26 Jul '11, 4pm

With white roofs back in the news, @lloydalter revisits some of the bad arguments against the concept:

With white roofs back in the news, @lloydalter revisits some of the bad arguments against the concept:

White roofs in winter in Winnepeg After posting about the benefits of white roofs, (as Mike did here on TreeHugger ), Andrew Sullivan published a couple of letters from readers questioning their benefits. I had a look at this issue two years ago, and wrote that Arguments Against White Roofs in Northern Cities are Specious . But one commenter hit a new level of speciousness with his argument: Winter is when you actually want a black roof, in order to suck up the sun's radiant heat and melt as much of the snow as possible. Snow on the roof certainly looks picturesque, but it frequently leads to all sorts of problems, such as ice dams that force water under your shingles, through your roof and into your house. First of all, the white roof idea is for flat, unventilated roofs. Almost all shingled roofs are over uninsulated, vented attics and the colour of the roof is not going...

Full article: http://www.treehugger.com/files/2011/07/arguments-against...

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