Back5.8.2.2.(4)

ATTRIBUTION:

Functional Statement:

F61

To resist the ingress of precipitation, water or moisture from the exterior or from the ground.

Objective:

OH1.1, OH1.2, OH1.3

 

APPLICATION:

Materials and components installed to provide resistance to moisture transfer from the ground into or through building assemblies, and through interfaces between assemblies, in buildings to which Part 5 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 5].

INTENT:

To limit the probability of an inadequate resistance to moisture transfer in relation to the moisture load, which could lead to moisture ingress from the ground.
This is to limit the probability of:
  • the inadequate control of 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.

ATTRIBUTION:

Functional Statement:

F61

To resist the ingress of precipitation, water or moisture from the exterior or from the ground.

Objective:

OS2.3

 

APPLICATION:

Materials and components installed to provide resistance to moisture transfer from the ground into or through building assemblies, and through interfaces between assemblies, in buildings to which Part 5 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 5].

INTENT:

To limit the probability of an inadequate resistance to moisture transfer in relation to the moisture load, which could lead to moisture ingress from the ground, which could lead to deterioration, which could lead to compromised structural integrity of the separators or of elements supported or protected by the separators, which could lead to structural failure, which could lead to harm to persons.