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3.4.3.4.(3) | Application | Intent |
OS3 | OP1 | OS1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Minimum headroom clearance for doorways.
This applies to exits serving floor
areas that are intended for occupancies,
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:
Exceptions:
except as stated in:
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Intent | Intent 1: To supersede the requirements of Sentence 3.4.3.4.(1) for
a minimum headroom clearance of 2 100 mm and permit a relaxation
in the headroom clearance for doorways, on the basis that the small reduction
permitted will have a negligible effect on the use of the doorways during
a fire situation. This is to limit the probability that
exits will have insufficient doorway heights, which could lead to emergency
responders being delayed or ineffective in carrying out their emergency response
operations, which could lead to the spread of fire, which could lead to harm
to persons.
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