9.23.17.4.(2)

Objective

OS3 Safety in Use

Attribution

[F22-OS3.1]Applies to floors and elements that support floors.
[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 discontinuity in the sheathing, which could lead to an inability to resist expected lateral or gravity loads, which could lead to the excessive movement, deformation or failure of exterior walls.

This is to limit the probability of failure of required environmental separation elements, which could lead to deterioration, which could lead to:

  • the excessive deflection and vibration of floors, which could lead to persons losing their balance, tripping or falling, or
  • the excessive movement or deformation of walls, which could lead to compromised operation of doors or windows required for egress in an emergency.

This is to limit the probability of harm to persons.

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