Vapor barrier

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Posted by: from Regina
6/3/2016 at 9:13:27 PM

Due to water damage in basement, the drywall, vapor barrier and insulation was removed 3 feet up from carpet. During re-build we need to attach new plastic vapor barrier to existing plastic which is still under existing drywall.

Question: To attach new vapor barrier, should the old barrier have been left hanging below drywall to tape to the new plastic? Or is it better to cut both drywall and plastic barrier flush with each other, then slide new plastic under drywall to tape together?

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Enrique from EZ Home Improvement in Edmonton
Date/Time6/3/2016 at 10:09:48 PM

Old vapor barrier and new must be overlap red tape glue worn off with time your real seal is drywall pressing against new blocking installed along overlap line that's the pro way.

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