Sentence 5.9.3.4.(2)

  1. OH1
  2. OS2
  3. OS1

Objective

OS1 Fire Safety

Attribution

[F55-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 that installed assemblies will not be sufficiently airtight, which could lead to an inadequate control of heat loss due to air mass transfer, which could lead to freezing, which could lead to compromised operation of temperature-sensitive life safety systems, which could lead to harm to persons.

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