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9.7.4.1.(1)
OH1OS2
ObjectiveOH1 Indoor Conditions
Attribution
Application
Application 1: 
Sealing compound used to seal glass components of factory-sealed double-glazed units to sash components of windows, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability of premature failure of the glass-to-sash seal or of the edge seal of the glass component, which could lead to:
  • condensation,
  • precipitation ingress,
  • inadequate control of temperatures in interior spaces,
  • drafts, or
  • water accumulation.
This is to limit the probability of:
  • the generation of pollutants from biological growth or from materials that become unstable on wetting,
  • deterioration, which could lead to compromised integrity of windows or adjacent exterior wall assemblies, or
  • the generation of pollutants from the chemical reaction of incompatible sealants.
This is to limit the probability of:
  • negative effects on the air quality of indoor spaces,
  • the inadequate thermal comfort of persons, and
  • contact with moisture.
This is to limit the probability of harm to persons.
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