Sentence 6.3.2.10.(13)

Intent 1:

To limit the probability that exhaust ducts will have inadequate thermal resistance, which could lead to the excessive cooling of exhaust ducts, which could lead to:

• the accumulation of condensation in exhaust ducts when temperatures are above the freezing point, or
• the freezing of accumulated condensation in exhaust ducts when temperatures are below the freezing point, which could lead to the buildup of ice in the ducts, which could lead to ducts being blocked, which could lead to inadequate ventilation.

This is to limit the probability of the inadequate control of relative humidity or indoor air temperatures, which could lead to the inadequate thermal comfort of persons, which could lead to harm to persons.