Sentence 9.15.2.2.(3)

  1. OS2
  2. OP2
  3. OH1
  4. OH4
  5. OS3
  6. OS2
  7. OP2
  8. OH1
  9. OH4
  10. OS3
  11. OS2
  12. OP2
  13. OH1
  14. OH4
  15. OS3

Objective

OH1 Indoor Conditions

Attribution

(a)[F20,F80-OH1.1,OH1.2,OH1.3]Applies to elements that support or are part of an environmental separator.

Intent

Intent 1:

To limit the probability that the use of inappropriate or substandard mortar will lead to cracking at mortar joints and inadequate bonding to masonry units, which could lead to the inadequate performance or premature failure of concrete block foundation walls under expected environmental or structural loads.

Where elements support or are part of an environmental separator, this is to limit the probability of:

  • condensation,
  • rainwater ingress,
  • the ingress of moisture from the ground, or
  • compromised thermal performance of components intended to provide resistance to heat transfer.

This is to limit the probability of:

  • an inadequate control of temperatures of interior spaces, relative humidity, or water ingress and accumulation,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • compromised integrity of the environmental separator, which could lead to the deterioration of building elements.

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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