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Thrawn89 t1_jacss96 wrote on February 28, 2023 at 2:47 PM

Reply to comment by woodprefect in Add additional insulation to walkout basement wall cavity. Good idea? Bad idea? by hoppyending

You must always follow local code. They require vapor barrier on the interior side of the wall above grade. Also your links just say incorrect use will cause problems, they don't say don't use vapor barriers at all.