NXT10_BuildingEfficiencies_final.pdf There are many green things you can do with a giant commercial building's roof. From painting it whit...There are many green things you can do with a giant commercial building's roof. From painting it white to reflect the sun's rays, to building a green roof, to installing a solar array to generate electricity. Lithographix, a printing company, went for this last option and now has the first commercial solar array in Hawthorne, California.
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