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9.26.15.1.(1)
ApplicationIntent
OH1OS2
ObjectiveOH1 Indoor Conditions
Attribution
[F61,F80-OH1.1,OH1.2,OH1.3]
Application
Application 1: 
Hot-applied rubberized asphalt roofing, on 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 that performance will fall significantly below expectations with respect to substrate preparation, application of surface primer, preparation and application of rubberized asphalt, including the treatment of cracks and joints, and membrane flashing.
This is to limit the probability of the premature failure of roofing, which could lead to:
  • water penetrating directly to roof decking or sheathing, or
  • compromised thermal performance of components intended to provide resistance to heat transfer.
This is to limit the probability of:
  • an inadequate control of relative humidity, temperatures of interior spaces or water accumulation,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • deterioration, which could lead to compromised integrity of roofs or assemblies protected by roofs.
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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