Installing a light-colored roof can create energy savings of between 2% and 50%, depending on the building's location and the area's climate, says Barbara Lippiatt, an economist at the National Institutes of Science and Technology. Red clay tile is a particularly good reflective roofing material for homes located in areas that are not overly sunny, she said. Red clay tile is also durable, lasting about 40 years, or twice as long as asphalt shingles.

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