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9.25.2.2.(1) | Application | Intent |
| OH1 | OS2 |
| Objective | OS2 Structural Safety |
| Attribution | |
| Application | Application 1: Thermal insulation required to be installed to provide
resistance to heat transfer through walls, ceilings, roofs and floors separating
heated space from unheated space, the exterior air or the exterior soil,
in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions:
except as stated in Sentence 9.25.2.2.(2), which applies to
flame-spread properties.
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| Intent | Intent 1: To limit the probability that the thermal performance of
required thermal insulation will fall significantly below expectations, which
could lead to an inability to control heat transfer through assemblies, which
could lead to excessively low temperatures of interior surfaces or within
assemblies, which could lead to condensation, which could lead to deterioration,
which could lead to compromised structural integrity of assemblies acting
as environmental separators, which could lead to harm to persons.
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