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9.29.10.3.(1)
ApplicationIntent
OH1OS2OS1OP2
ObjectiveOH1 Indoor Conditions
Attribution
[F20-OH1.1,OH1.2] Applies where the substrate serves as a required environmental separation element.
Application
Application 1: 
Application of adhesive to bases for the installation of ceramic or plastic tile interior wall finishes, 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 the inadequate adhesion of tiles to the substrate, which could lead to an inability to resist expected impact, gravity or lateral loads, which could lead to the dislodgement of tiles, which could lead to compromised protection for moisture-vulnerable substrates.
This is to limit the probability of the deterioration of the substrate, which could lead to:
  • the generation of pollutants, on surfaces or within assemblies, from biological growth or from materials that become unstable on wetting, or
  • where the substrate serves as a required environmental separation element, the failure of such elements, which could lead to:
    • condensation,
    • precipitation ingress,
    • pollutant ingress, or
    • compromised thermal performance of components intended to resist heat transfer.
This is to limit the probability of:
  • an inadequate control of temperatures of interior spaces,
  • the further generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • deterioration, which could lead to further compromised integrity of environmental separators.
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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