1. OH1
  2. OS2


OH1 Indoor Conditions



Intent 1:

To limit the probability that dampproofing materials will provide inadequate protection against moisture transfer from the ground, which could lead to the ingress of moisture from the ground, which could lead to:

  • compromised thermal performance of components intended to provide resistance to heat transfer, which could lead to an inadequate control of the temperature of interior spaces,
  • water accumulation or an inadequate control of relative humidity,
  • 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 supported or protected by floors, foundation walls or roofs of underground structures.

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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