TVM 2222-24-025 Double Bubble Insulation Tab, 25 ft L, 24 in W, 5/16 in Thick

Between-joist reflective insulation consists of a double layer of polyethylene bubbles, sandwiched between two highly reflective aluminum surfaces. This product has been specifically designed for insulating residential wall and ceiling assemblies. Tabbed edges help to ensure the product is installed quickly and correctly, every time.