Intent 1:
To limit the probability that the performance of
drain tiles or drain pipes will fall significantly below expectations,
with respect to:
- strength (e.g. tensile, compressive, impact, hydrostatic,
flexural),
- resistance to deterioration (e.g. due to freeze-thaw
stresses, chemical attack, corrosion),
- the integrity of connections, or
- permeance (of perforated products).
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,
- the inadequate thermal comfort of persons, and
- contact with moisture.
This is to limit the probability of harm to persons.