Intent 1:
To limit the probability of fastening cladding to
an inappropriate substrate.
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), this is to limit the probability of an inadequate
resistance to 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 deterioration,
which could lead to the structural failure of exterior walls or elements
protected by exterior walls.
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.