Kolpin Outdoors Universal Roof Foam Liner The Kolpin Outdoors Universal Roof Foam Liner is easy to install, thanks to its foam roll and adhesive backing, and it's designed to fit perfectly on the underside of your roof. It's a great way to get rid of annoying squeaks and noises in your vehicle. Features: 5MM adhesive backed foam pad to stick to underside of metal roofs Reduces noise, squeaks, pads roof against frame Looks more premium, provides soft-touch surfaces and is washable Note: Item must be trimmed/cut to fit application