Intent 1:
To limit the probability that the performance of
wood-frame foundations will fall significantly below expectations,
which could lead to an inability to support vertical building loads
or lateral earth loads, which could lead to damage to the foundation
and the superstructure.
Where elements support
or are part of an environmental separator, this is to limit the probability
of:
- condensation,
- rainwater 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 temperatures 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
- compromised integrity of the environmental separator,
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.