Intent 1:
To limit the probability that the waterproofing
will be discontinuous or of insufficient thickness, which could lead
to:
- the ingress of moisture from the ground, including water
that is under hydrostatic pressure, 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 walls or of elements protected by the walls.
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.
Intent 2:
Where waterproofing materials are installed to control
the infiltration of soil gas, to limit the probability that the waterproofing
will be discontinuous or of insufficient thickness, which could lead
to the infiltration of soil gas, which could lead to negative effects
on the air quality of indoor spaces, which could lead to harm to persons.