This kind of roof insulation is advised for homes that often experience warm climates. It deflects the radiant heat flow and stops it from inflowing your home. With this kind of insulation, your home will keep its cooler temperature during summer.
The various materials used in reflective insulation are foil sheets that are plastic-coated onto the paper-based material and concertina-style foil. It is essential to have an air space of at least 25mm to reflect the heat from the foil lining