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5.1.4.1.(1)
ApplicationIntent
OH1OS3OH4OS2OS1OS2OH1OH4
ObjectiveOH4 Vibration and Deflection Limitation
Attribution
[F61-OH4]
Application
Application 1: 
Resistance to deterioration and structural and environmental loads, as well as the effects of those loads, of 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].
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:
  • the cladding assembly is not addressed in Section 9.27., or
  • the cladding assembly does not comply with the prescriptive requirements of Section 9.27.
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:
  • incorporates low permeance materials that act as other than cladding or that are installed on the warm side of the assembly, and
  • is more susceptible to condensation [see Sentences 9.25.1.2.(4) and (5) for combinations of interior and exterior environmental conditions that create a higher risk for condensation].
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 inadequate resistance to rot, corrosion or freeze-thaw cycling, which could lead to damage or deterioration, which could lead to vibration or deflection of floor assemblies or elements that support floor assemblies, which could lead to negative effects on the psychological well-being of persons.
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