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9.28.6.4.(2) | Application | Intent |
OH1 | OS2 | OS1 | OS3 | OP1 |
Objective | OP1 Fire Protection of the Building |
Attribution | |
Application | Application 1: Roughening of the second 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].
Exceptions:
except for stone-dash finish coats.
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Intent | Intent 1: To limit the probability of an inadequate physical bond
between the finish coat of stucco and its substrate, which could lead to an
inadequate resistance to freeze-thaw stresses, 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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