6.2.3.8.(3)

Intent 1:

To limit the probability that condensation will accumulate in exhaust ducts, which could lead to:

• the blockage of ducts by ice buildup when temperatures are below the freezing point, which could lead to inadequate ventilation, or
• the growth of mould and mildew in ducts.

This is to limit the probability of negative effects on the air quality of indoor spaces, which could lead to harm to persons.