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9.10.17.5.(1) | Application | Intent |
OS1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Maximum surface flame-spread
rating of wall surfaces in unsprinklered public
corridors. This applies to buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9].
Application 2: This also applies to:
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Intent | Intent 1: To exempt wall surfaces in unsprinklered public corridors
from the requirements of Sentence 9.10.17.1.(1), which would otherwise
limit surface flame-spread rating to 150, and require a lower maximum flame-spread
rating on certain portions of the surface areas, on the basis that the lower
rating is needed in these locations to protect persons during evacuation.
Intent 2: To limit the probability that certain finishes having an
inappropriately high flame-spread property will be used in public corridors
that are part of a means of egress, which could lead to the spread of fire
across the exposed surfaces of the finishes, which could lead to delays in
the evacuation or movement of persons to a safe place, which could lead to
harm to persons. |
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