NFPA 13 (2019 ED) 19.3.3.2.4 Sloped Ceilings requires a 30% increase in
design area when the roof slope exceeds 2 in 12. I have always thought
that this was for quick response sprinklers. I've actually never had a
situation where QR weren't being used, so I haven't given this any
thought before. Now I have a non storage project with a 3 in 12 roof
slope using standard response sprinklers, OH2.
Is the 30% increase required for both quick and standard response
sprinklers?
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