9.20.3.2.(2)

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability of inadequate mortar density, which could lead to the excessive shrinkage, cracking and premature failure of mortar joints, which could lead to air or water leakage at mortar joints, which could lead to:

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

This is to limit the probability of:

  • an inadequate control of temperatures of interior spaces, drafts, 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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