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9.16.4.1.(1)
ApplicationIntent
OH2OS3OH1
ObjectiveOH1 Indoor Conditions
Attribution
[F62-OH1.1,OH1.2,OH1.3]
Application
Application 1: 
Surface finish for cast-in-place concrete floor slabs that are sloped to drains, that are supported on ground or on granular fill and that do not provide structural support for the superstructure, 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 irregular surfaces, which could slow down or prevent drainage, which could lead to the accumulation of water on the surface.
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 elements protected by floors-on-ground.
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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