ENERGY STAR is a program created by the U.S. Department of Energy and the U.S. Environmental Protection Agency to help people make smart, long-term choices for their home.
The program rates everything from refrigerators to computer monitors, fans to windows and doors. The ENERGY STAR rating is only granted to products that reduce energy use. Integrity windows and doors not only meet the standards necessary to qualify for ENERGY STAR rating, they exceed it.