Intent 1:
To limit the probability of studs providing inadequate
support and nailing surfaces for vertical edges of interior finishes,
sheathing or cladding materials, which could lead to inadequate strength
of wood-frame assemblies, which could lead to an inability to resist
expected vertical or lateral loads.
This is to
limit the probability of:
- detachment or separation of interior finishes, sheathing
or cladding from supporting members,
- displacement of sheathing or cladding, or
- inadequate racking resistance for exterior walls and
lateral support of walls, where finishes, sheathing or cladding provide
required racking or buckling resistance.
Where wood-frame construction supports or is part of an
environmental separator, this is to limit the probability of the displacement
or failure of required environmental separation elements, which could
lead to:
- condensation,
- precipitation ingress,
- excessive heat transfer,
- pollutant ingress, or
- compromised thermal performance of components intended
to resist heat transfer.
This is to limit the probability of:
- inadequate control of temperatures of interior spaces,
drafts, relative humidity or water accumulation,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting, or
- deterioration, which could lead to further compromised
integrity of 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.