High Albedo Roof Shingles

Reflective roofs are more energy efficient and cooler inside and out.

High albedo roof shingles.

Many homeowners find that the best solution for their roof is to install asphalt shingles designed to meet cool roof requirements. This roof has a high albedo and reflects about 63 of the energy from sunlight. The cool wall had a temperature reduction of 0 054 k 0 1 albedo whereas the cool roof had a reduction of 0 059 k 0 1 albedo. By preventing a majority of the heat from ever reaching the surface these roofs work to greatly reduce hvac cooling costs during the summer months.

Following the simulation results show that cool walls with an albedo rating of 0 9 showed very similar temperature reductions as that of high albedo cool roofs. A higher albedo means that a roof has a higher ability to reflect the sun s rays and thus reflects more sunlight than traditional roofs. In los angeles the average roof albedo is about 0 17. What advantages do cool roofs bring to small businesses.

Cool roofing systems also have high thermal emittance which is the ability to radiate absorbed heat back into the air and away from your business. While the albedo of 0 2 represents a typical roof with a dark surface default value in energyplus the albedo of 0 5 represents a roof top with a bright color after weatherization deterioration of albedo during the first years and is a conservative estimate of the albedo of high albedo sloped roofs. As one would expect albedo roofs are formulated with special high eminence materials that keep project a high level of thermal energy back into the atmosphere. A sample cool roof.