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5.1.4.1.(1)
OH1OS3OH4OS2OS1OS2OH1OH4
ObjectiveOS2 Structural Safety
Attribution
Application
Application 1: 
Resistance to deterioration and structural 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.
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Intent
Intent 1: 
To limit the probability of an inadequate resistance to expected structural loads and the effects of those loads, and to deterioration, which could lead to:
  • insufficient strength, which could lead to:
    • compromised structural integrity, or
    • damage to or deterioration of building elements, or
  • the displacement, deflection or vibration of required environmental separation elements, which could lead to:
    • air infiltration and exfiltration,
    • condensation,
    • precipitation ingress, or
    • moisture ingress from the ground.
This is to limit the probability of structural failure, which could lead to harm to persons.
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