Are Low-E and Argon Gas Windows Worth The Higher Price Tag?

As heating and cooling costs continue to rise, more homeowners than ever are exploring the possibility of installing replacement windows that are more energy efficient. There are several possibilities available, but two of the most popular window replacement options available are low-e and argon filled. These can cost substantially more than standard double or triple-paned styles, however, and some buyers aren't sure they are worth the higher price tag. Understanding how each of these styles works can help you make the right decision when you're ready to purchase new windows.

Low-E Stands For Low Emissivity

Low emissivity windows were introduced in the late 1970s and quickly became the style of choice for high-end homebuilders and anyone who wanted a window that was more eco-friendly. Low-e windows have a very thin, metallic layer either applied to the inside of one pane of glass or sandwiched as a thin, metallic film between two layers of glass. As long as the filmisn't exposed to the air, it will work efficiently by reflecting the warmth of the interior of a house back into the home while reflecting summer heat back out. Low-e also protects your home furnishings and your family from too much ultraviolet light by reflecting ultraviolet waves while letting visible light into your home. You can save anywhere from 5% to 15% on home heating and cooling each year if you replace older panes with low-e windows.

Argon Gas Increases The Efficiency Of Any Low-E Window Replacement

Argon is an inert gas much like oxygen in that it is odorless, tasteless and colorless. It is heavier than air, however, and slows the loss of heat by acting as an insulator. When added to low-e, it can decrease heat loss by up to 25%, an impressive savings that should be reflected in substantially lower fuel bills. There are double and triple-paned argon gas windows available. In order to add it between the panes of glass, the manufacturer pumps out air from between the panes, creating a vacuum, then injecting the gas to fill the space. Because it is heavier than air, it will reflect home heat back into the house. This can also reduce condensation on the glass because the inside will remain warmer during colder months. Because the interior is kept closer to the internal temperature of the room, argon gas also helps minimize cold spots and drafts.

Savings And Protection At A Reasonable Price

If you're still not sure whether you want to invest in low-e and argon windows, take a look at your energy bills for the last few years. Now calculate how much you would save with a complete window replacement for every room in your home. Simply multiply anywhere from 5% to 25% to determine your potential savings. You should also consider the fact that your home furnishings will last longer with less fading if you opt for low-e glass. This can save you money on replacement carpeting and furnishings. For most homeowners, the benefits far outweigh the one-time cost.