"We just wanted to tell you how pleased we are with the patio door that was installed and the Gutter Caps that were installed several weeks ago. The patio door looks great and we love the Gutter ... » more
- Harlan and Sandy Henzen of Davenport, Iowa


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NFRC

National Fenestration Rating Council. An industry association which sets the standards for testing, rating, and labeling doors and windows with heat transmission and energy information.

Not quite sure what the proper home improvement terms are? Let us help. We have put together a glossory for you to learn a little bit more about Home Improvement Glossary and Terms

For furthur reading please see our Learn the Basics Homepage.