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Interior Vapor Retarders with ZIP System R-sheathing

This technical tip addresses the code requirements for interior vapor retarders when using ZIP System R-sheathing. For more information, refer to the 2021 International Residential Code or International Building Code.

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ZIP System R-Sheathing Fire Rated Assemblies

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Top of Wall Details with ZIP System Rainscreen and ZIP System R-sheathing

This detail shows HEW's recommendations when addressing the top of the wall when stucco is installed over ZIP System rainscreen and ZIP System R-sheathing.

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Top of Wall Details with ZIP System Rainscreen and ZIP System Sheathing

This detail shows HEW's recommendations when addressing the top of the wall when stucco is installed over ZIP System rainscreen and ZIP System sheathing.