Intent 1:
To limit the probability of an inadequate drip edge
or return up walls, which could lead to precipitation or meltwater
ingress.
This is to limit the probability of
compromised thermal performance of components intended to resist heat
transfer, which could lead to:
- an inadequate control of temperatures in interior spaces,
relative humidity or water accumulation,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting, or
- deterioration, which could lead to further compromised
integrity of 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.