How Cool Roof Works

How it works most of the roofs in the world including over 90 of the roofs in the united states are dark colored.

How cool roof works.

The coolness of a roof can be determined by comparing two factors. A small fraction less than 10 arrives as invisible ultraviolet light. A professional will be able to determine the slope of your roof and what cool roofing system will work best. Solar energy is composed of ultraviolet uv rays visible light and infrared energy.

Science of cool roofs how do cool roofs work. A cool roof is a roof designed to maintain a lower surface temperature in bright sunshine than a traditional roof source. Reflective coatings for instance are difficult to apply evenly. Solar reflectance and.

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. Cool roofing is an emergent and powerful technology used for temperature control of buildings and areas. Standard or dark roofs can reach temperatures of 150 f or more in the summer sun.

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. Department of energy the surface of a cool roof reflects more sunlight and releases more heat than a so called hot or dark roof. To understand how roofs can keep cool in the sun you need to first understand solar energy.