09 Mar '12, 11pm

In an Urban Roof Contest, White Trumps Black

Gaffin et al A comparison of the surface temperatures of a white roof at MoMa P.S. 1 in Queens with those of a black roof last June to August. The roof was coated with a white acrylic paint. One hundred seventy degrees Fahrenheit is the approximate temperature to which chicken should be cooked. It’s also the temperature that was recorded on some asphalt roofs in New York City last July during a heat wave that set a record for electricity use. Because they absorb sunlight, dark roofs, dark buildings and dark streets and sidewalks make cities especially sweaty, a phenomenon known as the urban heat island effect. New York City can often be up to 5 degrees hotter than surrounding areas. So one of the simplest ways to cool cities, lower electricity usage and reduce the city’s carbon footprint is to make rooftops white, ensuring that they reflect heat rather than absorb it. In a...

Full article: http://green.blogs.nytimes.com/2012/03/09/in-an-urban-roo...

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Green Blog: In an Urban Roof Contest, White Tru...

green.blogs.nytimes.com 09 Mar '12, 11pm

Gaffin et al A comparison of the surface temperatures of a white roof at MoMa P.S. 1 in Queens with those of a black roof ...

White Trumps Black in Urban Cool Contest

green.blogs.nytimes.com 10 Mar '12, 6pm

Gaffin et al A comparison of the surface temperatures of a white roof at MoMa P.S. 1 in Queens with those of a black roof ...

Grey or Black?

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New York City roof study shows drastic cooling ...

e360.yale.edu 08 Mar '12, 4pm

08 Mar 2012: New York Roof Study Shows Drastic Cooling with White Surfaces A New York City roof covered in a white synthet...

New York Roof Study Shows Drastic Cooling with White Surfaces

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greenbuildingelements.com 08 Mar '12, 5pm

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Corporate Responsibility and Sustainability News: White Roofs reduce urban heat island effect

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enn.com 11 Mar '12, 10pm

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white on white

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