9.28.6.5.(2)

Intent 1:

To limit the probability of:

• drying before hydration is complete (or inadequate curing), or
• the extensive cracking of stucco due to excessive shrinkage.

This is to limit the probability of:

• excessive moisture transfer by capillary action, or
• inadequate strength to resist gravity, lateral, impact or abrasion loads, or freeze-thaw stresses.

Where stucco is applied to masonry chimneys, this is to limit the probability of precipitation or meltwater ingress, which could lead to the premature failure of chimney liners, which could lead to the escape of heat or flames, which could lead to the ignition of combustible building components, which could lead to harm to persons.