Intent 1:
To limit the probability of inadequate insulation,
moisture protection and vapour diffusion protection of interior spaces,
which could lead to:
- water accumulation,
- condensation,
- compromised thermal performance of components intended
to provide resistance to heat transfer, or
- premature failure of the moisture protection.
This is to limit the probability of:
- an inadequate control of the temperature of interior
spaces or relative humidity,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting, or
- deterioration, which could lead to compromised integrity
of assemblies acting as 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.
Intent 2:
To clarify that insulation fulfilling the functions
of the protection of interior finishes from moisture and that of the
vapour barrier must cover the entire foundation wall.