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


OS1 Fire Safety


(b) [F21,F44-OS1.2]Applies to assemblies required to provide fire resistance.


Intent 1:

To limit the probability of inadequate mortar density, which could lead to the excessive shrinkage, cracking and premature failure of mortar joints.

Where masonry construction is required to provide fire resistance, this is to limit the probability of compromised fire resistance of the assembly, which could lead to harm to persons.

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