Energy Star: www.energystar.gov
Informative details about the U.S. government’s Energy Star program, with special sections on Energy Star windows and doors.
Efficient Windows Collaborative: www.efficientwindows.org
Useful information on how to choose energy-efficient windows. EWC members are committed to manufacturing and promoting energy-efficient windows. EWC provides unbiased information on the benefits of energy-efficient windows, descriptions of how they work, and recommendations for their selection and use. Superior is a charter member of the EWC.
National Fenestration Rating Council: www.nfrc.org
NFRC is a non-profit organization that administers the only uniform, independent rating and labeling system for the energy performance certification of windows, doors, skylights, and attachment products. Their goal is to provide fair, accurate, and reliable energy performance ratings
American Architectural Manufacturer’s Association: www.aamanet.org
Since 1936, AAMA has stood as a strong advocate for manufacturers and professionals in the window and door industry with respect to: product certification, standards development, education, legislative regulations, building and energy codes.
Cardinal Glass: www.cardinalcorp.com
Cardinal Glass Industries, Superior’s primary flat glass supplier, leads the industry in development of residential glass for windows and doors.