Intent 1:
To limit the probability of:
- inadequate width of masonry units in loadbearing contact
with each other, which could lead to an inability to resist expected
gravity or lateral loads,
- insufficient bond strength to resist tensile stresses
in non-loadbearing masonry cavity walls, or
- inadequate bonding of ties with mortar, which could
lead to inadequate pullout and pushout resistance.
This is to limit the probability of:
- compromised structural integrity of masonry construction,
- where masonry construction is part of an environmental
separator, the displacement or failure of required environmental separation
elements, which could lead to deterioration,
- in assemblies exposed to moisture or the exterior, damage
and deterioration, or
- an inability to resist expected loads, which could lead
to:
- the excessive movement or deformation of walls, or
- the excessive deflection or vibration of floors.
This is to limit the probability of:
- the space being unsuitable for its intended use,
- compromised operation of windows or doors, or
- damage to the building.