Standard Energy Efficient Glass
This is the standard energy efficient glass and provides outstanding performance in reducing heating and cooling cost.
High-performance Low-E4 SmartSun
Best Energy Efficient Glass
This gives you the benefits of Low-E4 plus helps shield your home from the sun's heat and UV rays. It has a very slight tint to the glass. Not available for some door panels.
High-performance Low-E4 Sun
Best Glass for Protection from Sunlight
This is bronze tinted for maximum protection from the effects of intense sunlight and the sun's heat while giving you the benefits of Low-E glass.