My car is stripped right now and I was wondering what a good, inexpensive insulator for under the headliner would be. Someone suggested undercoating and another person suggested spray in bedliner. I want something that won't cost a fortune, will last and will do a decent job. If anyone has pics of the method they used I would really appreciate it. This is not a show car, but I am trying to do the best I can with what I have.
Ms. American has a new Headliner just waiting for installation.
When the old Headliner was removed there was an insulation material that was like "Rockwool" glued to the underside of the roof. It had decayed, and was a MESS to remove.
Not sure that undercoating or bed liner would provide much "insulation".
Have been contemplating the use of "CelloTex", which is a styrofoam that comes in various thicknesses, and has a layer of aluminum foil on each side.
It's light, strong, and could be cut in strips of the right length to be put in cross-wise on the under side of the roof without removing the Headliner Bows. It wouldn't even need to be adhered as if the length were just right, it would fit with a slight bow to it to hold it tight against the underside of the sheet metal. Also, it's not very expensive. a 4'-0" X 8'-0" sheet of the stuff is less than $15.00.
It's easy to work with. Is cut with a utility knife, is clean, impervious to moisture, mold, heat and cold, and is a GREAT insulator, as that's what it's made to do.
Probably isn't proper & correct, but what the heck, no one sees it anyway, and it'd work better than the Rockwool stuff that was originally used because it doesn't decay or turn to dust.