I will glue it sparingly to the wall foil side to the wall. Going to glue wallpaper to the inside part. I do keep the moisture removers in the rv and they have to be replaced every 2 to 3 months.
What about stuffing insulation around the hot water heater? I'm going to put Styrofoam along bottom wall under bench by water heater as well, to keep out as much heat as possible. Already lined the closet, cabinets and medicine cabinet. You can tell a difference.
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