Sentence 9.20.13.12.(1)

  1. OH1
  2. OS2
  3. OP2
  4. OS1

Objective

OS1 Fire Safety

Attribution

[F61,F62-OS1.2]Applies to assemblies required to provide fire resistance.

Intent

Intent 1:

To limit the probability of water running back under window sills or down the face of masonry, which could lead to water ingress.

Where masonry veneer is installed to provide the required noncombustible cladding, this is to limit the probability of deterioration, which could lead to compromised fire resistance of the assembly, which could lead to harm to persons.

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