ARCHIVED - 9.26.7.5.(1)

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9.26.7.5.(1)


Objective	OH1 Indoor Conditions
Attribution	[F20,F61-OH1.1,OH1.2,OH1.3]
Application	Application 1: Securing the tabs of asphalt shingles on roofs having a slope of 1 in 3 or greater, on 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 asphalt shingles installed as cladding, as stated in Sentence 9.27.1.1.(4).
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Intent	Intent 1: To limit the probability of: an inadequate resistance to wind-uplift loads, which could lead to lifting and breakage of shingle tabs, or excessively large spots of cement, which could lead to blistering of shingles due to a reaction with solvents, which could lead to compromised water resistance. This is to limit the probability of: water penetrating directly to roof decking or sheathing, or compromised thermal performance of components intended to provide resistance to heat transfer. This is to limit the probability of: an inadequate control of relative humidity, temperatures of interior spaces or water accumulation, the generation of pollutants from biological growth or from materials that become unstable on wetting, or deterioration, which could lead to compromised integrity of roofs or walls or of assemblies protected by roofs or walls. 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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