We have an existing building which is being retrofit with a sprinkler system.
The building is non-combustible construction (pre-engineered metal building) that has a steel main frame, z-purlins, and below that there was a series of offices built with wood stud walls. The ceiling is hung ACT. Does 6-12 inches of exposed stud walls that extend just above the ACT ceiling then trigger the need for sprinkler protection above the ceiling? In other words, does the amount of wood construction in a ceiling space impact whether or not it's considered a combustible concealed space, and therefore would or wouldn't need protection? I have a gut feel for how I would go about this, but am not looking to skew the discussion at all. Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
4 Comments
Glenn Berger
10/9/2023 08:14:35 am
A code analysis needs to be completed to determine the real need for a sprinkler system.
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Eduardo Wells
10/9/2023 09:06:40 am
Under the 2022 edition of NFPA 13, need to refer to:
Reply
Gilbert
10/9/2023 10:21:14 am
Consult the applicable building code for the jurisdiction to determine the amount and extent of combustible materials allowed in non-combustible construction. Based on that determination, the sprinkler requirements for the construction type, use, square footage, and occupant load apply.
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Anthony
10/9/2023 03:52:28 pm
Your question:
Reply
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