LoE2 Glass is coated with two microscopically thin metallic layers, which reflect radiant heat while permitting the passage of visible light. In hot climates, LoE2 glass reflects unwanted solar heat, helping to keep your home cooler and reduce cooling costs. LoE2 glass helps keep your home warmer in the winter as well by reflecting radiant heat back into your home. This not only keeps you more comfortable, but helps to reduce heating expenses also. LoE2 glass blocks 84% of ultraviolet rays, which will protect your drapes, furnishings and carpets from fading caused by the sun

Some manufacturers are using one of several types of inert gas to replace the air between panes of glass. Argon gas is most commonly used because of its high insulating value and its relatively low cost. Gas-filled double-paned windows can achieve U-values of 0.33 or lower.

Tempered glass, sometimes referred to as safety glass, is 4 to 5 times stronger than ordinary annealed window glass. This provides an extra measure of protection for your family. When tempered glass breaks, it breaks into small pieces that are not sharp or jagged. In the event of an accident, someone is much less likely to be hurt.