How Cool Roof Works

A cool roof prevents heat absorption by reflecting the sun s heat and then emitting its radiation back into the atmosphere.

How cool roof works.

To understand how roofs can keep cool in the sun you need to first understand solar energy. Solar reflectance and. A cool roof under the same conditions could stay more than 50 f cooler and save energy and money by using less air conditioning. Some single ply membranes may be installed on high sloped roofs but the most effective solutions for high sloped roofs are cool roof shingles and tiles.

A professional will be able to determine the slope of your roof and what cool roofing system will work best. A small fraction less than 10 arrives as invisible ultraviolet light. Reflective coatings for instance are difficult to apply evenly. Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles.

Slightly less than half of sunlight is visible. How it works most of the roofs in the world including over 90 of the roofs in the united states are dark colored. Department of energy the surface of a cool roof reflects more sunlight and releases more heat than a so called hot or dark roof. The coolness of a roof can be determined by comparing two factors.

Cool roofing is an emergent and powerful technology used for temperature control of buildings and areas. Cool roofs can also enhance roof durability and reduce both building cooling loads and the urban heat island effect. Science of cool roofs how do cool roofs work. Solar energy is composed of ultraviolet uv rays visible light and infrared energy.