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9.10.13.2.(2)
OS1OP1
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Maximum clearances beneath and at the sides and top of doors described in Sentence 9.10.13.2.(1), which applies to 45-mm-thick, solid-core wood doors used as closures in fire separations, where the doors conform to CAN4-S113, “Wood Core Doors Meeting the Performance Required by CAN4-S104 for Twenty Minute Fire-Rated Closure Assemblies,” and:
This applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To supersede the clearances stated in NFPA 80, which is referred to in Sentence 9.10.13.1.(1), in order to limit the probability that fire will spread through gaps between a door and its frame, which could lead to harm to persons in the area on the other side of the fire compartment.
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