Intent 1:
To limit the probability of:
- warping or buckling on exposure to water, which could
lead to:
- edge joints becoming misaligned or pulling away from
trim and flashing, 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), edge joints
becoming misaligned, which could lead to an inability to resist lateral
loads, which could lead to racking of exterior walls, or
- panel edges jamming upon linear expansion due to an
increase in moisture content from exposure to precipitation, which
could lead to buckling.
This is to limit the probability of:
- the deformation of the building, or
- 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 compromised structural integrity
of exterior walls or elements protected by exterior walls, or
- falling cladding components.
This is to limit the probability of:
- the space being unsuitable for its intended use,
- compromised operation of windows and doors, or
- damage to the building.