Intent 1:
To limit the probability that inappropriate assumptions
will be made with regard to interior environmental load in the design
of environmental separators, which could lead to the inadequate performance
or premature failure of components and assemblies of environmental
separators under expected environmental loads, which could lead to:
- air infiltration and exfiltration,
- condensation,
- precipitation ingress, or
- moisture ingress from the ground.
This is to limit the probability of:
- the inadequate control of temperatures of interior spaces,
drafts, relative humidity or water accumulation,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting,
- deterioration, which could lead to further compromised
integrity of environmental separators, or
- pollutant ingress, including soil gas, combustion products
from parking garages, or particulates.
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 direct Code users to a source of information
commonly used for defining interior environmental loads.