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3.4.4.4.(3) | Application | Intent |
OS1 | OP1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Piercing of fire separations that
separate contiguous stairs described in Sentence 3.4.4.4.(2).
This applies to exits serving floor
areas that are intended for occupancy, including mezzanines as stated in Sentence 3.4.2.2.(1), in buildings described in Sentence 1.3.3.2.(1) of Division A.
Application 2: This also applies to tents and air-supported
structures, as stated in Sentences 3.1.6.1.(1) and 9.10.1.2.(1).
Exceptions:
except as stated in:
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Intent | Intent 1: To supersede the requirements of Subsections 3.1.8., 3.1.9. and 3.2.8., which would otherwise permit openings
in exit fire separations, and limit the openings to only certain penetrations,
on the basis of maintaining the integrity of exits. This
is to limit the probability that fire will spread from one exit to another
exit, which could lead to:
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