Intent 1:
To limit the probability of:
- inadequate thermal resistance, which could lead to excessively
low temperatures of interior surfaces or within assemblies, which
could lead to condensation, or
- the transfer of absorbed moisture into the masonry,
which could lead to deterioration due to freeze-thaw stresses.
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
- compromised integrity of assemblies acting as environmental
separators.
This is to limit the probability of:
- negative effects on the air quality of indoor spaces,
and
- the inadequate thermal comfort of persons.
This is to limit the probability of harm to persons.
Intent 2:
To modify the application of Sentence (1) to include masonry cavity walls.