Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Solar-control films reflect or absorb solar energy before it reaches interior spaces. They save energy by reducing cooling demand.
Green Proving Ground (GPG) evaluated a spectrally-selective film at the Goodfellow Federal Center in St. Louis, Missouri. We found up to 29% heating and cooling energy savings in hot climates. View full-size infographic [PDF - 233 KB].
Reference above to any specific commercial product, process or service does not constitute or imply its endorsement, recommendation or favoring by the United States Government or any agency thereof.