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Hello, I was hoping someone could help me out! I know 2016 NFPA 13 requires seismic bracing on sprinkler mains with very little chance of omission, but when it comes to CPVC piping I have a tough time agreeing with this when it comes to 1" and 3/4" pipe when the pipe is attached directly to the...

I am a little torn on two different ideas. With NFPA 13 11.3.1.3 (3) -room size is 11'-0" x 14'-6" = 159.5ft² -one (1) fire sprinkler x .10 = 15.95 -so calculate the room within the design area @ 15.95gpm or The fire sprinkler in the bedroom is spaced @ 14'x18' (252ft²) is less square footage...

@cdafd - yes, to use the 16'x16' used for the 14'x18' spacing

Good Morning everyone, Within a apartment building unit, is it allowed with a 4 head calculation @ 16'x16' (256ft²) in a bedroom space the single fire sprinkler head to a "area room design" and space the fire sprinkler at 14'x18' (252ft²)? I have used this method in the past without being...

I don't see a UL listing on that data sheet and most AHJ's will NOT approve a product without a UL listing. I almost always use the 3M 15WB+.

I just got a call from a forman who just failed an inspection because of a small shadow area in a bathroom in a residential unit. I know NFPA 13 does not allow "shadow areas" like 13r or 13d but was hoping somebody could point me in the right direction to allow a small shadow. Please see the...