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9.14.6.4.(1)
ApplicationIntent
OH1OS2OP2OS3
ObjectiveOS2 Structural Safety
Attribution
[F61-OS2.3]
Application
Application 1: 
Catch basins in driveways of 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 inadequate drainage of water from driveways where water can accumulate or enter a garage.
This is to limit the probability of:
  • the exposure of building materials to water, or
  • moisture-related expansion and contraction of the soil, or frost heaving.
This is to limit the probability of:
  • compromised structural integrity of garage foundations and floors, or of elements they support, or
  • deterioration, which could lead to compromised integrity of elements supported or protected by garage foundation or floors.
This is to limit the probability of harm to persons.
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