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9.26.6.2.(1) | Application | Intent |
| OH1 | OS2 |
| Objective | OS2 Structural Safety |
| Attribution | |
| Application | Application 1: Orientation and overlapping of underlay used beneath
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]. |
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| Intent | Intent 1: To limit the probability of the retention of water that
has penetrated roofing or that has condensed on the underside of underlay,
which could lead to long-term wetting of sheathing, which could lead to deterioration,
which could lead to the structural failure of roofs or assemblies protected
by roofs, which could lead to harm to persons. |
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