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9.29.9.2.(5)
ApplicationIntent
OS2OP2OH1OS1
ObjectiveOS2 Structural Safety
Attribution
[F20-OS2.1]
[F20,F22-OS2.4,OS2.5] Applies where interior finishes contribute to the required bracing or lateral support for studs.
[F20,F22-OS2.3] Applies where interior finishes support or serve as required environmental separation elements.
Application
Application 1: 
Panel marks on interior wall and ceiling finishes of OSB conforming to CAN/CSA-O325.0, “Construction Sheathing,” in 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 of installing interior finishes of inadequate strength or rigidity, which could lead to an inability to resist expected impact, gravity or lateral loads.
This is to limit the probability of the deformation or detachment of interior finishes, which could lead to:
  • falling of finishes,
  • where interior finishes contribute to the required bracing or lateral support for studs, the buckling or racking of walls, which could lead to structural failure, or
  • where interior finishes support or serve as required environmental separation elements, the excessive deformation, displacement or failure of such elements, which could lead to deterioration, which could lead to further compromised structural integrity.
This is to limit the probability of harm to persons.
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