What do the numbers mean?

Posted On Tuesday, Jun. 28th, 2011


When shopping for energy efficient vinyl replacement windows for your home, evaluating a window’s thermal performance can be very confusing. It is important to trust the experts, and look for the NFRC label on your vinyl replacement window. In this video, Seaway Manufacturing Engineer, Zach, explains what the numbers all mean and how you can use these numbers to find the perfect vinyl replacement window to suit your needs and budget.

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