The key to reducing heat in the summer is to keep the sun's rays from reaching the window by installing awnings or overhangs above windows that receive a lot of direct sunlight. Window films that adhere to the window surface can reflect unwanted summer sun. Solar screens designed to block the summer sun can also be effective. If you're on a tight budget or there are windows in vacant rooms that you don't really use, you can fasten plywood onto the frame on the outside of the house and cover the inside with rigid foam insulation. Another low-cost measure for these areas that can produce as much savings as storm windows is to fashion a plastic weather barrier that adheres to the frame. Building-supply retailers sell a clear plastic and framing material that can be shrunk into place by using a hair dryer. To learn more about improving the efficiency of older windows, visit www.energystar.gov or www.energy.gov. You may also want to check with your local electric co-op for additional information on improving window efficiency. Sources: www.energystar.gov, www.energy.gov/ energysaver/energy-efficient-windows, www.diynetwork.com/how-to/rooms-and-spaces/ doors-and-windows/how-to-make-old-windowsmore-energy-efficient Even an old window that looks beyond repair can sometimes be refinished and re-glazed to like-new condition. This column was co-written by Pat Keegan and Brad Thiessen of Collaborative Efficiency. For more ideas on energy efficiency, please visit: www.collaborativeefficiency.com/energytips. www.co-opliving.com June 2017 | Cooperative Living | 27 MINNESOTA WINDOW RESTORATIONhttp://www.energystar.gov http://www.energy.gov http://www.energystar.gov http://www.energy.gov/ http://www.diynetwork.com/how-to/rooms-and-spaces/ http://www.collaborativeefficiency.com/energytips http://www.co-opliving.com