Reflective Cool Roof Materials

Pigmented coatings are less efficient than white coatings.

Reflective cool roof materials.

Aluminum roof coatings. Energy star certified roof products reflect more of the sun s rays. 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.

Standard or dark roofs can reach temperatures of 150 f or more in the summer sun. 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. The owens corning cool roof collection helps keep your roof cooler for a more comfortable home.

To rate the level of reflectiveness of different products manufacturers have come up with a classifying system. 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. This can lower roof surface temperature by up to 50f decreasing the amount of heat transferred into a building. Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles.

High albedo products such as bright white paint are the most effective with a solar reflectance of 85. 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. A high thermal emittance also plays a role particularly in climates that are warm and sunny.

Up to 70 when paired with a colored reflective coating. A cool roof under the same conditions could stay more than 50 f cooler and save energy and money by using less air conditioning. Cool metal roofing is a popular cool roofing material as it can offer more than twice the solar reflectance of traditional asphalt roofing. These typically come in mid range colors such as medium browns and grays.

Cool roof reflective coatings white roof coatings are opaque and reflective consisting of polymeric materials and some types of white pigment. Reflective roof coatings act like mirrors reflecting the sun s radiant energy back into space. Another factor is whether you opt to use standard roofing materials in light colors or install solar reflective shingles.