I'm working on a public storage facility and i have a concern with the design.The design is a wet based sprinkler system,
however there is a cavity that seems unprotected attached are sketches
Ok not to clear on what area you are talking about. If you could redraw and make it clearer.
So I will give you two answers.
It appears the ceiling in the corridor, as you walk, is tight all the way across. If so no problem there. But if you walk into one of the storage units, and the is an open area, that you can see, above the corridor, either sprinklers are needed in that "void" area, or a solid vertical wall to keep heat and smoke from getting into it.
If not open, as if you are standing in a storage unit, and the storage unit ceiling is tight,
And there is no combustible construction, which it looks like all metal, than no sprinklers are required.
So which one of the above is closer???
I normally do not look for validation, just trying to clarify the answer.
OHHH I am not an engineer, so you can discount my reply if you want, and I cannot do math.
Lawrence K. Woods
LKW Engineering, LLC
28 Swan Ct.
Jersey City, NJ 07305
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All I can say at this time is that all spaces in the building must be sprinklered to comply with NFPA 13. However, even concealed spaces must be sprinklered unless the exemptions in Section 8.15 of NFPA 13 apply.
Your sketch did not tell me much. Your question needs a lot of discovery of the facts before a meaningful answer can be found.
I can not speculate what the local building codes and regulations are for sprinklers for the storage facility.
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