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Buying energy-efficient fenestration products is easy. Windows, doors and skylights are among the growing list of products that can qualify for the ENERGY STAR international symbol for energy efficiency.

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As the information source for the fenestration industry, Window and Door serves over 13,000 manufacturers, distributors and dealers of windows, doors, skylights and other fenestration and millwork products.

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The National Fenestration Rating Council (NFRC) provides manufacturers, builders, architects, utilities, and consumers with energy performance information on windows, doors, skylights, and other fenestration products.