How Cool Roof Works

Solar energy is composed of ultraviolet uv rays visible light and infrared energy.

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. The coolness of a roof can be determined by comparing two factors. A cool roof is a roof designed to maintain a lower surface temperature in bright sunshine than a traditional roof source. Slightly less than half of sunlight is visible.

A small fraction less than 10 arrives as invisible ultraviolet light. Department of energy the surface of a cool roof reflects more sunlight and releases more heat than a so called hot or dark roof. While the term cool roof is sometimes used to describe any roofing surface that is cooler than a standard rooftop green certification. Solar reflectance and.

A cool roof prevents heat absorption by reflecting the sun s heat and then emitting its radiation back into the atmosphere. A professional will be able to determine the slope of your roof and what cool roofing system will work best. Cool roofing is an emergent and powerful technology used for temperature control of buildings and areas. Science of cool roofs how do cool roofs work.

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. Cool roofs can also enhance roof durability and reduce both building cooling loads and the urban heat island effect. How it works most of the roofs in the world including over 90 of the roofs in the united states are dark colored.