Back5.3.1.1.(1)

ATTRIBUTION:

Functional Statement:

F63

To limit moisture condensation.

F51

To maintain appropriate air and surface temperatures.

F63

To limit moisture condensation.

Objective:

OH1.1, OH1.2

 

APPLICATION:

Installation of:
  • building materials that resist heat transfer through building components and assemblies, and through interfaces between components and assemblies, or
  • means to dissipate transferred heat from within assemblies to the outside.
This applies to building materials, components, assemblies and their interfaces described in Sentence 5.1.2.1.(1) that are installed 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 the inadequate control of heat transfer through environmental separators under expected environmental loads, which could lead to:
  • excessive heat loss or gain, or
  • the condensation of moisture from interior spaces on warm-side surfaces.
This is to limit the probability of:
  • the inadequate control of temperatures of interior spaces,
  • 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, and
  • the inadequate thermal comfort of persons.
This is to limit the probability of harm to persons.

ATTRIBUTION:

Functional Statement:

F63

To limit moisture condensation.

Objective:

OS2.3

 

APPLICATION:

Installation of:
  • building materials that resist heat transfer through building components and assemblies, and through interfaces between components and assemblies, or
  • means to dissipate transferred heat from within assemblies to the outside.
This applies to building materials, components, assemblies and their interfaces described in Sentence 5.1.2.1.(1) that are installed 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 the inadequate control of heat transfer through environmental separators under expected environmental loads, which could lead to:
  • the condensation of moisture from interior spaces on warm-side surfaces, and
  • the creation of ice dams.
This is to limit the probability of deterioration, which could lead to compromised structural integrity of the separators or of elements supported by the separators, which could lead to structural failure, which could lead to harm to persons.
To limit the probability of the inadequate control of heat transfer through environmental separators under expected environmental loads, which could lead to the freezing of soils on which foundations bear, which could lead to the displacement of structural elements, which could lead to structural failure, which could lead to harm to persons.

ATTRIBUTION:

Functional Statement:

F51

To maintain appropriate air and surface temperatures.

F63

To limit moisture condensation.

Objective:

OS1.4

 

APPLICATION:

Installation of:
  • building materials that resist heat transfer through building components and assemblies, and through interfaces between components and assemblies, or
  • means to dissipate transferred heat from within assemblies to the outside.
This applies to building materials, components, assemblies and their interfaces described in Sentence 5.1.2.1.(1) that are installed 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 the inadequate control of heat transfer through environmental separators under expected environmental loads, which could lead to:
  • excessive heat loss or gain, or
  • condensation.
Where required life safety systems are incorporated in environmental separators, this is to limit the probability that temperature-sensitive or moisture-sensitive life safety systems will freeze, which could lead to compromised operation of such systems, which could lead to harm to persons.