9.24.3.3.(1)

Objective

OS3 Safety in Use

Attribution

[F22-OS3.7]Applies to walls, and elements that support walls, that contain doors or windows required for emergency egress.

Intent

Intent 1:

To limit the probability of inadequate strength or stiffness, or an insufficient surface for the attachment of cladding, sheathing or interior finish materials, which could lead to an inability to resist expected lateral and gravity loads.

This is to limit the probability of the excessive movement or deformation of walls, which could lead to:

  • the structural failure of walls, or
  • for exterior walls, the excessive deformation, displacement or failure of required environmental separation elements, which could lead to deterioration.

This is to limit the probability of compromised operation of doors or windows required for egress in an emergency, which could lead to harm to persons.

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