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Walls not extending all the way to deck, what kind of protection is needed?

Question asked by coryl on May 15, 2018
Latest reply on May 16, 2018 by milt.werner

I have a situation where the walls for a small HVAC closet (100sqft) does not extend all the way to the deck. The rooms surrounding the HVAC closet has ceilings, the HVAC closet does not have a ceiling. How far outside the HVAC closet does the sprinkler protection need to extend? The space above the surrounding rooms with ceilings is non-combustible and have sprinkler protection below the ceiling. I am being told that the whole space above the ceilings need to be protected throughout the whole floor, because of the HVAC closet walls not extending to deck and not having a ceiling. Any help on this matter would be appreciated. Thanks