9.33.6.13.(5)

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability of a drop in pressure and a reduction in the flow of return air from rooms, which could lead to:

  • an inability to maintain the minimum indoor air temperatures [see Sentence 9.33.3.1.(1)], or
  • where required ventilation is provided by the forced-air heating system, inadequate ventilation.

This is to limit the probability of:

  • the inadequate control of airborne pollutants or relative humidity, or
  • condensation, which could lead to:
    • the generation of pollutants from biological growth or from materials that become unstable on wetting,
    • the deterioration of building elements, or
    • compromised performance of environmental separators,

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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