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6.2.3.8.(3)
OH1OH1
ObjectiveOH1 Indoor Conditions
Attribution
Application
Application 1: 
Provision for the removal of condensation, where it might be a problem, in the exhaust ducts of ventilating systems, in buildings described in Sentence 1.3.3.2.(1) of Division A.
Application 2: 
This also applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], with respect to:
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Intent
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.
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