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9.24.3.2.(4) | Application | Intent |
OS1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Minimum upward extension and fastening of 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 the inadequate attachment of
upper runners to studs, which could lead to framing of inadequate stiffness
to resist forces exerted by the twisting of door frames on exposure to heat
from a fire, which could lead to the premature failure of fire-rated assemblies,
which could lead to harm to persons. |
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