Superior energy efficiency
LoDz-272® high performance glass
Two layers of silver coating make the clear difference. Cardinal LoDz-272® glass delivers year-round comfort in all types of weather. In the winter, it keeps the heat in. In the summer, its patented coating blocks 84% of the sun’s harmful ultraviolet rays and 59% of the sun’s heat. It even outperforms the tinted glass used in warm climates. You can see out and the light shines in, without colored tints to darken your home. It’s dark enough with our cloudy skies.