Double check your NFPA 13D scope. NFPA 13D is only applicable to buildings which are: one-family dwellings; two-family dwellings; and, manufactured homes. Per the 2007 handbook commentary to NFPA 13D 1.1: "...NFPA 13D is inappropriate for multifamily occupancies. A multifamily occupancy contains three or more dwelling units."
Apartments are normally designed to (at least) NFPA 13R, if not NFPA 13. Note if the (2006) IBC is the applicable in the jurisdiction your building is located, it affects the design of your sprinkler system. Note that IBC 903.3.1.2.1 (for balconies and decks) requires more sprinkler coverage than NFPA 13R requires; and, the requirements in IBC 903.4 may affect the choice of type of valve supervision used. David W. S. Blackwell, II, PE, CFI-I, CFPE Engineering ---------------------------------------------------------------- Office of State Fire Marshal 141 Monticello Trail Columbia, SC 29203 Phone: 803.896.9833 Fax: 803.896.9806 Email: [email protected] OSFM Website: http://www.llr.state.sc.us/firemarshal.asp ---------------------------------------------------------------- -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Karen Purvis Sent: Wednesday, November 25, 2009 8:52 AM To: [email protected] Subject: concealed space I have checked the archives and can not find what I am looking for. I have an old school building with an attic area that is not accessible and a 6' crawl space with no equipment. Building is all wood. They are redoing the building into apartments (13D). For some reason I remember someone telling me or reading that in a 13R or 13D system if the areas mentioned were net being used or accessed then they did not need to be sprinkled. Is this something I dreamed up? Karen Purvis Senior Designer Facility Systems Consultants 713 South Central Street, Suite 101 Knoxville, TN 37902 ph.865-246-0164 fax 865-246-1084 _______________________________________________ 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)
