Why Andersen? A number of factors contribute to a window or door’s performance — from UV protection and solid wood construction to low maintenance longevity. Learn more about Andersen’s unique combination of essential elements. Ordinary dual-pane glass lets 62% of UV light pass through.
Our High-Performance™ Low-E glass cuts that down to 17% with virtually no effect on the clarity and color of the light. With Low-E glass, if your thermostat is set at 70°, the temperature of the innermost glass pane won’t drop below 57° even if it’s 0° outside. In warm climates, Low-E glass works just as hard to keep your home cool.
For extreme climates, we also offer High-Performance Sun™ glass for maximum UV protection and temperature control. All Andersen® windows and doors feature the Perma-Shield® system, which protects the window’s exterior beautifully for decades.* It also eliminates the need to paint—and repaint. The material used to make a frame determines a window’s thickness, weight, and durability, and it also has a major impact on its thermal characteristics.
The frame is also used in determining a window’s U-Factor. Since the sash and frame represent from 10 to 30 percent of the total area of the window unit, the frame material will definitely influence the window performance.