Intent 1:
To limit the probability of:
- an inadequate flow of drainage, which could lead to
water ponding under footings or floors-on-ground, or
- an inadequate disposal of drain water.
This is to limit the probability of
excessive moisture loading on foundation walls and basement floors,
which could lead to:
- 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 ingress and 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 elements protected by the environmental separators.
This is to limit the probability of negative effects on
the air quality of indoor spaces, which could lead to harm to persons.