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9.27.7.4.(2) | Application | Intent |
OH1 | OS2 |
Objective | OS2 Structural Safety |
Attribution | |
Application | Application 1: Minimum joint offset for shingles and shakes in a
double-course configuration, 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 water, from rain or melted snow,
running down the face of cladding, entering joints between shingles or shakes,
and penetrating the cladding assembly through joints in underlying courses
or through corresponding joints between shingles or shakes in lower courses,
which could lead to precipitation or meltwater ingress, which could lead to
deterioration, which could lead to the structural failure of exterior walls
or elements protected by exterior walls, which could lead to harm to persons.
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