The Branch is of the opinion that Article 3.2.2.12. waives the
fire-resistance rating of roof assemblies when all the following
three conditions are satisfied:
The building is protected by an automatic sprinkler system
which has been designed, constructed, installed and tested in
conformance with NFPA 13-1991, "Installation of Sprinkler
Systems".
The sprinkler system provided is electrically supervised to
indicate a trouble signal on the building annunciator when any
one or more of the seven conditions as described in Sentence
3.2.4.16.(5) occur.
A signal is transmitted to the fire department by way of any
one of the three systems listed under Sentence 3.2.4.7.(3)
upon operation of the sprinkler system, i.e., detection of a
flow of water in the sprinkler system.
This information is provided as a public service, but we cannot guarantee that the
information is current or accurate. Readers should verify the information before acting
on it.
