marvin. the performance education handbook available online and in print includes design pressure dp ratings energy star ratings glass performance and nfrc certification and labeling for the companys entire product line among other performance topics. the site also lists products that qualify for energy tax credits. pictured aluminumclad wood windows. 800.346.3363. www.marvin.com.

Product Review: Windows

Spot-specing windows based on their orientation--rather than installing a houseful of the same model--can have a significant impact on...


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