
Renewal by Andersen windows’ compliance with the Energy Star program signifies that they meet certain criteria for energy efficiency established by the Environmental Protection Agency and the Department of Energy. These criteria... Read more »

Performance metrics assigned to fenestration products manufactured by a specific company reflect their thermal efficiency. These measurements typically encompass U-factor, solar heat gain coefficient (SHGC), and visible transmittance (VT). For example, a... Read more »


