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5.6.2.2.(4)
OH1OS2
ObjectiveOS2 Structural Safety
Attribution
Application
Application 1: 
Junctions between vertical assemblies, and sloped or horizontal assemblies, that are exposed to precipitation, in buildings to which Part 5 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 5].
Application 2: 
This also applies to cladding assemblies installed on buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] where:
  • the cladding assembly is not addressed in Section 9.27., or
  • the cladding assembly does not comply with the prescriptive requirements of Section 9.27.
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Intent
Intent 1: 
To limit the probability of excessive moisture loading on vertical assemblies, which could lead to precipitation ingress, which could lead to deterioration, which could lead to compromised structural integrity of the separators or of elements supported or protected by the separators, which could lead to structural failure, which could lead to harm to persons.
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