One of the most important aspects of green building is design. Matt Risinger shows us how a properly designed house uses awnings, overhangs, and porches to protect windows from summer sun and exposure to rain. On a house that Risinger's company built a few years ago, the windows on the side are shaded with canopies, protecting the home from the hot summer sun. The inside is shaded during the day, but plenty of daylight still comes through the home. The windows are also protected during rain. The front porch is deep and fully shades the front windows, creating a cool space to be during the day. Light is reflected off the Galvulume metal roof, Risinger's favorite type of roof for warm-climate spaces.