ARCHIVED - 9.10.13.13.(1)

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9.10.13.13.(1)


Objective	OS1 Fire Safety
Attribution	[F03-OS1.2]
Application	Application 1: Installation of fire dampers in ducts that penetrate assemblies required to be fire separations with a fire-resistance rating. This applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9]. Exceptions: except as exempted in: Sentence 9.10.5.1.(4), which applies to openings that lead to ducts within a membrane ceiling that forms part of an assembly assigned a fire-resistance rating, Sentence 9.10.13.13.(2), which applies to noncombustible branch ducts that pierce a required fire separation where the duct has a melting point not below 760°C has a cross-sectional area less than 130 cm², and supplies only air-conditioning units or combined air-conditioning and heating units discharging air at not more than 1.2 m above the floor, Sentence 9.10.13.13.(3), which applies to noncombustible branch ducts that pierce a required fire separation around an exhaust duct riser in which the air flow is upward, Sentence 9.10.13.13.(4), which applies to noncombustible ducts that penetrate a fire separation separating a vertical service space from the remainder of the building, and Sentence 9.10.13.13.(5), which applies to ducts serving commercial cooking equipment.
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Intent	Intent 1: To limit the probability that fire will spread from one fire compartment to another fire compartment through openings in a fire separation, which could lead to harm to persons in the other fire compartment. Intent 2: To expand the application of Articles 3.1.8.4. and 3.1.8.9. to Part 9 buildings.
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