High Sri Grey Gray Roof

Solar reflectivity r solar reflectance index sri by color.

High sri grey gray roof. Some heat that was absorbed by roof is transferred into the building. Total solar reflectance tsr. Cambridge tm cool colors reflect a percentage of solar radiation. Sri can be calculated based on the pitch of a roof its weight its solar reflectance thermal emittance and its ageing characteristics.

Solar reflectivity or reflectance is the ability of a material to reflect solar energy from its surface back into the atmosphere. Sri flagstone brown 0 32 31 sierra 0 29 27 pewter 0 29 27 green slate 0 28 26 adobe 0 24 21 taupe 0 23 20 silversmoke 0 23 20 cobblestone 0 21 18 kailua 0 19 14 light gray 0 15 9 dark gray 0 12 6 graphite 0 08 1 davis colors concrete palette hydrotint mix ready w 1000. Tsr e and sri values. Timberline hd reflector series plus shingles meet green building standards code of los angeles county for residential buildings.

This may increase your home s energy efficiency and help the environment. Duration series shingles are unrivaled by any other architectural shingles because they feature our patented surenail technology a technological breakthrough in shingle design. The sr value is a number from 0 to 1 0. Solar reflectance thermal emittance and solar reflectance index sri.

A value of 0 indicates that the material absorbs all solar energy and a value of 1 0 indicates total reflectance. Relative ability of roof surface to emit release absorbed. 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. Item 10097 model 1093059.

Owens corning oakridge 32 8 sq ft estate gray laminated architectural roof shingles. Cool asphalt roofing shingles are characterized by 3 key values. Solar radiation heats the roof surface. The sri value reflects how well a roof rejects solar heat.

The selection of materials with a high sri can reduce indirect solar gain in buildings and reduce the urban heat island effect. 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. 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. Even if not required by energy codes cool asphalt roofing shingles may lower the cooling load on a home in hot climates.

There are 3 main figures to understand when choosing a color. Timberline hd reflector series plus shingles are rated by. Recycled content of berridge metal.