Intent 1:
To limit the probability of:
- the entry of groundwater into ducts, or
- accelerated deterioration, which could lead to air leakage
from ducts or the collapse of ducts.
This is to limit the probability of:
- an inability to maintain the minimum indoor air temperatures
[see Sentence 9.33.3.1.(1)], or
- inadequate ventilation.
This is to limit the probability of:
- the inadequate control of airborne pollutants or relative
humidity, or
- inadequate combustion air for fuel-burning appliances,
which could lead to incomplete combustion.
This is to limit the probability of:
- the generation of pollutants from biological growth
or from materials that become unstable on wetting,
- the deterioration of building elements, or
- the entry of combustion products into living space.
This is to limit the probability of:
- negative effects on the air quality of indoor spaces,
or
- the inadequate thermal comfort of persons.
This is to limit the probability of harm to persons.