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Color and energy consumption

Color and Energy Consumption

In the southern US, summer is the time for soaring energy bills as air conditioners work all through the day and night to keep homes cool in the baking heat. Not many people are aware that changing the color of their roof and adding to the solar reflectance of the roof shingles could significantly cut electricity consumption for cooling their homes. White roofs absorb the least amount of heat and light colored roofs are a better option in hot climates. Coatings to improve heat reflectivity are applied on granules that make up the shingles and roofs made of such coated materials are called cool roofs. Cool roofs come in various shades to match the house sidings. Sidings in dark colors absorb the sun’s heat and push up cooling costs, so it pays to switch to lighter pastels.



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