9.17.5.1.(1)

Intent 1:

To limit the probability that the performance of the masonry units used, with respect to their properties and compressive strength, will fall significantly below expectations.

This is to limit the probability of:

• compromised structural integrity, or
• for environmental separators or elements supporting 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 to limit the probability of excessive deflection or vibration of floors, which could lead to a loss of balance, tripping or falling, which could lead to harm to persons.