Intent 1:
To limit the probability of piers with an excessive
height-to-width ratio, which could lead to piers tilting or toppling
under expected wind or seismic loads.
Where elements
support or are part of an environmental separator, this is to limit
the probability of compromised integrity of the superstructure, which
could lead to:
- condensation,
- rainwater 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 of interior spaces,
relative humidity, or water ingress and accumulation,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting, or
- compromised integrity of elements supported by piers,
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.