Back9.25.2.3.(4)

ATTRIBUTION:

Functional Statement:

F51

To maintain appropriate air and surface temperatures.

F63

To limit moisture condensation.

F80

To resist deterioration resulting from expected service conditions.

Objective:

OH1.1, OH1.2

 

APPLICATION:

Ground clearance for insulation, of a type that may be damaged by water, installed on the interior of foundation walls enclosing a crawl space, 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 that thermal insulation will be damaged by water, which could lead to a reduced thermal resistance, which could lead to excessive heat loss through portions of the building envelope, which could lead to excessively low temperatures of interior surfaces or within assemblies.
This is to limit the probability of condensation, which could lead to:
  • 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, 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.

F80

To resist deterioration resulting from expected service conditions.

Objective:

OS2.3

 

APPLICATION:

Ground clearance for insulation, of a type that may be damaged by water, installed on the interior of foundation walls enclosing a crawl space, 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 that thermal insulation will be damaged by water, which could lead to a reduced thermal resistance, which could lead to excessive heat loss through portions of the building envelope, which could lead to excessively low temperatures of interior surfaces or within assemblies.
This is to limit the probability of condensation, which could lead to deterioration, which could lead to compromised structural integrity of assemblies acting as environmental separators, which could lead to harm to persons.