High-Performance™ Low-E4® Glass

Our complimentary glass option offers superior comfort and performance. It provides excellent insulation from heat, cold and sound, and has 11 microscopic coatings that cut UV transmission down to 17% with virtually no effect on the clarity or color of light. A special exterior coating activates with sunlight to reduce water spots up to 99%. A removable translucent film shields the glass from damage and simplifies finishing and cleaning on the job site.

Less Water Spots & Easy Cleaning
High-Performance Low-E4 glass features an invisible titanium dioxide coating that creates a smoother glass surface. When the coating is activated by sunlight, dirt is loosened for easy cleaning, and the pooling action of water on the glass is reduced. The glass dries quickly and evenly with up to 99% fewer water spots and exterior dirt build-up is minimized.

*exterior glass only, when activated by sunlight

Adds Thermal Protection
High-Performance Low-E4 glass employs a hermetically sealed system for optimal insulation from heat, cold and sound. A patented low-conductivity spacer separates the two panes of glass. The space between the two panels is filled with an argon gas blend to minimize the thermal transfer. Compared to ordinary dual-pane glass, High-Performance Low-E4 glass is 35% more energy efficient in winter, 41% more efficient in summer. Depending on where you live, that can cut your energy bills up to 25%†.

†A study of identical homes comparing Low-E4 to ordinary dual pane glass showed 25% in savings on cooling bills. 10% on heating bills. Savings may very geographically.

Helps Keep UV Rays Outside
High-Performance Low-E4 glass works like sun block to help filter ultraviolet (UV) rays that can fade fabric and damage furniture. Ordinary dual-pane glass lets 63% of UV light pass through. High-Performance Low-E4 glass is layered with 11 microscopic coatings that cut UV transmission down to 17% with virtually no effect on the clarity or color of the light that enters your home.

Reduces Sound Penetration
With High-Performance Low-E4 glass, unwanted sound penetration from the outside world is kept at bay. High-Performance Low-E4 glass reduced unwanted sound penetration significantly when compared to single-pane glass.

Removable Film Helps Protect Glass
High-Performance Low-E4 glass is protected by a removable translucent film that helps to shield it from damage and simplifies finishing. It also saves on the time it takes to mask the glass when painting or staining.