What are good energy efficient windows?
- OUR MOST POPULAR ENERGY EFFICIENT GLASS OPTIONS: DOUBLE PANE EXTREME LOW-E WINDOW GLASS.
- ULTRA TRIPLE PANE GLASS. Highlights.
- ULTIMATE TRIPLE PANE GLASS. Highlights.
- SOLARBAN 70XL WINDOW GLASS.
- SUPER SPACER WINDOW GLASS.
- LAMINATED WINDOW GLASS.
- ENERGY SAVER R-5 WINDOW GLASS.
Furthermore, what makes a window energy efficient?
Anatomy of an Energy-Efficient Window Low-E Glass: Special Coatings reflect infrared light, keeping heat inside in winter and outside in summer. Gas Fills: Some energy-efficient windows have argon, krypton, or other gases between the panes. These odorless, colorless, non-toxic gases insulate better than regular air.
Also Know, do energy efficient windows work? Glass coating For energy efficient windows, a Low-emissivity glass also known as Low-E glass is used to help block the rays of the sun (90% in fact) and keep the heat inside when it's cold and outside when it's hot. There are also many glazing options, which include tints, gas fills, and reflective coatings.
Also to know, what is a good U value for a window?
In a cold climate a good U-factor for a window is between 0.17 and 0.39. (That's between R-6 and R-2.5). Lower is better with U-factor--the opposite of R-value, when higher is better. The low end of that range is only achievable with higher-quality triple-glazed windows--windows with three layers of glass.
What is a good Energy Star rating for Windows?
Energy Performance Ratings U-Factor ratings for windows generally fall between 0.20 and 1.20. The lower the U-value, the greater a window's resistance to heat flow and the better its insulating value. (The window's insulating value is indicated by the R-value, which is the inverse of the U-value.)