Intent 1:
To limit the probability that attic or roof spaces
will be inaccessible for periodic inspection or maintenance, which
could lead to:
- deficiencies in building components going undetected,
or
- the need to demolish building components in order to
gain access.
This is to limit the probability of
condensation going undetected or the ingress of water.
This is to limit the probability of:
- compromised thermal performance of components intended
to provide resistance to heat transfer, 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,
- deterioration, which could lead to compromised integrity
of ceilings acting as environmental separators, or
- water accumulation in interior spaces.
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.