A non-combustible building has an 8-ft high space above an acoustic tile ceiling with a 30-inch wide expanded steel catwalk that is accessible from a stair shaft by a locked door.
The space is congested with building services, such as ducts, cables, and cast iron plumbing.
Does the NFPA 13-2019 188.8.131.52 exception apply?
NFPA 13-2019 184.108.40.206 (220.127.116.11.2 in 2016) Concealed spaces of noncombustible and limited-combustible construction with limited access and not permitting occupancy or storage of combustibles shall not require sprinkler protection.
Thanks in advance.
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