Bet you didn't know the Vinyltek casement window scored the highest marks when tested by NFRC labs in Washington DC! That's a great accomplishment for any window, considering we tested against 22,000 other windows, yep 22,000; not 2200, not 220. The highest test results in 22,000 lab tests and simulations. Another reason Vinyltek's windows are [...]The post NFRC Testing appeared first on Vinyl Windows & Doors - Vinyltek.
