Lots of Alternatives for White Roofs

MortgageNewsDaily.com — Sat, 05 Sep 2009 14:36:41 +0000

The surface of a dark roof can reach 180° on a sunny day. A roof that hot does a lot to the temperature inside the structure, a situation that would be welcome in Minnesota in January but is more likely to occur in Texas in August. The heat is absorbed into the structure where, even with its tendency to rise, will still elevate the inside temperature increasing the need for and cost of air conditioning. That superheated roof will also send some of the heat back out into the surrounding air, creating what are called “heat islands” in densely populated areas. While absorbing the suns heat, a dark surface also absorbs its rays, lowering the earth’s overall solar reflectance (called albedo) and possibly promoting climate change. For those reasons there is a growing movement...(read more)

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Lots of Alternatives for White Roofs