Sentence 5.9.2.2.(1)

  1. OH1
  2. OS2
  3. OP2

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability that the performance of windows, doors and skylights will fall significantly below expectations with respect to:

  • resistance to wind and snow loads,
  • control of air leakage,
  • protection against precipitation ingress,
  • resistance to the ingress of insects and vermin, and
  • ease of operation.

This is to limit the probability of:

  • structural insufficiency of windows, doors and skylights,
  • excessive air leakage, which could lead to excessive heat transfer or condensation,
  • the ingress of water,
  • the ingress of insects and vermin, or
  • inoperability or excessive difficulty in operating openable windows, doors and skylights.

This is to limit the probability of:

  • the inadequate control of temperatures of interior spaces, relative humidity, drafts, or water accumulation,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • deterioration, which could lead to compromised integrity of exterior wall assemblies.

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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