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9.29.9.3.(1)
ApplicationIntent
OS2OS1OH1OP2
ObjectiveOP2 Structural Sufficiency of the Building
Attribution
[F20-OP2.1] [F20,F22-OP2.4]
Application
Application 1: 
Type, minimum length, and maximum spacing of nails for OSB, waferboard and particleboard interior wall and ceiling finishes, 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 inadequate support for particleboard, OSB or waferboard as an interior finish, 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:
  • 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 provide the substrate for 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:
  • the space being unsuitable for its intended use,
  • compromised operation of doors or windows, or
  • damage to the building.
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