9.33.6.7.(2)

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability of sheet metal failure at nail heads, which could lead to the collapse or opening of joints and air leakage at duct connections, which could lead to:

  • an inability to maintain the minimum indoor air temperatures [see Sentence 9.33.3.1.(1)], which could lead to condensation, or
  • inadequate ventilation.

This is to limit the probability of:

  • the inadequate control of airborne pollutants or relative humidity, or
  • inadequate combustion air for fuel-burning appliances, which could lead to incomplete combustion.

This is to limit the probability of:

  • the generation of pollutants from biological growth or from materials that become unstable on wetting,
  • the deterioration of building elements, or
  • the entry of combustion products into living space.

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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