For more information on our test reports from independent labs please do not hesitate to contact us marketing@venttra.com .
For additional information on energy efficiency and ratings plese visit www.nfrc.org which is the nNational Fenestration Rating Council which validates after testing simulations the performance of the window in different weather conditions .
For structural testing and ratings please visit www.aamanet.org which is the American Architectural Manufacturers Association in charge of rating the structural strength of windows and its air and water infiltration.
This associations have certified our products, we encurage you to visit their sites and learn more about their role in the window industry.
