9.3.2.8.(1)

Objective

OS1 Fire Safety

Attribution

[F20,F22-OS1.2]Applies to assemblies required to provide fire resistance.

Intent

Intent 1:

To limit the probability of the failure to adjust spans for undersized joists, rafters, lintels or beams, which could lead to inadequate strength or rigidity, which could lead to an inability to resist expected gravity, lateral or wind uplift loads.

Where lumber is used in assemblies that are required to provide fire resistance, this is to limit the probability of the compromised fire resistance of the assembly, which could lead to harm to persons.

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