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


OS1 Fire Safety


[F80-OS1.2]Applies to assemblies required to provide fire resistance.


Intent 1:

To limit the probability of using inappropriate flashing materials or installing an inadequate thickness of flashing, which could lead to premature failure of flashing upon exposure to moisture, sunlight, temperature extremes or mechanical stresses.

Where masonry construction is required to provide fire resistance, 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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