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9.32.2.2.(4)
OH2OH1
ObjectiveOH1 Indoor Conditions
Attribution
Application
Application 1: 
Material for screening installed in natural ventilation openings in dwelling units, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions: 
except for windows.
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Intent
Intent 1: 
To limit the probability of the premature failure of screening, which could lead to the blockage of natural ventilation openings, which could lead to inadequate ventilation.
This is to limit the probability of the inadequate control of:
  • airborne pollutants, or
  • relative humidity, which could lead to condensation, which could lead to the generation of pollutants from biological growth or from materials that become unstable on wetting.
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.
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