How Cool Roof Works

A cool roof under the same conditions could stay more than 50 f cooler and save energy and money by using less air conditioning.

How cool roof works.

The coolness of a roof can be determined by comparing two factors. Science of cool roofs how do cool roofs work. Cool roofs can also enhance roof durability and reduce both building cooling loads and the urban heat island effect. 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. Cool roofing is an emergent and powerful technology used for temperature control of buildings and areas. Reflective coatings for instance are difficult to apply evenly. To understand how roofs can keep cool in the sun you need to first understand solar energy.

A small fraction less than 10 arrives as invisible ultraviolet light. A cool roof is a roof designed to maintain a lower surface temperature in bright sunshine than a traditional roof source. Solar energy is composed of ultraviolet uv rays visible light and infrared energy. 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.

Department of energy the surface of a cool roof reflects more sunlight and releases more heat than a so called hot or dark roof. Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles. While the term cool roof is sometimes used to describe any roofing surface that is cooler than a standard rooftop green certification. A professional will be able to determine the slope of your roof and what cool roofing system will work best.