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Old 07-26-10, 02:47 PM   #1
Daox
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Default Painted white roof drops house temps 8-10 degrees

I just saw this over on builditsolar. This guy got an amazing difference from painting his roof white. I'd never even be hot in my house if I did this!

Experiment With White Roof Cooling Effect

Quote:
House temperatures with regular roof and AC OFF......... 87-92F.
WHITE ROOF (and ac OFF)........ 79-82F.

ATTIC temperatures with regular roof.................... 120 - 140F
WHITE roof ................... 90 - 97F .


Attic temperatures were reduced by about 30 to 40 degrees.... and house temperatures were reduced about 8 or 10 degrees.

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