Sentence 9.23.11.4.(1)

  1. OS2
  2. OP2
  3. OH1
  4. OH4
  5. OS1
  6. OS3

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 of top plates, which could lead to an inability to resist expected gravity and lateral loads, which could lead to:

  • the inadequate transfer of vertical loads to and from studs, which could lead to the excessive deflection or failure of wall plates, or
  • inadequate diaphragm action of plates, which could lead to the excessive deflection of walls.

Where walls support floors, this is to limit the probability of:

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

This is to limit the probability of harm to persons.

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