Brian, NFPA and NFA seminars. The definition of 13R is for up to and including four floors. It doesn't prohibit the building from having more floors just like if the first floor was mercantile or business (like a hotel). You would design the first floor, fifth floor, and attic as NFPA 13, with the second-fourth per NFPA 13R. As Art stated it probably makes more sense to design all 13 using the dwelling unit sections. The attic will probably be the most demanding (and dry) so your design criteria would be 2535 @ 0.10 (assuming pitch). Once you go over four stories you end up losing the exception of attic sprinklers.
Duane From: Sprinklerforum [mailto:[email protected]] On Behalf Of Brian Harris Sent: Thursday, January 11, 2018 2:55 PM To: [email protected]<mailto:[email protected]> Subject: RE: Apartment Crawl Space Duane- That's an interesting thought. What section in 13 ? Brian Harris, CET BVS Systems Inc. bvssytemsinc.com<http://bvssystemsinc.com/> From: Sprinklerforum [mailto:[email protected]] On Behalf Of Fox, Duane T. (FireMarshal) Sent: Thursday, January 11, 2018 2:52 PM To: '[email protected]' Subject: RE: Apartment Crawl Space According to NFPA you can do a 13-R for the first four floors and a 13 system on the 5th floor and attic. I think you need to look at the IBC/IRC to see if there are building code requirements in the crawl space (assuming a normal crawl space). Duane T. Fox, Jr., CFPS, CFI, CFPE Asst Chief, Technical Services DE State Fire Marshal's Office 302-856-5298 From: Sprinklerforum [mailto:[email protected]] On Behalf Of Brian Harris Sent: Thursday, January 11, 2018 2:30 PM To: [email protected]<mailto:[email protected]> Subject: Apartment Crawl Space Looking at a (5) story apartment building so I assume it would need to be per NFPA-13 correct? With that being said is there anything in the Standard that addresses the crawl space underneath? Concealed Space? Brian Harris, CET BVS Systems Inc. Design Manager bvssystemsinc.com<http://bvssystemsinc.com/> Phone: 704.896.9989 Fax: 704.896.1935
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