Sentence 9.28.1.3.(1)

  1. OH1
  2. OS2
  3. OS1
  4. OS3
  5. OP1

Objective

OS3 Safety in Use

Attribution

[F80-OS3.4]Applies where stucco is applied to masonry chimneys.

Intent

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 leakage of carbon monoxide gas into living space, which could lead to the acute poisoning or asphyxiation of persons.

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