9.24.2.4.(1)

Objective

OS1 Fire Safety

Attribution

Intent

Intent 1:

To limit the probability of an inadequate resistance to forces exerted by the warping of rated doors under fire loads, which could lead to:

  • the opening of such doors, or
  • the opening of gaps between such doors and their frames.

This is to limit the probability of compromised fire resistance of the assembly, which could lead to harm to persons.

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