Since i live in Canada and it gets damn cold here, im putting together a plan to add some much needed insulation to my rig. Im planning on using styrofoam R-6 rigid foam boards of 1 1/2 inch thicknesss that will be glued right to the existing panels on the inside of the rig using appropriate construction adhesive. Inside the cuboards, on the side walls, ceiling (2'') and anywhere else im loosing heat. As the panels are generally unatractive anyway, i plan to cover the foam in the spring with something that looks better. Also on the underside of the rig i will use expanding foam to get some added holes/areas covered. My floor area is 160 square feet, so with the rigs furnace and my Mr buddy i think will be adequate for heating. Please chime in anyone who has some knowledge in this area as im always open to new ideas and ways of doing things.