As a proud ENERGY STAR partner, Weathershield ensures our products are rated, certified and labeled for U-Value and Solar Heat Gain by the National Fenestration Rating Council (NFRC). <br /> <br />According to the U.S. Department of Energy, a home's windows consume up to 3.8 quadrillion BTUs of energy annually in the form of heating and air conditioning expenses. At a cost of more than $30 billion to homeowners, it pays to compare glazing options when choosing windows for your home. <br /> <br />The estimated savings for a typical home, from replacing double-paned wood windows with Zo-e-shield windows, are significant in all regions of the country and can range from 15% to 30% a year. <br /> <br /> <br /> <br />The ENERGY STAR label, first introduced by the Environmental Protection Agency in 1992, has grown to identify efficient products in more than 35 categories. <br /> <br />The ENERGY STAR criteria for residential windows and doors are tailored to four Climate Zones. A product's energy efficiency for a given climate is based on its impact on heat gain and loss in cold weather and heat gain in warm weather. <br /> <br />Weathershield Reviews <br />Weather shield Reviews
