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9.33.6.4.(4) | Application | Intent |
| OS1 | OP1 |
| Objective | OS1 Fire Safety |
| Attribution | |
| Application | Application 1: Combustible coverings
and linings and associated adhesives and insulation of air ducts, plenums and
other parts of 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 that the performance of combustible
coverings or linings will fall significantly below expectations, which could
lead to their contributing to the spread of fire and smoke throughout the
building, which could lead to harm to persons. |
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