2013 Most Efficient List Out
The Energy Star program has released its list of windows that have qualified for the Most Efficient 2013 designation. More than 30 manufacturers have product lines meeting the criteria for the new program, designed to recognize the highest-performing residential windows available on the market.
Criteria for the Most Efficient program are significantly more stringent than Energy Star. In addition to requiring a U-factor of 0.20 or less, the new program requires that windows be certified under the North American Fenestration Standard/Specification (NAFS) to document air leakage, water leakage, and structural performance. They must have a NAFS Performance Grade (PG) of 15 or higher.
Companies Listed on Most Efficient Website
|A Window Inc.||Alside Inc.||American Exteriors LLC|
|Associated Materials Inc.||Capitol Glass/Northerm Windows||Champion Window|
|Envirogreen Windows & Doors Inc.||Grupo Eurowindows Mexico S.A. De C.V.||Harvey Industries Inc.|
|Ideal Window Manufacturing Inc.||Interstate Window & Door Co.||Jeld-Wen Inc.|
|Joyce Manufacturing Co.||Kolbe Windows & Doors||Lincoln Wood Products/Timeline Vinyl Products Inc.|
|Marvin Windows & Doors||Mathews Brothers Co.||Mercer Industries Inc.|
|Mercury-Excelum Inc.||MI Windows & Doors||National Vinyl LLC|
|NT Window Inc.||Pella Corp.||Polaris Technologies|
|Rosati Windows||Seven D Industries LP||Soft-Lite LLC|
|Sunrise Windows Ltd.||THV Compozit Windows & Doors||Value Windows & Doors Inc.|
|Vista Window Co., LLC||Vytex Corp.|