Intent 1:
To limit the probability that improperly placed
backfill will lead to:
- damage to the foundation's moisture-control elements,
- the cracking of foundation walls, or
- damage to externally-applied thermal insulation.
For environmental separators or elements supporting an environmental
separator, this is to limit the probability of:
- pollutant ingress from the exterior or from adjacent
interior spaces, including soil gas, combustion products from parking
garages, or particulates,
- 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, relative humidity, or water accumulation,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting, or
- compromised integrity of the foundation or of elements
supported or protected by the foundation, 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.