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A project that contains a light hazard office space with a dry-pipe sprinkler system, and a 900 sqft area with sloped ceilings (about a 5/12 pitch). Per NFPA 13, the remote area should increase by 30% for the dry system (NFPA 13-2013 Section 11.2.3.2.5) and another 30% for the slope (NFPA 13-2013 Section 11.2.3.2.4). However, does the fact that only 900 sqft of the entire remote area is sloped impact the overall size of the remote area at all? Curious in other's opinions.
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1 Comment
Pete
8/31/2017 09:17:35 pm
It is my understanding that the increase in area for sloped ceilings is due to rather unpredictable pattern of sprinkler operations (see commentary in NFPA 13, Section 11.2.3.2.4). Since the sloped ceiling area (900 sf) is less than your system design area (1950 sf), it is my understanding that the additional area increase is not necessary. Leave a Reply. |
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