NFRC Certified U-Factor Window Ratings

The lower the U-Factor the higher the efficiency

[Page shows a double bar graph of NFRC ratings for Tri-State Window Factory compared to its competitors.]

Casement Windows NFRC Ratings

• Tri-State Window Factory: .17
• Alside: .28
• Andersen: .31
• Home Depot: .31
• Marvin: .3
• Alpha: .3
• Pella: .29
• Certainteed: .31
• Champion: .29
• Great Lakes: .29
• Harvey Ind: .24
• Ideal: .31
• Jeld-Wen: .24
• Lowes by Pella: .25
• Royal: .31
• Sears: .27
• Thermotech: .27
• US Window: .29

Double Hung Windows

• Tri-State Window Factory: .16
• Alside: .29
• Andersen: .31
• Home Depot: .31
• Marvin: .3
• Alpha: .29
• Pella: .27
• Certainteed: .37
• Champion: .29
• Great Lakes: .2
• Harvey Ind: .19
• Ideal: .31
• Jeld-Wen: .28
• Lowes by Pella: .34
• Royal: .33
• Sears: .23
• Thermotech: .3
• US Window: .31