9.15.4.2.(2)

Intent 1:

To limit the probability of insufficiently thick concrete in foundation walls, which could lead to insufficient bearing of supported walls or eccentric loads on the foundation, which could lead to an inability to support gravity loads or lateral earth loads, which could lead to concrete cracking.

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 movement, deflection or vibration, which could lead to negative effects on the psychological well-being of persons.