Intent 1:
To limit the probability of:
- the veneer being unable to support its own weight or
lateral loads,
- insufficient bonding area between ties and mortar in
loadbearing or non-loadbearing masonry cavity walls, which could lead
to an inability to resist lateral, tensile and compressive loads,
or
- insufficient bond strength between masonry veneer units
in loadbearing or non-loadbearing cavity walls, which could lead to
an inability to resist tensile stresses due to lateral loads.
Where masonry construction is 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.
Intent 2:
To exempt masonry veneer in which the units are
not designed to provide vertical support to each other from the minimum
thickness requirement of this Sentence.