Intent 1:
To limit the probability that masonry exterior walls
will be unable to resist expected structural loads.
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, 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.