The Roof Be Cool

A cool roof is a roof designed to maintain a lower surface temperature in bright sunshine than a traditional roof source.

The roof be cool.

A cool roof prevents heat absorption by reflecting the sun s heat and then emitting its radiation back into the atmosphere. By doing this cool roofs allow for a more comfortable and controlled indoor environment. Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles. A cool roof reflects most of the incident sunlight and emits some of the absorbed radiation back into the atmosphere instead of passing the heat on to the building below.

As a result the roof stays cooler maintains a lower surface temperature keeping the building below at a cooler and more constant temperature. A cool reflective roof stays 50 to 60 degrees cooler when exposed to the same summer heat. Cool metal roofing is a popular cool roofing material as it can offer more than twice the solar reflectance of traditional asphalt roofing. The primary advantage of a cool roofing system is that business owners can expect to use less energy to cool their small businesses.

In hot climates traditional roofs in the contiguous united states can reach temperatures of 150 to 185 degrees fahrenheit. Compared to the 30 solar reflectance of asphalt shingles that s a dramatic difference. The surface of a cool roof reflects more sunlight and releases more heat than a so called hot or dark roof.