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9.26.7.4.(5) | Application | Intent |
| OH1 | OS2 |
| Objective | OS2 Structural Safety |
| Attribution | |
| Application | Application 1: Location of nails or staples for 1-m-wide asphalt
shingles, on roofs of 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 asphalt shingles installed as
cladding, as stated in Sentence 9.27.1.1.(4). Application 3: This also applies to the fastening of asphalt shingles
on roofs with slopes of less than 1 in 3, as stated in Sentence 9.26.8.7.(1).
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| Intent | Intent 1: To limit the probability that fasteners will be located
near areas of stress concentration at cutouts, which could lead to shingles
being torn or displaced under wind-uplift loads and loads imposed by the shrinkage
of shingles, which could lead to water penetrating directly to roof decking
or sheathing, which could lead to deterioration, which could lead to the structural
failure of roofs or walls or of assemblies protected by roofs or walls, which
could lead to harm to persons. |
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