Dating

Oct 1 2017

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# Residential Windows, Doors and Skylights Current Specification Effective Date: January 1, 2015 The current criteria were finalized in January 2014. New performance levels (PDF, 238.86 KB) are effective as of January 1, 2016 for windows, doors, and skylights in all climate zones. Windows, doors and skylights must meet U-Factor and, where applicable, Solar Heat Gain Coefficient (SHGC) requirements based on climate zone. In addition, doors must meet U-Factor and, where applicable, SHGC requirements based on glazing level (amount of glass). Windows, doors and skylights originally qualified for the ENERGY STAR label in March, 1998. What should I look for …