Intent 1:
To limit the probability that the performance of
plywood will fall significantly below expectations, which could lead
to:
- premature failure of plywood cladding, 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
to resist lateral loads, which could lead to racking of exterior walls.
This is to limit the probability of the displacement of
cladding, trim and flashing, opening of joints or failure of caulking,
which could lead to:
- precipitation or meltwater ingress, which could lead
to deterioration, which could lead to the structural failure of exterior
walls or elements protected by exterior walls, or
- falling cladding components.
This is to limit the probability of harm to persons.