Reflective film which adheres to glass and is often seen on commercial buildings can block up to 85 percent of incoming sunlight. In the summer, solar films can reduce heat gain, making homes more comfortable and reducing your cooling bills. In addition, they reduce fading of carpets, furniture and fabrics by the sun’s UV rays. Unlike closed drapes or blinds, reflective films work by stopping the sun’s heat outside the window before it enters the home without compromising your view.