <http://www.keyfireprotection.com> www.keyfireprotection.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachment s/20120920/20d1b142/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
