July 19, 2009

White roofs will save more than $1 Trillion globally!

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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