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5.4.1.2.(4) | Application | Intent |
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| Application | Application 1: Structural design of air barrier
systems in building assemblies, and interfaces
between assemblies, that are subject to air pressure loads. This
applies to building materials, components, assemblies
and their interfaces described in Sentence 5.1.2.1.(1) that are installed
in buildings to which Part 5 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 5].
Exceptions:
except as stated in Sentence 5.4.1.1.(3) and Sentence 5.4.1.2.(2),
which apply where an inadequate control of air leakage or the installation
of materials with an air leakage characteristic greater than 0.02 L/(s •
m2), measured at an air pressure difference of 75 Pa,
will not adversely affect health, safety, the intended use of the building or
the operation of building services.
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| Intent | Intent 1: To direct Code users to the general requirements in Article 5.1.4.1. and Subsection 5.2.2., which also apply to
air barrier systems subject to air pressure loads. |
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