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Want to insulate this wall with a cold air return
I was hoping to insulate most of this wall, but I have a cold air return in it. Could I flip the shroud and put it up top, then insulate under it to the floor, would get me 90% of the wall done then, I'd vapor barrier the insulation from the cold air return. Or is it going to be useless at the top vs the bottom? Wouldn't be cold at that point eh? This is in the basement. Kind of wanted noise reduction and leaving those 2 studs open might make it loud still.
Attachment 87516