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9.13.2.1.(1)
OH1OS2
ObjectiveOS2 Structural Safety
Attribution
Application
Application 1: 
Dampproofing of the exterior surfaces of foundation walls that are below ground level, where the finished ground level outside is higher than the ground level inside the foundation walls, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions: 
except as stated in Sentence 9.13.3.1.(1), which applies to foundation walls that are subject to hydrostatic pressure.
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Intent
Intent 1: 
To limit the probability of an inadequate resistance to moisture transfer from the ground, which could lead to the ingress of moisture from the ground, which could lead to deterioration, which could lead to compromised structural integrity of elements supported or protected by foundation walls, which could lead to harm to persons.
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