Heatstop skylight
The polycarbonate Heatstop skylight is heat-reflective thanks to the Heatstop coating, which filters out infrared rays from the sun. This reduces the heating (caused by infrared rays) under the skylight to a minimum. The polycarbonate Heatstop skylights are burglarproof because their impact-resistance
is 250 times higher than glass that is equally thick. This skylight is always opal (even when the underlying skylight shells are clear).