1. OH1
  2. OS2
  3. OP2
  4. OS3


OH1 Indoor Conditions


(a),(b) [F60,F61-OH1.1,OH1.3]


Intent 1:

To limit the probability of:

  • silting-up of the sump pit,
  • excessive moisture transfer from the sump pit into interior spaces, or
  • the ingress of soil gases.

This is to limit the probability of:

  • an inadequate control of the temperature of interior spaces, relative humidity, or water accumulation,
  • compromised thermal performance of components intended to provide resistance to heat transfer,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • deterioration, which could lead to compromised integrity of elements protected by the 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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