ARCHIVED - 9.20.13.6.(2)

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9.20.13.6.(2)


Objective	OH1 Indoor Conditions
Attribution	[F61,F62-OH1.1,OH1.2,OH1.3]
Application	Application 1: Extension of flashing beneath weep holes in masonry veneer over wood-frame walls, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9]: where the wall height above the foundation wall does not exceed 11 m, and in which the roof or floor system above the first storey is not of concrete construction Exceptions: except as stated in Sentence 9.20.1.1.(2), which applies to buildings other than described above, or where the masonry is designed for specified loads on the basis of ultimate and serviceability limit states.
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Intent	Intent 1: To limit the probability of an inadequate drip edge or return up walls, which could lead to precipitation or meltwater ingress. This is to limit the probability of compromised thermal performance of components intended to resist heat transfer, which could lead to: an inadequate control of temperatures in interior spaces, relative humidity or water accumulation, the generation of pollutants from biological growth or from materials that become unstable on wetting, or deterioration, which could lead to further compromised integrity of environmental separators. 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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