Intent 1:
To limit the probability of discontinuous thermal
resistance, which could lead to excessive heat loss through portions
of the building envelope, which could lead to excessively low temperatures
of interior surfaces or within assemblies.
This
is to limit the probability of condensation, which could lead to:
- 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,
and
- the inadequate thermal comfort of persons.
This is to limit the probability of harm to persons.