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9.30.2.2.(1) | Application | Intent |
OS3 | OS2 | OH1 |
Objective | OH1 Indoor Conditions |
Attribution | |
Application | Application 1: Minimum thickness and properties of panel-type underlay
in floors, 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 9.30.2.2.(2), which applies to
the minimum thickness of panel-type underlay under ceramic tile applied with
adhesive.
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Intent | Intent 1: To limit the probability:
This is to limit the probability that the
underlay will be unable to bridge any irregularities in the subfloor and will
telegraph them to the finished flooring, which could lead to the displacement
or cracking of finished flooring.
Where finished flooring is required to provide water resistance,
this is to limit the probability of the ingress of water into the underlay
and the subfloor, which could lead to:
This is to limit the probability of negative effects on the air
quality of indoor spaces, which could lead to harm to persons.
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