Energy Efficiency Goes Through the Roof

    Energy-efficient metal and asphalt roofing products will keep your attic cool and reduce the air conditioner's load. Find out more about these options, plus information about two more unusual energy-efficient roofing options.

    Reflecting on Metal

    Metal is the fastest-growing segment of the roofing market. Metal is light, sturdy, durable and can be very energy-efficient. Light-colored metal roofs reflect sunlight and keep attics cooler, reducing the need for summer air conditioning. Many companies make special coatings that further reduce heat absorption.

    Metal roofs can be installed over existing shingles, cutting the costs of installation by avoiding removal costs. Meanwhile, the extra layer of roofing can provide a tiny bit more insulation.

    A Cooler Shade of Asphalt

    Similarly, asphalt shingles can be coated with special cooling granules that reflect sunlight and keep heat out of the attic.

    Note that some roofing companies either don't know about these energy-efficient products or won't explain all your options. Find a company that can install specialized roofing products and provide the certification statement.

    Bring Your Roof to Life

    Homeowners are following some industrial builders and high-rise apartment building owners in planting vegetation on top of their houses. This type of living roof can help insulate your house and lower energy bills while reducing your home's carbon footprint, as the plants on your roof will absorb carbon dioxide.

    Of course, you don't want to just lay a bunch of heavy sod on your decking. Most living roofs are complex, professionally installed systems with specialized drainage layers and lightweight growing media in place of traditional soil. They also require more maintenance than traditional roofs. Visit the Green Roofs Association for more information, and consult a structural engineer to make sure your roof can handle the extra weight.

    Power Your Shingles

    How about making power with your roof instead of just saving power? Solar shingles are on the cutting edge of the booming renewable energy industry. Dow is rolling out a new generation of solar shingles this year, but the company has not yet announced pricing. It said homeowners can cover their entire roof with thin-film solar electric panels for about the same price as a standard mounted solar electric array. To be sure, they will not be cheap, but they are likely more cost-effective than replacing the roof and then adding solar panels.

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