Sentence 9.20.13.9.(2)

  1. OS2
  2. OP2
  3. OH1

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability of inadequate drainage, which could lead to water penetrating the interior surface of solid masonry walls, flowing along the interface of the sheathing membrane material and the interior surface of the masonry, and collecting in the wall.

This is to limit the probability of:

  • precipitation or meltwater ingress, or
  • compromised thermal performance of components intended to resist heat transfer.

This is to limit the probability of:

  • an inadequate control of temperatures in interior spaces, 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 further 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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