TECHNOLOGY
Sustainable Living
Seal Air Leaks to Save Energy This Winter As the days get shorter and temperatures get cooler, it’s an ideal time to prepare your home for winter. Sealing air leaks should be at the top of your to-do list. This is an effective way to increase comfort and, according to the U.S. Department of Energy, could save up to 20 percent on energy costs.
to the edges and add at least four one-inch pieces of foam board insulation on the back of the door or hatch. Another option is to apply an insulated attic stair cover. If you have a hatch, seal the opening with self-sticking weatherstripping.
Air sealing may sound like a daunting task, but some of it can be a DIY project. There are simple steps you can take to help keep your heated air inside this winter.
Caulk for Drafty Windows Caulk is a flexible material that can be used to seal air leaks around windows. Caulking compounds come in a variety of strengths and prices. Most are available in disposable cartridges that fit in a caulking gun. Additionally, some caulk comes in squeeze tubes, ropes, or aerosol cans.
Weatherstripping for Doors Weatherstripping works well to seal air leaks around movable components, like doors. It is available in many different materials, so it’s important to choose the right type for your project. • Door bottom: Weatherstripping applied to a door bottom can drag on carpet. It should be able to withstand wear and tear and friction, as well as temperature changes. Door-sweep weatherstripping is a good option. The mount is made of aluminum or stainless and the “sweep” is a brush made of plastic, vinyl, sponge, or felt. Door-sweep weatherstripping is easy to install and adjusts for an uneven threshold. • Sides and top of your door: Choose a product made of felt, foam, tape, rubber, or vinyl. Proper application is key. Be sure your weatherstripping meets tightly in the corners. Apply one continuous strip along each side and then seal the entire door jamb. Don’t forget your attic door or hatch. For pull-down attic stairs or an attic door, apply weatherstripping 16 Additional photos at homeelementsandconcepts.com
Good options for windows include: • Water-based foam • Expandable spray foam, which works well for large or irregular gaps • Rubber, which can last 10 years or more • Temporary caulk, which can be applied to the inside of windows and peeled off when the weather warms up in spring Caulk should be applied during dry weather when the temperature is at least 45 degrees Fahrenheit. Apply caulk in one continuous stream. Be sure to seal cracks completely and allow sufficient time for the caulk to dry. It often takes 24 hours for it to fully cure depending on weather. Window film is another inexpensive way to help reduce drafts and condensation in winter. It’s easy to apply and can even be used over mini blinds. If you have an older home, remember to change your screens to storm windows.
