Why are White Roofs Eco-Friendly?

​The lighter the color of your roof, the more eco-friendly your home is. Why? I will explain to you, here in BluHomes.

​Try to go out of your home at noon time wearing a black shirt. For sure, you will sweat right away. Now, try to go out wearing a white shirt, much cooler, right? This is the concept of Solar Reflectivity Index (SRI).
 
Solar Reflectivity Index is the measure on how much solar energy is reflected by the color of your roof from 0% to 100%. 0% SRI means that your roof does not reflect any solar energy, meaning it absorbs 100% of it. The lower the SRI, the hotter your home. On the other hand, 100% SRI means that your roof reflects 100% of solar energy and nothing is absorbed. The higher the SRI, the cooler your home.
 
If your roof is color brown, its SRI is 28%. This means that only 28% of solar energy is reflected and 72% is absorbed. That’s why it’s warmer! The SRI of a blue roof is 30% and of a gray roof is 37%.

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BluHomes are eco-friendly homes certified as green building developments. See the latest eco-friendly developments of BluHomes by clicking the button below:

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​The color of the roof here in BluHomes is reflective white with an SRI of 67%. This means that 67% of solar energy is reflected back to the atmosphere and only 33% is absorbed. This is why it is much cooler here in BluHomes. This is one of the principles of passive cooling.
 
Because the roof of BluHomes makes the home naturally cooler, use of air conditioners is lessened. This will significantly reduce your consumption of energy since more than 45% of your electric consumption comes from your air conditioners. Where does your electricity come from?
 
Most likely, your electricity may come from a coal-fired power plant that burns fossil fuels like coal, oil and natural gas. In this burning, it releases greenhouse gases to the atmosphere like carbon dioxide that is the main cause of global warming. In short, every time you use your air conditioner, you release greenhouse gases to the atmosphere.
 
Because the roof here in BluHomes is reflective white, your use of air conditioners is reduced, your electric consumption is reduced, and the greenhouse gases that you release to the atmosphere is lessened. That’s why it’s more eco-friendly!
 
I am Paolo Bellosillo of BluHomes, your home where nature smiles.