Infiltration occurs when cold air leaks into your house through your windows, making your home feel drafty and uncomfortable. As cold air is coming in through the leaks, and warm air is escaping through other leaks, the biggest leaks for escaping air are often found in the windows, entry doors, the attic, and recessed lights. Does this sound like your home?
Conduction occurs when Mother Nature is heating and cooling the glass from the outside, while your home is trying to do it from the inside. Guess who wins? An example of Mother Nature winning the conduction game is icicles forming around the edge of the window. It's no accident that heating and cooling vents are placed in front of windows.
Radiation is just what it means. Like a car's radiator, your windows, will radiate your heating or cooling dollars right out the window.
From 2004 to 2008, the price of natural gas tripled. We all know that it will never go down. So it's a safe bet that replacing your windows is a sure investment. You can expect to save from 30% to 50% on your energy bills when replacing your windows.
Now, what makes windows energy efficient and saves you a ton of money on your energy bills? You might be surprised to learn that multi-pane glass is no longer the main measure of efficiency. New advanced technologies and designs have dramatically improved the performance of most energy efficient windows. Glass coatings, gas fills, warm edge spacer technology (which eliminates the icicles around the edge of the inside glass), and improved framing materials enable replacement windows to deliver more benefits than just simple double pane windows.Bottom Line – Be sure to purchase energy efficient windows that will pay for themselves over time. Look for the Energy Star Rating.