Intent 1:
To limit the probability of saturation of the soil
beneath foundations, which could lead to the soil being unable to
resist foundation loads, which could lead to excessive settlement,
which could lead to structural damage to foundations and superstructures.
For elements supporting environmental separators, this is
to limit the probability of:
- condensation,
- precipitation 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 the temperature 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
- further compromised integrity of foundation walls that
act as environmental separators or of elements supported by such walls,
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.