The 500 Series double pane Deluxe Insul-Tec picture window is highly recommended by homeowners and contractors for is balance of price, performance and energy efficiency. If there is one window to seriously consider making the investment in take a close look at this one.
  • 20% Better than Energy Star┬« minimum
  • 3000% Better AI protection
  • Full 3┬╝" Depth Welded Mainframe 
  • Excellent craftsmanship
  • Vinyl windows are strong and durable 
  • Foam filled frame for greater performance
  • Beautiful, and strong for years of long lasting maintenance free performance.
  • Heatseal┬« warm edge spacer system drastically reduces the possibility of condensation on the inside of the window.
  • Available in Replacement and New Construction applications.
        Energy Star                                                                                                                                                Comparison To
Glazing Option U-Value SHGC VT CR Minimum* Energy Star Minimum
Dual Glazed              
Deluxe 0.24 0.31 0.56 64 0.30 20% Better
    Industry Comparison To  
  OKNA Windows Minimum Industry Minimum  
AAMA Rating   R75 R15      
Air Infiltration cfm/ft2 <0.01 0.3 3000% Better
Water Penetration mph     66 33   100% Better  
Structural Integrity mph   210 94   123% Better