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9.33.6.6.(1) | Application | Intent |
OS1 | OP1 |
Objective | OP1 Fire Protection of the Building |
Attribution | |
Application | Application 1: Fire stopping of enclosed spaces between heating supply ducts in walls and floors, and construction
material, in air duct distribution systems serving heating systems in which
the rated heat input does not exceed 120 kW and serving only
one dwelling unit, in 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 ventilation ducts and their fittings,
as stated in Sentence 9.32.3.11.(1). |
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Intent | Intent 1: To limit the probability of the spread of fire and smoke
to other parts of the building by way of the concealed space, which could
lead to damage to the building. |
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