Intent 1:
To limit the probability that duct lining will interfere
with the opening or closing of dampers, which could lead to an inability
to balance the flow of intake and exhaust air, which could lead to:
- an inadequate delivery of warm air or return of cold
air, or
- inadequate ventilation.
This is to limit the probability of:
- the inadequate control of airborne pollutants or relative
humidity,
- an inability to maintain the minimum indoor air temperatures
[see Sentence 9.33.3.1.(1)], which could lead to condensation,
or
- inadequate combustion air for fuel-burning appliances.
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
- incomplete combustion.
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.