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9.24.3.2.(5) | Application | Intent |
OS1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Provision of a minimum size of filler piece for framing
above doors installed in steel door frames in non-loadbearing exterior
and interior fire separations required to have
a fire-resistance rating, in buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9]. |
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Intent | Intent 1: To limit the probability of an inadequate resistance to
the conduction of heat through steel door frames, which could lead to an excessive
rise in the temperature of steel framing members above doors during a fire,
which could lead to the twisting or warping of runners, which could lead to
the premature failure of fire-rated assemblies, which could lead to harm to
persons. |
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