9.25.4.2.(2)

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability of excessive water vapour diffusion, where the intended use of the interior space will result in high moisture generation, which could lead to condensation or water accumulation within the assembly.

This is to limit the probability of:

  • compromised thermal performance of components intended to provide resistance to heat transfer, which could lead to an inadequate control of interior temperatures,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • deterioration, which could lead to compromised integrity of assemblies acting as or protected by environmental separators.

This is to limit the probability of:

  • the inadequate thermal comfort of persons,
  • negative effects on the air quality of indoor spaces, and
  • contact with moisture.

This is to limit the probability of harm to persons.

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