Energy-efficient windows offer numerous advantages for your home. However, you still might be wondering to yourself, “How do they work?” As a leading siding replacement and window installation contractor in the area, we answer some of the frequently asked questions about energy-efficient replacement windows.
What Is Insulated Glass?
Despite the name, a window’s insulating glass doesn’t actually have a foam, fiberglass or any similar material in the glass panel itself. In fact, the sealed vacuum between the two glass panes serves as the insulating layer. That’s because it doesn’t have air molecules to facilitate heat transfer, which is the reason behind heat gain in summer and heat loss in winter.
What Are Insulating Gas Fills?
Thanks to modern window technology, manufacturers can fill the airspace between the glass panes with a blend of inert gases like krypton and argon. They’re far better insulators than air and can increase the windows’ thermal efficiency by slowing down heat transfer and improving insulation.
What Does “Low-E” Mean?
You might have heard of this term from window companies you see online. It means “low emissivity,” and it refers to a surface condition that emits low levels of heat energy. Low-E windows have special glass coatings that are spectrally selective, which means they admit as much daylight as possible while effectively blocking ultraviolet rays from entering your home. With these, you can be sure your interior fixtures won’t fade when exposed to sunlight.
How Can I Tell If the Window Is Energy-Efficient?
Energy-efficient windows come with the ENERGY STAR® label. This noticeable blue label indicates that the product meets the federal government’s standards for energy efficiency. They also have energy performance ratings provided by the National Fenestration Rating Council (NFRC). Information such as the windows’ U-factor, solar heat gain coefficient (SHGC), and visible transmittance allows you to compare between window brands and find the best one that is compatible with your needs.
For your window replacement needs, turn to Austin Pro Siding, Windows, & Roofing. As one of the leading replacement window and vinyl siding contractors in the area, we can provide stronger, safer and more energy-efficient window products from brands like Simonton, Don Young Company and Andersen Corporation.
Learn more about our vinyl, aluminum, and composite windows by calling (512) 550-0000 (Austin) or (210) 906-0046 (San Antonio). You may also fill out our contact form to request an appointment.