What if I need to have foil or paper backing on my insulation or use a separate type of membrane as a vapor barrier?
If you need to have a vapor barrier, you have several options. First, if you can use insulation blanket with foil or paper backing, place the backing away from the interior of the room (see the FAQ immediately above) for which the Iso-Wall system is being applied. If you must place the backing toward the interior of the room, use wire insulation supports (as suggested in the instructions for wall installation step [1] ) to hold the backing at least 1inch away from the resilient channel. Second, if you need to use a sheet of visquine or other material to cover the entire wall, place it on the opposite side of the frame from the side for which you are applying the Iso-Wall system. If you must place the material on the interior side of the frame, place it separately over each stud cavity, tucking the edges into the interior of the cavity and attaching it to the sides of the studs . This leaves the stud faces exposed for placement of the Iso-Wall system. Be sure to tuck the material far en
