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9.27.10.1.(2)
ApplicationIntent
OH1OS2
ObjectiveOS2 Structural Safety
Attribution
[F20-OS2.1,OS2.3]
[F22-OS2.3,OS2.4,OS2.5] Applies where panel-type cladding is installed to provide the required bracing.
Application
Application 1: 
Hardboard cladding that is not factory-finished, on buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability that the performance of hardboard cladding that is not factory-finished will fall significantly below expectations, which could lead to:
  • the premature failure of hardboard cladding, or
  • where panel-type siding is installed as bracing to satisfy Subclause 9.23.10.2.(2)(b)(i), an inability to resist lateral loads, which could lead to racking of exterior walls.
This is to limit the probability of the displacement of cladding, trim and flashing, opening of joints or failure of caulking, which could lead to:
  • precipitation or meltwater ingress, which could lead to deterioration, which could lead to the structural failure of exterior walls or elements protected by exterior walls, or
  • falling cladding components.
This is to limit the probability of harm to persons.
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