High Albedo Roofing Materials

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High albedo roofing materials. A sample cool roof. On a sunny day a roof that strongly reflects sunlight can stay much cooler than a roof that absorbs sunlight. On clear sunny days when the solar noon surface temperatures of conventional roofing materials were about 40 degrees c 72 degrees f warmer than air the surface temperature of high albedo coatings were only about 5 degrees c warmer than air. Being a roof cooling and insulation paint it will act as a protective coating and best summer cool paint.

In los angeles the average roof albedo is about 0 17. Its solar reflective properties make it one of the most suitable solar. Coolroof heat reflective paint has been designed to give relief from roof heat as it is a high albedo paint having high sri value which makes it most suitable for roof insulation. 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.

A sample. This roof has a high albedo and reflects about 63 of the energy from sunlight. This high sri paint acts as heat reducing paint which can be applied as cool roof coating having single objective of roof insulation. 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.

In the morning and in the late afternoon the high albedo materials were as cool as the air itself.