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9.13.2.6.(1)
OH1OS2
ObjectiveOS2 Structural Safety
Attribution
Application
Application 1: 
Interior dampproofing for unit masonry or concrete walls that are in contact with the ground, where the ground level outside is higher than the ground level inside and a separate interior finish is applied to the walls, or wood members are placed in contact with the walls for the installation of insulation or an interior finish, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability of the transfer of moisture from the ground through footings or walls, or the transfer of construction moisture from the wall, into interior finishes or wood members, which could lead to deterioration, which could lead to compromised structural integrity of interior finishes or wood members, which could lead to structural failure, which could lead to harm to persons.
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