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Cool Reflective Roof Coatings (CRRC)
Naturally, all roofs tend to turn dull/dark/black over a period of time due to various factors such as settling of dust, pollutant particle, bird shit and development of algae, fungi on the surface. In the case of asphalt shingles roofs, the temperatures can reach 160 degrees Fahrenheit (71 °C) on a 100-degree Fahrenheit (37 °C) day and the temperature is sustained at 160 degrees Fahrenheit for up to five hours if the shingles are exposed to direct sunlight. Here comes the degradation of roof material due to consistent UV exposer leads to weakening of the structure.
In CRRC, roof surfaces are coated with materials with high solar reflectance to emit solar radiation, as well as high infra-red emissivity to release absorbed heat.
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