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9.14.5.2.(1)
ApplicationIntent
OH1OS2OP2OS3
ObjectiveOP2 Structural Sufficiency of the Building
Attribution
(a),(b) [F60,F61-OP2.3,OP2.4]
(c) [F52-OP2.3]
Application
Application 1: 
Sump pits without pumps, for foundation drains for 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:
  • [Clauses (a) and (b)] silting-up of the sump pit, which could lead to the ingress of moisture from the ground, or
  • [Clause (c)] excessive moisture transfer from the sump pit into interior spaces, which could lead to high relative humidity.
This is to limit the probability of:
  • compromised structural integrity of foundation walls and basement floors, or of elements supported by the walls or floors, or
  • deterioration, which could lead to compromised integrity of elements supported or protected by exterior foundation walls.
This is to limit the probability of:
  • the space being unsuitable for its intended use, or
  • damage to the building.
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