This material measures a mere 1.8 microns in thickness, which makes it thinner compared to the thinnest aluminum foil out there. It is made up of seven layers of silicon dioxide and hafnium oxide located on top of a thin layer of silver. Each of these layers will differ in terms of thickness, where they have been specially engineered to radiate infrared rays at a special frequency so that they can pass out of the building, going straight into the atmosphere without having to warm up the surrounding air. Not only that, this coating doubles up as an extremely efficient mirror, reflecting 97% of the sun’s rays from its surface.
In other words, it delivers an extremely efficient method of cooling down a building, while lowering the need for air conditioning. Looks like we are finding new ways to make use of existing materials to make our lives easier, right?