Intent 1:
For columns exposed to the weather, to limit the
probability that the columns will rust at an excessive rate, which
could lead to the premature failure of the columns.
This is to limit the probability of compromised structural integrity,
which could lead to:
- structural failure, or
- for environmental separators or elements supporting
an environmental separator, excessive deformation or deflection of
exterior walls or roofs, which could lead to the displacement or failure
of required environmental separation elements, which could lead to
the deterioration of building elements.
This is to limit the probability of harm to persons.