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Subject:  Re: Lost jobs, looking at wrong thing? Date:  10/6/2012  8:38 AM
Author:  DrBob2 Number:  410491 of 507100

Solar panels are better.

But a lot more expensive than white paint. :-)

I would think in winter that places like Chicago might want black roofs to reduce their heating costs

Because the sun is at a low angle during the winter the effect is much less than in the summer.

Unfortunately, the mass effect of white roofs is not as effective as with an individual building because the reflected sunlight still warms the urban area, creating a larger, warmer urban heat island.

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