If you are looking to build or buy a new home in Arizona, Florida, Nevada, New Mexico, Texas, and parts of California, the color of your roof may make a significant difference in your utility bill. As anyone who has worn black clothing during midday in the Phoenix sun knows… your black clothing is absorbing the heat, causing you to be much warmer than you would be if you were to wear light colored clothes. The same principle applies to the color of your roof.
Studies provided by Lawrence Berkeley National Laboratory and Florida Solar Energy Center have shown that by having a “cool roof” installed, will result in up to 40 percent energy savings—a savings of roughly $750 million each year, nationwide. A cool roof—light colored roof that aids in repelling sunlight—can reduce roof temperatures by about 50 – 60 degrees Fahrenheit. Even as much as 80 degrees, as shown in a BAS study where a black roof reached temperatures of 190 degrees and an identical white roof reached temperatures of only 110 degrees.
See more:
Roof tiles change color based on the temperature, your house’s mood
Color and Energy Matters
How to use the Cool Roofing Materials Database
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Its a nice article. Very helpful for all those who searching for to build a greener home. Thanks.
A white roof will defintely lower your cooling costs. We live in Florida and just re-roofed our home using a special coating (expands & contracts) — it’s white. We slowly redid the roof on weekends — its original roof was tar and pebbles. As soon as we had 1/2 of the roof done, we noticed our air conditioning was not coming on as often.
Thanks for sharing. Most homeowners don’t really think about this when they choose a roof.
If you live in the South you already know about how hot a car’s interior can get on a real hot day. If you think about it, your shingles are in the direct sunlight most of the time. Using a lighter colored roof just seems to make more sense to reduce the cooling costs.
.-= Trent @ Raleigh Roofing´s last blog ..Tree Conflict With a Neighbor =-.
Being in the UK where we don’t get much hot weather I wasn’t really aware how different colour roofs affected heating bills etc. Very informative.
Thanks for this informative post! design, quality and color should matter.