Intent 1:
To limit the probability of inadequate capacity
to transfer loads from supported floor and roof framing members in
construction where supported loads are transferred directly to the
studs or where the supported load is limited, which could lead to
an inability to resist expected gravity and lateral loads, which could
lead to:
- the inadequate distribution of vertical loads to and
from studs, which could lead to the excessive deflection of wall plates,
or
- inadequate diaphragm action of plates, which could lead
to the excessive deflection of walls.
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.