I am reviewing a set of fire suppression drawings from another engineer that is working as a sub to the sprinkler contractor. We created an outline of the fire suppression requirements (a performance spec) and then the contractor hired another engineer to finish the design.
The building is a 6-story wood frame residential project.
There are two exit stairs each with a Class I Standpipe and 2.5-inch fire hose connection (FHC).
The building is an 'L' shape and the total travel distance from one FHC to the other is approximately 300-ft (91m).
There is a 2-hour fire-resistance-rated wall part way along the corridor (124-ft from one FHC, 174-ft from the other).
The contractor's engineer is calling for an additional third standpipe next to the 2-hour rated wall - is this required or not?
I'm not sure how to interpret Sections 188.8.131.52 and 184.108.40.206.1 of NFPA-14. The project is in BC, Canada; and we're using NFPA-14 (2013 Edition). I have attached a markup of a typical floor plan.
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