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sprinklers in skylights

sprinklers in skylights

sprinklers in skylights

(OP)
I have a question about little skylights in warehouse area. In warehouse area are ESFR K200 sprinklers. Some of skylights them are equipped with smoke vent feature.
The skylights are 3,75m2 area (1,5mx2,5m) and are slightly more than 3,0m2 from NFPA13 edition 2010 point 8.5.7.1. The distance beetwen skylights are more than 3,0m.
We think, that the sprinklers will be ommited from this skylights. What do you think about it,Is it correct?
 

RE: sprinklers in skylights

Sounds possible as long as you can maintain the maximum design spacing and instaal per listing of the sprinkler  

RE: sprinklers in skylights

In the US, automatic smoke and heat vents are not permitted in a building protected by ESFR sprinklers because of the concern of them prematurly opening which could cause an excessive number of sprinklers to operate.

Have you considered this in your design?

RE: sprinklers in skylights

Good catch Scott  

RE: sprinklers in skylights

(OP)
ok, but the smoke vents will acticate only manually. What about the sprinkler in 3,75m2 skylight?  

RE: sprinklers in skylights

Can you hit your design spacing without placing them in the skylights????

RE: sprinklers in skylights

(OP)
Yes, I can. But in NFPA13 edition 2010 point 8.5.7.1 have wrote that only in skylights to 3,0m2 sprinklers would be ommited from skylight. What about this?

RE: sprinklers in skylights

good question??

are you meeting 8.12.2.3?? section

can it meet ceiling pocket section??

RE: sprinklers in skylights

How deep are they???

RE: sprinklers in skylights

Skylights are not ceiling pockets. the two sections are not meant to be met collectively.  The NFPA committee has tried to clarify this in the later editions

RE: sprinklers in skylights

In the pocket section it did say something like noncombustible or limited, or something along that line.  Sorry do not have the section readily available

So could you say if the skylight was proven to be limited combustible it would qualify as a pocket ????

RE: sprinklers in skylights

How deep are these skylights???? V  

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