9.24.3.3.(1)

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability of inadequate strength or stiffness, or an insufficient surface for the attachment of cladding, sheathing or interior finish materials, which could lead to an inability to resist expected lateral and gravity loads.

For steel stud walls that support or are part of an environmental separator, this is to limit the probability of the excessive movement or deformation of walls, which could lead to the excessive deformation, displacement or failure of required environmental separation elements, which could lead to:

  • pollutant ingress,
  • condensation, or
  • precipitation ingress.

This is to limit the probability of:

  • an inadequate control of the temperature of interior spaces, drafts or 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 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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