July 19, 2009

White roofs will save more than $1 Trillion globally!

By
Jim Harris
Magazine Article

Black is the most effective colour for trapping the sun’s heat, while white is the best at repelling it. Black pavement accounts for 40% of urban surfaces while roofs — typically covered with black or dark shingles –account for 20% to 25%.

For the full column see http://bit.ly/5MqZXt

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