Reducing Energy Costs - Energy Efficient Windows

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If you are renovating your home or building a new home, then shop for energy-efficient windows. Energy-efficient windows will save you money year-round. During the winter they trap warm air inside and keep cold air outside. During the summer you run your air conditioner less because the cool air cannot leak out through your windows.

You can save up to 15% on your energy bill by using energy-efficient windows . While savings vary from region to region, they are greatest where there are very hot summers, very cold winters, or both. For example, consumers in the Northeast should strongly consider energy-efficient windows because of the region's long cold winters and hot humid summers.

During the winter inefficient windows allow the cold to seep into your home. In addition, the inside surface of an inefficient window is cold enough to pull heat away from your body if you sit near it; you can feel a chill even with a sweater and a high setting on the thermostat. With energy-efficient windows you can place your favorite reading chair near the window and feel comfortable when the temperature drops below freezing.

Energy-efficient windows also reduce condensation on cold winter mornings. When an inefficient window or frame gets too cold, moisture can collect and freeze on the interior surface. Too much condensation can harm windowsills, create cracks in paint and even contribute to the growth of mold. Energy-efficient windows can reduce the possibility of condensation by keeping the interior of the glass and frame at a higher temperature. With the reduction of moisture you will even get a better view on cold winter mornings.

In the summer an average double pane window lets approximately 75% of the sun's heat enter your house. Most energy-efficient windows shield out most of that heat without reducing the light you want for reading and ambience.

When shopping for windows you need to decide which type of window will work best in your home. You need to take into account your home's design, factor in the size of the windows, the direction they will face, and your climate.

Note that the energy efficiency of windows depends upon all of its structural components. This includes the frame, the glazing on the glass, and the mechanism for opening and closing the window.

The United States government's Energy Star program rates the efficiency of consumer goods, including windows. Energy Star estimates that a typical household will save $126-$465 a year when replacing single-pane windows with Energy Star windows. The government program also estimates that an average household will save $27-$111 when using Energy Star windows instead of double-pane replacement windows. If you purchase Energy Star windows there are programs that provide local rebates in certain areas and even federal tax credits to reimburse you for part of your purchase. For more information about the Energy Star program visit http://www.energystar.gov.

Unfortunately, the most energy-efficient window can be rendered useless if it is not properly installed. The Department of Energy recommends that you have a professional install your windows. However, many experienced do-it-yourself homeowners tackle the job themselves successfully. If you are unsure of your capabilities, hire a professional.

When installing windows the window opening must be seamlessly sealed into the home’s weather resistant barrier to prevent water leaks. You should avoid using tapes or sealants to waterproof your windows because these can fail eventually.

Also, the Department of Energy recommends that drainage be diverted onto the face of the weather resistant material. You should not apply tape or sealants behind the bottom flange of the window or water might eventually be trapped there during inclement weather.

Finally, make sure your windows will perform efficiently with a good air seal. You will need to caulk the back sides of the window on the exterior of the house and seal the gap between the window frame and the house from the interior of your home. Filling this crack with insulation will not prevent the flow of air between the exterior and interior of your home.

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