They are lightweight, durable and easy to install. Shade screens make it difficult for people standing outside the window to see inside. When you are standing on the inside you can easily see out. Window Films Think about placing window films on windows that receive large amounts of direct or reflected sunlight. These thin sheets of reflective film on the inside surface of window glass greatly reduce heat gain.
Window films reflect much of the sun's heat before it passes through the glass.
But, the glass itself still gets warm. The film also reduces the heat flow from the warm glass to the inside of your home. In winter, the film blocks heat flow from the inside to the outside, making your home more comfortable. Window films are effective and easy to maintain. There are many types of window film's on the market.