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3.2.3.17.(2) | Application | Intent |
OS1 | OP1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Canopies separating openings between storeys in
the exterior wall of a building, where:
This applies to buildings described
in Sentence 1.3.3.2.(1) of Division A.
Application 2: This also applies to the protection of openings with combustible vertical glazing, as stated in Clause 3.1.5.4.(4)(b).
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Intent | Intent 1: To supersede the requirements of Sentence 3.2.3.17.(1),
which would otherwise require a canopy, if certain conditions are met [the
exterior wall of the upper storey is recessed not less than 1 m behind
the exterior wall containing the opening in the lower storey]. This [the wall
recessing] is to limit the probability of the spread of fire from one storey
to the storey above through openings in the exterior wall during the time
required to achieve occupant safety and for emergency responders to perform
their duties, which could lead to harm to persons in the storey above.
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