Windows are a significant cause of heat loss during the winter. The best solution is to replace old, single-pane windows with energy-efficient double-pane windows, but this is prohibitively expensive for many people. Here are some easy, inexpensive ways to help prevent heat loss through drafty windows and doors.
Install weatherstripping to close gaps around windows and doors and prevent cold air from leaking through. There are a number of different types of weatherstripping, including self-adhesive foam strips, self-adhesive silicone, vinyl gaskets, and caulking. To seal the gap underneath doors, install plastic or metal doorsweeps or thresholds.
Cover windows with plastic insulating film to keep heat in. The film adheres directly to the glass. It is inexpensive, simple to install, and can be removed in the spring when the weather gets warmer. An even less expensive solution is to simply cover windows with plastic sheeting and secure it with push pins, staples or tape.
Install insulating window panels, which are even more effective than plastic film or sheeting to keep warm air in and cold air out. They consist of a wooden or aluminum frame and a clear plastic pane, and they are mounted on the inside of the window. Custom-fitting insulating panels can be purchased, but they are also simple to make by following these detailed instructions.
Cover windows with heavy drapes or shades to further help prevent heat loss through windows. Open the drapes or shades during the day when the sun is shining through to capture some solar energy.
