 You might think that white roofs are plain and boring, but it is one of the best ways to make your home energy-efficient and eco-friendly. Each color in the rainbow has a specific reaction to heat. Basically, darker colors absorb heat more than light colors. Solar Reflectivity is what green building practitioners call this characteristic. Solar Reflectivity is a numerical value, expressed as a percentage, that indicates how much solar heat is reflected back to the atmosphere. Here are the average Solar Reflectivity of typical roof colors:
Blue & Green – 30% Brown – 34% Grey – 37% Red – 40% White – 70% If your roof is color brown, only 34% of the solar heat is reflected back to the atmosphere and 66% is absorbed by your roof, transmitting the heat into your home. If your roof is color white, 70% is reflected back and only 30% of the heat is absorbed and transmitted into your home. In simple words, white roofs can make your home cooler by reflecting the heat from direct sunlight. Not only will it make you feel comfortable, it can also reduce your use of air-conditioners and lessen your electric bills. Further down the line, the reduction of electricity can also reduce the carbon dioxide being emitted into the atmosphere. This is why the roof at BluHomes is color white – to make the home eco-friendly. More articles about eco-friendly homes:
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