Sentence 9.7.6.1.(1)

  1. OH1
  2. OS2
  3. +

Objective

OH1 Indoor Conditions

Attribution

Intent

Intent 1:

To limit the probability that the installation of windows, doors, and skylights will fall significantly below expectations, which could lead to:

  • inadequate fastening of frames to the structure,
  • inadequate mulling of combination units, or
  • inadequate selection of fasteners.

This is to limit the probability of:

  • inadequate control of air leakage,
  • precipitation into interior space,
  • structural damage due to wind loads or snow loads on skylights or where windows have sloped or near-horizontal components, or
  • excessive force required for operation of windows, doors and skylights, which could lead to inadequate ventilation, where windows are required for non-heating season ventilation.

This is to limit the probability of:

  • water accumulation or condensation on the surface of building elements and within assemblies,
  • the 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 compromised integrity of assemblies acting as 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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