When installing our ply floor or carpeting in your vehicle/campervan we always add a layer of high quality insulation. This is an important part of the process and will increase the life span of your floor or carpet protecting it from the elements. This will also help to maintain heat within the vehicle and will reduce noise in your camper/ campervan. We use a 5mm thick thermo foam covered with a high quality and effective insulation foil. A 50mm Decron insulation is used for the walls and 40mm Decron for headlining to ensure your van is properly insulated.