Window films are thin laminate films made of Polyethylene Terephthalate , that are normally installed on glass surfaces of automobile , homes and buildings. Window films are normally categorised based on their intended use, material type, or by their performance. A category of window films known as reflective window films are meant for the protection from sun rays. Such films are designed to cut the sun rays. Such films also have the advantage of a absorbing the solar heat, in contrast to ordinary tinted films which does not possess such property.
Due to its heat and glare controlling properties , reflective films are being used widely in commercial buildings.