Insulated Ceiling Liner cools down the interior cargo space by creating a thermal barrier and fending off the hot sun, especially in extremely hot weather climates. Underrated, often-forgotten, yet easily the most effective product in cooling down the cargo space for operators in the back of the vehicle a lot. Aluminium Top Sills sold seperately, which bridge the gap between Wall Liners and the Ceiling to complete the look and hide wires and van cavity of your Ford Transit 148".