ARCHIVED - 9.23.15.1.(1)

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9.23.15.1.(1)


Objective	OH1 Indoor Conditions
Attribution	[F20,F22-OH1.1,OH1.2,OH1.3]
Application	Application 1: Continuous lumber or panel-type roof sheathing, in wood-frame constructions to which Section 9.23. applies [see Sentence 9.23.1.1.(1) for application of Section 9.23.]. Exceptions: except as stated in: Sentence 9.26.9.1.(1), which applies to wood shingled roofing, Sentence 9.26.13.2.(1), which applies to sheet metal roofing, Sentence 9.26.14.1.(1), which applies to glass reinforced polyester roofing, and Sentence 9.26.17.1.(1), which applies to concrete roof tiles.
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Intent	Intent 1: To limit the probability that roof sheathing will not be installed or that inappropriate roof sheathing will be installed, which could lead to: the structure being unable to distribute the roof loads, which could lead to an inability to resist expected gravity and lateral loads, which could lead to the excessive deflection or failure of the structural system, or insufficient support of the roofing material, which could lead to the excessive deflection or failure of the roofing material. This is to limit the probability of: the displacement or failure of required environmental separation elements, or precipitation or meltwater ingress. This is to limit the probability of: condensation, water ingress, pollutant ingress, or compromised thermal performance of components intended to resist heat transfer. This is to limit the probability of: an inadequate control of temperatures of interior spaces, relative humidity or drafts, the generation of pollutants from biological growth or from materials that become unstable on wetting, deterioration, which could lead to further compromised integrity of environmental separators, or water accumulation in interior spaces. This is to limit the probability of: negative effects on the air quality of indoor spaces, the inadequate thermal comfort of persons, and contact with moisture. This is to limit the probability of harm to persons.
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