Reflective Cool Roof Materials

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

Reflective cool roof materials. Owens corning cool roof collection shingles are specially designed to reflect the sun s energy and absorb less heat than standard shingles without limiting your color options. High albedo products such as bright white paint are the most effective with a solar reflectance of 85. Energy star certified roof products can help reduce the amount of air conditioning needed in buildings and can reduce peak cooling demand by 10 15 percent. There are different cool roof standards for commercial low slope roofs and residential steep slope roofs.

A high solar reflectance or albedo is the most important characteristic of a cool roof as it helps to reflect sunlight and heat away from a building reducing roof temperatures. Aluminum roof coatings. Standard or dark roofs can reach temperatures of 150 f or more in the summer sun. Residential roofing options include asphalt shingles metal clay tiles and concrete tiles.

With the recent release of cool shingles like the timberline cool series from gaf and the 1 500 energy star tax credit for cool roofing materials many folks are asking whether the any energy savings are worth the additional cost. To rate the level of reflectiveness of different products manufacturers have come up with a classifying system. Cool metal roofing is a popular cool roofing material as it can offer more than twice the solar reflectance of traditional asphalt roofing. Pigmented coatings are less efficient than white coatings.

Up to 70 when paired with a colored reflective coating. These typically come in mid range colors such as medium browns and grays. Another factor is whether you opt to use standard roofing materials in light colors or install solar reflective shingles. The owens corning cool roof collection helps keep your roof cooler for a more comfortable home.

A high thermal emittance also plays a role particularly in climates that are warm and sunny. Energy star certified roof products reflect more of the sun s rays. Commercial cool roof options include bright white membranes and white coatings. Darker shades such as red green and blue reflect only 20.

Compared to the 30 solar reflectance of asphalt shingles that s a dramatic difference. Solar reflective shingles range between 2 and 3 per square foot depending on manufacturer and vendor. Cool roof reflective coatings white roof coatings are opaque and reflective consisting of polymeric materials and some types of white pigment.