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9.13.4.1.(2)
ApplicationIntent
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Application
Application 1: 
Walls, roofs and floors that are in contact with the ground, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], in:
  • garages,
  • unenclosed portions of buildings served by the walls, roofs and floors, and
  • buildings located where soil gas is at a sufficiently low concentration as to not constitute a hazard.
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Intent
Intent 1: 
To exempt certain Part 9 buildings from the application of Sentence (1), where:
  • the potential health hazard caused by the infiltration of soil gas is mitigated by high air exchange rates,
  • occupancy is likely to be infrequent or of short duration, or
  • soil gas is at a sufficiently low concentration as to not constitute a hazard.
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