ARCHIVED - 9.12.3.3.(2)

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9.12.3.3.(2)


Objective	OH1 Indoor Conditions
Attribution	[F20-OH1.1,OH1.2,OH1.3]
Application	Application 1: Backfill for foundations of buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9]. Exceptions: except as stated in Sentence 9.12.3.3.(3), which applies to foundation constructions that are not susceptible to damage from ice lensing.
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Intent	Intent 1: To limit the probability of excessive lateral loading on foundation walls or jacking pressures from adfreezing to foundation walls, which could lead to: movement or cracking of foundation walls, or damage to a foundation's moisture-control elements. Where foundations act as environmental separators, this is to limit the probability of: condensation, precipitation ingress, the ingress of moisture from the ground, or compromised thermal performance of components intended to provide resistance to heat transfer. This is to limit the probability of: an inadequate control of the temperature of interior spaces, drafts, relative humidity, 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 environmental separators. 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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