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:
- compromised structural integrity, or
- the excessive deformation, displacement or failure of
required environmental separation elements, which could lead to deterioration,
which could lead to further compromised structural integrity.
This is to limit the probability of:
- the excessive deflection or vibration of supported floors,
or
- the excessive movement or deformation of walls.
This is to limit the probability of:
- compromised operation of doors or windows required for
egress in an emergency, and
- persons losing their balance, tripping or falling.
This is to limit the probability of harm to persons.