108 Field Techniques

16 percent of all electricity generated in this country is used to air condition buildings—about $40 billion a year (www.energystar.gov). Building owners, homeowners and architects have about 40 billion reasons to explore alternative, cooler roofing options to minimize energy costs. Certainly this can be accomplished using painted metal. Here are some facts about the benefits of an energy-efficient metal roof:

• Reduces the amount of heat transfer into the building

• Keeps roof surface temperature down

• Reflects sun’s rays rather than absorbs them

• Cools very quickly

• Composed of recycled materials

• Has a flat surface

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