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If we’re installing Dens Glass Gold exterior sheathing, why do we need a separate moisture barrier?

April 26, 2017barrier dens exterior glass gold moisture separate sheathing we’re

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If we’re installing Dens Glass Gold exterior sheathing, why do we need a separate moisture barrier?

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A. A moisture barrier, such as 15# felt, has been required since International Building Code 2000 to create a drainage plane directing water out of the wall cavity. With the proper moisture barrier installation, water entry into the interior is minimized and problems with missing disbonded tape on sheathing joints are avoided.