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Roof sheathing exposure.
In order to prevent damage cut the steel bands on the bundles.
If exposure 1 rated panels and sheathing do get wet edge swelling may be experienced.
The everyday sheathing used on the body of a roof is not rated for weather exposure so when exposed eaves and or rakes occur at the perimeter a different more expensive weather rated grade of plywood or osb must be used.
Wood structural panels when designed to be permanently exposed in outdoor applications shall be of an exterior exposure durability.