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9.27.2.2.(6)
ApplicationIntent
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Application
Application 1: 
Omission of capillary breaks in cladding assemblies to which Sentence 9.27.2.2.(5) applies [see Article 9.27.1.1. for application of Subsection 9.27.2.], where:
  • it can be shown that the omission of a capillary break will not adversely affect the performance of building assemblies,
  • the building is an accessory building,
  • the exterior walls as well as intersecting or supported floors are constructed with non-moisture-susceptible materials, or
  • the exterior walls are constructed as mass walls with sufficient thickness to minimize the transfer of moisture to interior spaces.
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Intent
Intent 1: 
To exempt exterior walls from the requirement to install a capillary break, where:
  • lesser protection will not adversely affect the performance of building assemblies,
  • damage to the building will have limited adverse consequences,
  • the walls, and intersecting or supported floors, are not susceptible to moisture damage, or
  • other methods are used to minimize moisture ingress.
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