For a job like that, your simplest bet is to simply vapour barrier right over the box or boxes, and carefully cut an X in front, folding or cutting away the triangles of plastic. When you put the receptacle back in, use one of those foam rubber cover plate gaskets. it will not be a perfect seal, but is it a perfect basement? it will be good enough, especially if you use Roxul
"The truth is incontrovertible, malice may attack it, ignorance may deride it, but in the end; there it is."
Just a guy who dabbles in lots of stuff learning along the way. I do have opinions, and readily share them!
Just a guy who dabbles in lots of stuff learning along the way. I do have opinions, and readily share them!