Intent 1:
To limit the probability of an inadequate thickness
or inappropriate specifications or rating of wall sheathing, which
could lead to:
- an inadequate fastening base for cladding,
- inadequate support for required cladding and elements
of an environmental separator, or
- an inability to resist expected lateral or gravity loads,
where sheathing provides the required resistance to racking and buckling.
This is to limit the probability of:
- falling cladding,
- the deformation or displacement of cladding, or
- the excessive deflection of the wall.
Where assemblies are required to provide fire resistance,
this is to limit the probability of compromised fire resistance of
the assembly, which could lead to harm to persons.