Sentence 9.20.7.5.(1)

  1. OH1
  2. OS2
  3. OP2
  4. OS1
  5. OH4
  6. OS3

Objective

OS1 Fire Safety

Attribution

[F20-OS1.2]Applies to assemblies required to provide fire resistance.

Intent

Intent 1:

To limit the probability that face shells, which provide most of the loadbearing capacity of hollow units, will be removed, which could lead to an inability to accommodate vertical and horizontal loads, which could lead to cracking.

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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