Intent 1:
To limit the probability of inappropriate backfill
material, which could lead to point loads being applied to foundation
walls by boulders in the backfill under lateral soil pressure, which
could lead to:
- the cracking of foundation walls, or
- damage to a foundation's moisture-control elements.
Where foundations act as 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
- deterioration, which could lead to compromised integrity
of 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.