One of the greatest window innovations is the addition of Low-E Glass and gas filled insulated glass units (IGUs). That improvement happened back in 1981 roughly 35 years ago. So, it’s hard to imagine all these years later that there are still so many older homes with single pane windows that can’t take advantage of this technology.
Woodland Windows and Doors Blog
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Perhaps no term is uttered more frequently, in the world of windows, than Low-E. By now, most people think they know what that means, but few know what it means for their home. This is because continued advances in glazing (glass) technologies allow you, with a little advance planning; select from different Low-E finishes for different windows in your home. With minimal effort your budget will go further and you’ll get a more energy efficient home.
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A Northern Climate
In a nutshell, our northern region climate is dominated by heating energy use. Our summers can get hot and humid requiring air conditioning, but heat waves are usually short lived, while winter is cold and long. It’s a straightforward decision to choose windows with a higher SHGC (solar heat gain co-efficient), which means the window, will reflect heat back into the home, collecting more solar heat.
In addition to our northern climate, you want to consider the orientation of the windows in your home. Specifying Low-E requirements for different windows allows you to maximize your home’s comfort and spend your money wisely. In other words, it’s no longer, one size fits all, and instead Low-E comes in a sophisticated array of options to meet your exact needs.
Here are simple northern region strategies to consider when planning a remodel or new home.
South facing windows: Choose a high SHGC glazing – above 0.40. South windows are a good source of passive heat in winter, but if you use this strategy you also need a roof overhang that provides shading in the summer.
West facing windows: Choose a low SHGC glazing to reduce much unwanted afternoon summer heat gain. Overhangs don’t work well against the low evening sun.
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East facing windows: Like west facing windows, keep the size of these windows to a minimum in order to control unwanted solar gain or loss. Most people select a low SHGC, however some prefer a high SHGC glazing as a good way to warm cool mornings.
North facing windows: Minimal contribution to the temperature control of your home’s interior.
Woodland Windows & Doors Project Bartlett, Ilinois
A home without beautiful windows will be lifeless and dull. Your home needs a window for light, fresh air, insulation, and more. But it’s vitally important to have the best window installed in your house. About 20 to 25% of a home’s heating and cooling use attributed to doors and windows, according to the U.S. Department of Energy. Thus, you need to be very careful when choosing replacement windows. There are many aspects to be kept in mind. To get the most out of your replacement windows for your home, you need to know certain key things, and here are some of them.
Replacement windows come in wood, clad wood, aluminum, vinyl, and fiberglass. Each has its own features and performs differently. Vinyl, also known as polyvinyl chloride plastic, is one of the most popular materials for replacement windows. The material is less expensive which makes it more attractive, but the minimal choice of colors makes it less versatile. Aluminum is strong and less heavy, but not very efficient. Wood windows remain the top choice for replacement. Wood is naturally beautiful and can be painted into different colors to match many home styles. However, unlike vinyl, wood require lots of maintenance.
Low-E Glass (low-remittance) coatings are thin, nearly invisible, metallic oxide films placed on a glazing surface in order to minimize the U-factor by preventing heat transfer or heat flow. Coating the glass surface of a window with a Low-E Glass material and depositing coatings between the glass layers suppress heat flow through the window. Choosing Low-E Glass will help to keep your home cooler in the summer and warmer in the winter.
Between the panes of double or triple paned replacement windows, an inert gas such as Krypton or Argon is placed in to improve its thermal performance. Krypton or Argon is used because the two are denser than normal air. They are harmless, have higher resistances to heat transfer than typical air, thus they are good for lowering the window’s U-Factor.
Single, Double and Triple Paned Windows
Most replacement windows come in three styles: single, double, or triple pane glass windows. A single pane window is typically less expensive, but it offers little or no insulation. Double and triple pane replacement windows have layers of glass between the panes to minimize heat loss through the window.
Other aspects may include cost, maintenance required, solar heat gain coefficient, and air leakage. The cost of a replacement window will depend on the design, material, and size of the window.