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Energy Star Rated Windows

Energy Star rated windows are an excellent investment for homeowners who are shopping around for replacement windows. Window replacement jobs completed with Energy Star rated windows are designed to be more energy efficient and to generally outperform all others. To qualify for the Energy Star label, a window must meet stringent standards set forth by the U.S. Department of Energy (DOE). These standards are written base on the uniform rating measurements in use by the National Fenestration Rating Council (NFRC). The NFRC is an independent, third party nonprofit organization that assigns specific energy efficiency measures to the whole window as a system, and not just the glass itself. After all, it is the entire window that must fight against the outside elements and work as a unit to battle heat loss and other performance related issues. Measures such as U factor, R value, and solar heat gain coefficient (SHGC) all are applied to the entire window system and not just to the glass itself.

Window Energy Star Qualification Standards

To qualify as an Energy Start rated window, a model must meet certain ratings criteria for each of four different climate zones for both U factor and SHGC levels. To achieve the performance that can help them qualify as Energy Star rated windows, manufacturers may use one or more different techniques in the window building process. For example, they may utilize two or more panes of glass. They might also place warm edge spacers between the panes. Many manufacturers have spent a lot of time and money working on improving frame materials to make it not only more rugged and durable, but more weather resistant and energy efficient. And as time goes by and the technology continues to improve, window manufacturers continue to make greater use of Low E coatings on the panes. Low E coatings are microscopically thin layers of material that minimize heat loss through the panes, keeping heat inside during the winter and outside in the summer.

Windows that qualify for the Energy Star label and participation in the program do not have to use any of the specific techniques or manufacturing methods described above, nor do they have to follow any specific process of the sort in order to qualify or be a part of the Energy Star program. In all likelihood, compulsory manufacturing techniques would discourage innovation and would thus stifle advancement in the area of window energy efficiency over time. And many of the gains the industry and specific manufacturers have made through the years have come by way of just that sort of innovation and trying out new things. The emphasis is not on process as much as it is on product. The results are what matter to the NFRC and to the Energy Star program.

Buy Energy Star Qualified Windows

Consumers who are in the market for new window replacement products for their home are wise to select Energy Star rated windows for their installation project. These units are the top of the line, the best that the industry produces. They do a great job of minimizing heat loss, increasing comfort, helping heating and cooling systems work more efficiently, and generally improving the quality of life for consumers who install them in their homes.

The investment in window replacement is a substantial one no matter which windows you choose. Energy Star rated windows are the best ones manufactured today. They are a great choice for any homeowner seeking to improve the look and the energy performance of their home. These windows are well worth the financial investment they require.

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