9.28.1.3.(1)

Intent 1:

To limit the probability of:

• stresses on stucco due to shrinkage of the masonry substrate during curing, or
• the inadequate bonding of stucco due to the excessively high moisture content of masonry.

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 damage to the building. [See intent for Sentence 9.21.4.6.(1).]