Energy efficient windows do more than just save you money on your heating and cooling costs, they keep you more comfortable year round. All of our windows and patio doors in Texas include standard SilverGuard3 high performance LowE Glass. You may wish to consider upgrading to our triple glass EnergyMiser2 option to maximize on energy efficiency.

What is LowE glass with Argon?

LowE Glass CutawayLowE glass is glass that has had an invisible metallic coating applied to the surface. This coating dramatically increases thermal performance by reflecting radiant heat. It is most effective when used in a sealed insulated glass unit that has been filled with inert Argon gas. Performance is even further improved when a warm edge non-conductive spacer is used to separate the two panes of glass. With the proper LowE coating the window will meet EPA Energy Star guidelines for energy efficiency.

Does LowE glass lower both heating and cooling cost?

heat-reflection-diagramYes, the LowE coating works to save you money and keep you comfortable in both heating and cooling seasons. In the winter radiant heat produced by your heating system is reflected back into your home. In the summer radiant heat from the sun is reflected so that the load on your cooling system is greatly reduced. Unlike dark tinted glass, LowE glass allows almost all visible light to pass through.

How do I select the right LowE coating for my climate?

The US government Energy Star program has taken the guesswork out of selecting the correct LowE coating for your climate. The program has set minimum performance criteria for each of four climate zones.

If you select a window that is Energy Star compliant for your climate zone you are assured of having a LowE coating that has been optimized for your climate.

Be sure to ask for Energy Star when you are selecting your replacement windows. At the Window Source you are assured in writing that your windows will always be Energy Star compliant for your climate zone. LowE glass will pay for itself quickly, keep your home more comfortable and reduce fading of fabrics inside your home.