Intent 1:
To limit the probability of the inadequate control
of:
- heat loss or gain due to air mass transfer,
- air infiltration and exfiltration,
- airborne vapour transfer from the interior above ground
and from the exterior below ground,
- precipitation ingress due to air pressure differences,
or
- condensation.
This is to limit the probability of:
- the inadequate control of temperatures of interior spaces,
drafts, relative humidity, or water accumulation,
- pollutant ingress, including soil gas, combustion products
from parking garages, and particulates,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting, or
- deterioration, which could lead to 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.