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9.29.10.3.(1)
OH1OS2OS1OP2
ObjectiveOS1 Fire Safety
Attribution
[F20-OS1.2] Applies where the substrate is required to act as fire protection for foamed plastics or to contribute to the required fire resistance of assemblies.
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:
  • where the substrate is required to protect foamed plastics, a loss of fire protection, or
  • where the substrate is required to contribute to the required fire resistance of assemblies, a loss of fire resistance.
This is to limit the probability of the growth and spread of fire, which could lead to harm to persons.
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