Guardian’s ClimaGuard High Performance Low E Glass Every IntelliGlass window replacement package has an energy efficient foundation. With a patented formula, ClimaGuard Low E meets the rigorous challenge of regulating your home’s interior to keep you cool when its hot and warm when its not!

• Two microscopic layers of silver reflect heat back to its source.
• Titanium dioxide layer protects the silver so the glass maintains its optical clarity for a lifetime
• Argon or krypton gas acts as a warm blanket between the panes of glass, adding extra insulation
• Your home is cooler in the summer, as solar heat is reflected away
• Your home is warmer in the winter, as furnace heat is reflected back into the home

*IntelliGlass X – 1 pane of solar control Low E glass
Total window values for an average double hung with no grids. Window performance may vary due to material and manufacturing variations. All calculations made using National Fenestration Rating Council methodology and LBL Window 5.2 simulation software.