9.25.2.3.(1)ATTRIBUTION:
Functional Statement:
F51
To maintain appropriate air and surface temperatures.
F63
To limit moisture condensation.
Objective:
OH1.1, OH1.2
APPLICATION:
Coverage of thermal insulation in walls, ceilings,
roofs and floors separating heated space from unheated 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 of a significant variance in the
insulating value, 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.
Objective:
OS2.3
APPLICATION:
Coverage of thermal insulation in walls, ceilings,
roofs and floors separating heated space from unheated 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 of a significant variance in the
insulating value, 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.