Sentence 9.32.3.10.(1)

  1. OH1
  2. OS2

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability of excessive or insufficient airflow.

This is to limit the probability of:

  • the inadequate control of airborne pollutants or oxygen and other components necessary for breathable air,
  • the inadequate control of relative humidity,
  • excessive negative pressure, or
  • excessive positive pressure.

This is to limit the probability of:

  • condensation within assemblies, which could lead to the generation of pollutants from biological growth or from materials that become unstable on wetting,
  • moisture ingress from the ground,
  • the ingress of soil gases (such as methane and radon),
  • the spillage of combustion products from fuel-burning appliances that are susceptible to spillage, or
  • drafts.

This is to limit the probability of:

  • negative effects on the air quality of indoor spaces, or
  • the inadequate thermal comfort of persons.

This is to limit the probability of harm to persons.

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