A warmer roof While you can buy the aftermarket headliner insulation kits, the better way to go is to make your own and save some cash. You can install foam board, a blanket with a pattern you like, or whatever else you think will provide excellent insulation. Attach the material to the headliner using 3M Heavy Duty Double-Sided Tape or a spray-on adhesive. This will also help reduce road noise.
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