Solar window film is also an incredibly cost-effective and scientfically proven way to reduce your interior heating and cooling needs.  By professionally applying a layer of solar window film to your windows you can reduce your carbon fotprint and energy cost.  Working with SunGlo Window Films, Sustainable Improvements first determines if the window film would lower your energy cost and improve the comfort of your home.  If so, Sustainable Improvements overseas the improvements to your home. 
The key benefits of window film are:
    1.    Rejection of 99.9% of incoming UV rays.
    2.    Rejection of "excess" solar energy - up to 55%.
By limiting the amount of heat that enters your through the windows,  you improve the comfort and also lower the amount of electricity needed to cool the house during the summer.  Conversely, by limiting the amount of heat that leaves the house during the winter, you save money as well!