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9.4.4.5.(1)
ApplicationIntent
OS2OP2OH1OH4OS3
ObjectiveOH1 Indoor Conditions
Attribution
[F20-OH1.1,OH1.2,OH1.3]
Application
Application 1: 
Design of walls, including foundation walls and the walls associated with exterior below-grade entrances, that are subject to lateral loads from retained soil or from other material that exerts lateral pressure, 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 cracking of foundations or building superstructures.
This is to limit the probability of:
  • pollutant ingress (from the exterior or from adjacent interior space, including soil gas, combustion products from parking garages, and particulates),
  • precipitation ingress,
  • condensation, or
  • moisture ingress from the ground.
This is to limit the probability of:
  • an inadequate control of relative humidity or water accumulation,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • deterioration, which could lead to compromised integrity of environmental separators.
This is to limit the probability of:
  • negative effects on the air quality of indoor spaces,
  • the inadequate thermal comfort of persons, and
  • contact with moisture.
This is to limit the probability of harm to persons.
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