NFPA 13R hose allowance question
NFPA 13R hose allowance question
(OP)
Hello, I am using the 2010 edition of NFPA 13R to design a retirement home. Building is zoned as residential. There is a small kitchen that the staff uses to prepare meals for the tenants, which is attached to a dining room. I am NFPA 13R 7.2.2 to calc the kitchen area which is Ordinary Hazard Group 2. My question is do I need to add in 250 gpm hose allowance or can I neglect the hose allowance altogether because I am designing to NFPA 13R?





RE: NFPA 13R hose allowance question
I do not think zoning matters.
In the International Building Code, this would be an I type not an R type occupancy and I believe the IBC only allows 13R for R type occupancies.
That being said, you can use residential type sprinklers in certain areas.
RE: NFPA 13R hose allowance question
With that being said, NFPA 13R does not require a hose allowance. You follow NFPA 13 for areas outside of the dwelling unit as directed per NFPA 13R. You refer to NFPA 13 for the spacing, positioning, density and obstructions. NFPA 13R does not refer you to 13 for the hose allowances. This is also why you don't have to put sprinklers in concealed spaces outside of the dwelling units. So, you would just include the domestic demand at the common point of the domestic/fire. If you have a dedicated fire line, then I just put it at the source. The domestic allowance can be estimated from the tables in the appendix of 13R.
Travis Mack
MFP Design, LLC
www.mfpdesign.com
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RE: NFPA 13R hose allowance question