Warm color? • Earth.com

Remember the black barns? Well, you don’t always want the interior of a barn to be too warm. So whitewash can help. Use it on the roof of a building, and the inside will be cooler by as much as 10°F than one with a dark roof. You can use it to protect from rusting and on trees to keep bugs away as well. Photo Credit: Grant Faint/Getty Images

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