Intent 1:
To limit the probability of columns having inadequate
strength, which could lead to an inability to resist expected gravity
or lateral (impact) loads, which could lead to buckling.
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.