ERG™ Energy Reflective Glass

ERG™ Energy Reflective Glass permits 64 percent of the sun's natural light to enter your home while blocking 72 percent of its heat energy. That means you can expect a summer cooling cost savings of up to 25 percent and lower your heating cost by cutting heat loss by nearly 50 percent. The microscopically-thin heat-reflective coating blocks solar energy in the summer and reduces the escape of heat in the winter — all without altering the appearance of your window inside or out.

Cooler In The Summer
The total solar energy transmitted through ERG™ Energy Reflective Glass is almost 63% less than that transmitted by standard clear insulating glass.

• Lower SHGC numbers mean less summer heat
• Keeps interiors cooler
• Helps reduce cooling energy cost

Transmits Visible Light
ERG™ Energy Reflective Glass transmits about 80% as much desirable visible light as standard clear insulating glass.

• Provides exterior appearance similar to clear glass
• Provides glare control in bright, sunny climates

Reduces Ultraviolet Energy
ERG™ Energy Reflective Glass reduces fabric — fading UV energy 90% more effectively than standard clear insulating glass.

• ERG™ Energy Reflective Glass reduces fabric — fading UV energy 90% more effectively than standard clear insulating glass.

Warmer In The Winter
The winter nighttime R-Value (insulating value) of ERG™ Energy Reflective Glass is as much as 88% better than standard clear insulating glass.

• Higher R-values mean higher performance
• Reduces furnace heat loss
• Helps reduce heating energy