Sentence 9.23.6.1.(4)

  1. OS2
  2. OP2
  3. OH1
  4. OH4
  5. OS3

Objective

OH1 Indoor Conditions

Attribution

[F20-OH1.1,OH1.2,OH1.3]Applies to elements that support or are part of an environmental separator.

Intent

Intent 1:

To limit the probability that the building frame will be improperly anchored to the foundation, which could lead to:

  • an inability to resist expected wind and seismic loads, which could lead to overturning, lifting or sliding of the superstructure off the foundation, and
  • where the superstructure is required to provide lateral support for the foundation, an inability to resist expected lateral earth pressure loads, which could lead to:
    • cracking or differential movement of the foundation, or
    • compromised structural integrity of the foundation, which could lead to deflection or deformation of the superstructure.

Where wood-frame construction supports or is part of an environmental separator, this is to limit the probability of the displacement or failure of required environmental separation elements, which could lead to:

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

This is to limit the probability of:

  • 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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