But what about treating it as a mixed use, NONSEPARATED ocupancies. As such, no separation and since 903.2.9 does not require the S-1 to be sprinklered (unless larger than 12,000 sf) NFPA 13 is not required but with 903.2.8 requiring the residential portion to be sprinklered (and 508.3.1 requiring the most restrictive chap 9 requirements to apply to both occupancies) why wouldn't NFPA 13R still apply to both? It is within the scope of 13R to address storage for the residents to be protected as Outside the Dwelling unit.

One could argue (or say a literal interpretation would be) if you did separate the occupancies, you would still have to sprinkler the whole building but now you would be required to use NFPA 13 (and the associated requirements for concealed spaces and hose stream demand) in the S-1 portion of the building.

Where's the holes (based on the IBC and I used the 2009 ed)??

Roland



On Sep 19, 2012, at 11:18 AM, Steve Leyton wrote:

Forumites:



A fire official here in SoCal asked me to forward his comments on
current topics, as he's having a problem getting his replies to post to
the forum:



*       According to 2010 California Building Code Section 310 halfway
houses are classified as either Group R-2.1 or Group R-4 occupancies
depending on the ambulatory status of the clients. Referring then to
Section 903.2.8 it specifically prohibits a 13D system in Group R-2.1 &
R-4 occupancies. Halfway houses must utilize a full 13 system.



*       Basement Storage in Multi-Residential: According to the Building
Code the common storage area located in the basement of a Group R-2
multi-residential building such as apartments or condos would be a Group
S-1 occupancy which must be separated from the R-2 by one-hour fire
barriers. While the R-2 may be protected by a 13R system, the S-1 must
be protected by a full 13 system.



Galen Taylor

Fire Prevention Engineering Assistant

County of Los Angeles Fire Department

Fire Prevention Engineering - Special Projects

323-890-4125

[email protected]





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