High Sri Grey Gray Roof

Relative ability of roof surface to emit release absorbed.

High sri grey gray roof.

Duration series shingles are unrivaled by any other architectural shingles because they feature our patented surenail technology a technological breakthrough in shingle design. Total solar reflectance tsr. The sr value is a number from 0 to 1 0. Owens corning oakridge 32 8 sq ft estate gray laminated architectural roof shingles.

The series highlights our popular duration shingles along with up to 7 other duration styles depending on where you live that feature unique performance characteristics. Cool asphalt roofing shingles are characterized by 3 key values. Solar reflectivity or reflectance is the ability of a material to reflect solar energy from its surface back into the atmosphere. Even if not required by energy codes cool asphalt roofing shingles may lower the cooling load on a home in hot climates.

Sri measures the roof s ability to reject solar heat defined such that a standard black reflectance 0 05 emittance 0 90 is 0 and a standard white reflectance 0 80 emittance 0 90 is 100. Ref cool roof rating council solar reflectance index calculation worksheet. Some heat that was absorbed by roof is transferred into the building. Tsr e and sri values.

Understanding how a construction material like metal roofing or siding will interact with the sun can help a building prepare for weather conditions minimize heating or cooling costs and reduce heat island effects in urban areas. Item 10097 model 1093059. Berridge metal products have a high recycled content and are 100 recyclable at the end of their lifespan. Timberline hd reflector series plus shingles can be used to comply with 2016 title 24 part 6 cool roof requirements of the california code of regulations.

Cambridge tm cool colors reflect a percentage of solar radiation. Recycled content of berridge metal. Timberline hd reflector series plus shingles are rated by. Solar reflectance thermal emittance and solar reflectance index sri.

Solar reflectivity r solar reflectance index sri by color. This may increase your home s energy efficiency and help the environment. Sri can be calculated based on the pitch of a roof its weight its solar reflectance thermal emittance and its ageing characteristics. The sri value reflects how well a roof rejects solar heat.

A value of 0 indicates that the material absorbs all solar energy and a value of 1 0 indicates total reflectance. Solar radiation heats the roof surface. The selection of materials with a high sri can reduce indirect solar gain in buildings and reduce the urban heat island effect.