Intent 1:
To limit the probability of discontinuity in mortar
joints at either interior or exterior faces of hollow masonry units,
which could lead to inadequate tensile and compressive strength of
mortar joints.
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.