I sheathed mine in Exotherm. A polyisocyanurate foam insulation covered in foil both sides. You have to use tuck tape (the clear red stuff) on the seams. I used a 3/4" which is R5.5, the real benifit comes from sealing the air infiltration and the foil reflecting the heat. It also uncouples an...

I bought a Mobile Home back some years ago, it was used then. When I bought the home, I gutted the inside, and redone the wiring, plumbing and fixtures. Then I dry walled the walls, Put a little more insulation in the walls no much, because of room. When the inside was done I tackled the outside. I ...