5.4.1.2.(3)

Objective

OS1 Fire Safety

Attribution

[F61,F51,F63-OS1.4]Applies where required life safety systems are incorporated in environmental separators.

Intent

Intent 1:

Where required life safety systems are incorporated in environmental separators, to limit the probability of the inadequate control of:

  • total heat loss or gain due to air mass transfer,
  • airborne vapour transfer from the interior above ground and from the exterior below ground, or
  • precipitation ingress due to air pressure differences.

This is to limit the probability of compromised operation of temperature-sensitive or moisture-sensitive life safety systems, which could lead to harm to persons.

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