Ply Gem has 30 designated window products recognized as the Most Efficient of ENERGY STAR 2013. The ENERGY STAR Most Efficient mark is an extension of the ENERGY STAR brand and is designed to recognize and advance the most efficient products among those that qualify for ENERGY STAR. Products that are awarded the mark prevent greenhouse gases by meeting rigorous energy-efficiency performance levels set by the U.S. Environmental Protection Agency.
Recognized products include Ply Gem Windows for new construction and replacement applications, with options from the 1500 Vinyl Collection, Premium 1000, Premium Replacement, Pro, Pro Replacement, Contractor 2000 and ecoSmart series. Select options are available in vertical slider (single and double hung), horizontal slider, fixed/picture and casement operating styles.