Sentence 9.15.2.2.(3)

Intent 1:

To limit the probability that the use of inappropriate or substandard mortar will lead to cracking at mortar joints and inadequate bonding to masonry units, which could lead to the inadequate performance or premature failure of concrete block foundation walls under expected environmental or structural loads.

This is to limit the probability of:

• compromised structural integrity, or
• where elements support or are part of an environmental separator, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements.

For floors and elements supporting floors, this is to limit the probability of excessive deflection, which could lead to rough or uneven walking surfaces, which could lead to persons tripping or falling, which could lead to harm to persons.