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 a chemical reaction with concrete or mortar, which could lead to the premature failure of aluminum flashing.

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.

Top of Page