With the new tax credits, replacing windows is the best way to save energy. Sometimes, however, replacement is not an affordable option. Here are some energy saving tips for windows to help you avoid replacement costs.


Add storm windows.
Actually sometimes storm “windows” is a misnomer. There are good sheet and film products that can be applied to the interior or exterior of your home to cut down on heat loss and air leaks. And, there are windows, both exterior and interior, too. Exterior windows should have weep holes so that any moisture that collects between the storm window and the regular window can escape without damaging the frames. Interior windows seal better, are more convenient to install, and are not exposed to the outdoors, giving them more life. Storm window frames have to be selected correctly. Aluminum frames are a poor insulator. Wood is fine but is heavy and weathers; it is best to have vinyl-clad wood frames. All-vinyl frames will crack and fade. Other things to consider are the glass and glazing factors. Double and triple glaze offer the best insulation. Some windows also have gas filled glass. One type of gas used is argon, which is less expensive, but the more expensive krypton has better thermal protection. For those of you living in hot climates Low E, or Low-Emmittance, windows help block sunlight.

You can also use caulking and weather-stripping to improve window energy efficiency. Caulking comes in cartridges and is usually applied with a caulking gun. You can plan one half a cartridge for each window or door, but you will need as many as four for the foundation sill. There are water-based caulking products which are easy to clean up but are not as efficient as expandable foam caulking or silicone. Weather-stripping is another possibility for around doors and windows. Felt is cheap and easy to install but not as efficient as vinyl or metal. Finally, silicone sealing is used to address air leaks inside your home in smaller places. Check around incoming cable and phone lines, around your mail chute and around your vents, like dryer vents.

Last are window treatments that can save on replacement window costs and help you save energy. Blinds, awnings, and overhangs will keep air conditioning costs down. Shutters, insulated panels, and draperies will keep heat in but do not double as well to prevent air leaks in from the cold.

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