What is Heat Mirror?
TOP Heat Mirror glass is a patented triple-glazed unit that suspends a proprietary mix of metals unto a polyester substrate that is suspended between two pieces of glass. The result is a highly-insulated glass unit with center-of-glass R-values as high as R9.1, and a glass unit that filters out 99.5% of the harmful ultra violet rays. Sound deadening is also improved with the double chamber created in a triple unit.