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5.6.2.2.(1)
OS3
ObjectiveOS3 Safety in Use
Attribution
Application
Application 1: 
Locations that are:
  • exposed to precipitation, and
  • subject to the accumulation of precipitation.
This applies to building materials, components or assemblies and their interfaces described in Sentence 5.1.2.1.(1) that are installed in buildings to which Part 5 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 5].
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Intent
Intent 1: 
To limit the probability of precipitation accumulating on buildings, which could lead to snow or ice falling from the buildings, which could lead to harm to persons.
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