We love the beauty of natural light streaming through our windows, and want as much of it as we can get. Brandon Lowe Window Tint uses Acuity Architectural Films that are essentially a thermal shield that blocks the inflow of solar heat in the summer, and adds a layer of insulation to help retain heat in the winter. The amount of energy savings achieved per household depends on the window film used, the buildings construction and the climate in which the building is located. For example, there are window films available that reject from 35 percent of the solar energy for a neutral film that is virtually impossible to detect to 79 percent for a highly reflective film.