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9.21.3.9.(1) | Application | Intent |
OS2 | OP1 | OH1 | OS3 | OS1 |
Objective | OS2 Structural Safety |
Attribution | |
Application | Application 1: Mortar bed for chimney liners for
rectangular masonry or concrete chimneys that
are not more than 12 m in height, for solid-fuel-burning appliances having a combined total rated heat output
of 120 kW or less, in buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9]. Application 2: This also applies to rectangular masonry
or concrete chimneys, in buildings to which
Part 6 applies [see Sentence 1.3.3.2.(1) of Division A for application
of Part 6], as stated in Sentence 6.3.1.2.(1). |
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Intent | Intent 1: To limit the probability that flue gas condensate will leak
from joints in chimney liners, which could lead to corrosion or freeze-thaw
damage to surrounding masonry, which could lead to the structural failure
of the chimney, which could lead to harm to persons. |
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