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9.28.6.3.(2)
OH1OS2OS1OS3OP1
ObjectiveOP1 Fire Protection of the Building
Attribution
[F20-OP1.1] Applies where stucco is applied to masonry chimneys.
Application
Application 1: 
Scoring of the first coat of stucco, on buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability of an inadequate physical bond between the first and second coats of stucco, which could lead to stucco being of inadequate strength to resist gravity, lateral or impact loads, which could lead to delamination.
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).]
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