Intent 1:
To limit the probability of:
- inadequate bearing support across all laminates, which
could lead to shear failure at the interface of laminates in built-up
wood beams, which could lead to structural failure of beams, or
- insufficient contact area between the top of the columns
and the beams they support, which could lead to crushing of wood fibres
in beams.
For columns that support exterior
walls or roofs, this is to limit the probability of excessive deformation
or deflection, or compromised air barrier systems, which could lead
to:
- condensation,
- precipitation ingress, or
- compromised thermal performance of components intended
to provide resistance to heat transfer.
This is to limit the probability of:
- an inadequate control of temperatures in interior spaces,
relative humidity, or water accumulation,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting, or
- further compromised integrity of environmental separators,
which could lead to the deterioration of building elements.
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.