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5.1.4.2.(1) | Application | Intent |
OH1 | OS3 | OH4 | OS2 | OS1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Application 2: This also applies to cladding assemblies installed
on buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] where:
Application 3: This also applies to the position of low air and vapour
permeance materials within the building assembly
relative to the position of materials providing thermal resistance in the
assemblies of buildings to which Part 9 applies
[see Sentence 1.3.3.3.(1) of Division A for application of Part 9], where
the building assembly:
Application 4: This also applies to the design of vapour
barriers in buildings to which Part 9 applies
[see Sentence 1.3.3.3.(1) of Division A for application of Part 9], where
the building assembly is more susceptible to condensation
[see Sentences 9.25.4.2.(2) and (3) for combinations of interior and exterior
environmental conditions that create a higher risk for condensation].
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Intent | Intent 1: To limit the probability of material incompatibility or
a high rate of deterioration under expected environmental or structural loads,
which could lead to the premature failure of building components and assemblies.
Where required life safety systems are incorporated in environmental
separators, this is to limit the probability of compromised operation of temperature-sensitive
or moisture-sensitive life safety systems, which could lead to harm to persons.
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