In newer homes, energy-efficient building practices are used to avoid drafts, but these air tight homes can result in uncomfortable air quality and ventilation.

See our Air Quality section for more information.

In this video: An industry expert discusses green technologies that improve air quality in new construction.

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Building an energy-smart house

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Hear from real homeowners and builders who made energy efficiency a priority.

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Geodesic domes

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A geodesic design uses interconnected triangles to create a strong, environmentally friendly structure.

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Historic preservation

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A preservation expert shares how to restore an older home economically and energy efficiently.

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Insulated concrete forms

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An insulated concrete form (ICF) system eliminates the cold drafts typical of wood-frame construction.

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Trombe wall

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Using the sun's stored energy to heat your home reduces your conventional energy consumption.

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Habitat for Humanity

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Habitat for Humanity is an organization that provides simple, sturdy homes. Learn how energy efficiency is a key factor in building these homes.

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Turning a barn into an energy-smart home

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A century-old barn gets the ultimate makeover - with lots of energy-smart technology.

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Roof and attic

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Your roof and attic play the most crucial role in your home's energy efficiency system, reducing your energy costs during the winter and summer.

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Decoding building requirements

house blueprints

Learn about some of the changes for new homes built today. An expert highlights some of the things to consider when building a new home.

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