Intent 1:
To limit the probability that precipitation or meltwater
will splash, soak or pool against the lower portions of cladding,
which could lead to the accelerated deterioration and premature failure
of cladding.
This is to limit the probability
of:
- precipitation or meltwater ingress, which could lead
to deterioration, which could lead to compromised structural integrity
of exterior walls or elements protected by exterior walls, which could
lead to structural failure,
- falling cladding components, or
- where panel-type siding is installed as bracing to satisfy Subclause 9.23.13.1.(2)(a)(i) and Clause 9.23.13.6.(1)(a), an inability
of the cladding to resist lateral loads, which could lead to racking
of exterior walls, which could lead to
- the deformation of the building, or
- the displacement of cladding, trim and flashing, the
opening of joints or the failure of caulking, which could lead to
precipitation or meltwater ingress, which could lead to further deterioration,
which could lead to further compromised structural integrity.
This is to limit the probability of harm to persons.