Back9.25.2.4.(6)

ATTRIBUTION:

Functional Statement:

F51

To maintain appropriate air and surface temperatures.

F62

To facilitate the dissipation of water and moisture from the building.

F51

To maintain appropriate air and surface temperatures.

F63

To limit moisture condensation.

Objective:

OH1.1, OH1.2, OH1.3, OH1.1, OH1.2

 

APPLICATION:

Installation of soffit venting for roof spaces insulated with loose-fill insulation, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].

INTENT:

To limit the probability of:
  • [Clause (a)] inadequate attic or roof space ventilation, and
  • [Clause (b)] inadequate thermal resistance.
This is to limit the probability of:
  • condensation, which could lead to the accumulation of moisture,
  • the formation of ice dams, which could lead to the ingress of melted water,
  • compromised thermal performance of components intended to provide resistance to heat transfer, or
  • excessively low temperatures of interior surfaces or within assemblies.
This is to limit the probability of:
  • an inadequate control of the temperature of interior spaces or relative humidity,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • deterioration, which could lead to compromised integrity of assemblies acting as 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:

F62

To facilitate the dissipation of water and moisture from the building.

F51

To maintain appropriate air and surface temperatures.

F51

To maintain appropriate air and surface temperatures.

F63

To limit moisture condensation.

Objective:

OS2.3, OS2.3

 

APPLICATION:

Installation of soffit venting for roof spaces insulated with loose-fill insulation, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].

INTENT:

To limit the probability of:
  • [Clause (a)] inadequate attic or roof space ventilation, and
  • [Clause (b)] inadequate thermal resistance.
This is to limit the probability of:
  • condensation, which could lead to the accumulation of moisture,
  • the formation of ice dams, which could lead to the ingress of melted water,
  • compromised thermal performance of components intended to provide resistance to heat transfer, or
  • excessively low temperatures of interior surfaces or within assemblies.
This is to limit the probability of deterioration, which could lead to compromised structural integrity of assemblies acting as environmental separators, which could lead to harm to persons.