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3.6.3.1.(3) | Application | Intent |
OS1 | OP1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Minimum fire-resistance rating of
the construction of an enclosure at the lowest level of a vertical
service space that does not extend to the bottom of a building,
in buildings described in Sentence 1.3.3.2.(1) of Division A. Application 2: This also applies to chutes and shafts in buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9], as stated in Sentence 9.10.1.2.(7), except where the chute
or shaft is entirely contained within a dwelling unit.
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Intent | Intent 1: To limit the probability that fire will spread from the
storey at the lowest level of the vertical service space to another storey
by means of the vertical service space, which could lead to harm to persons
in the other storey. |
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