Insul-Tec 500

OKNA Insul-Tec 500 is one of the most, if not the most, energy efficient double-pane window geared towards the residential window market. This window line offers all the benefits of a high-end vinyl window in the package that is more affordable to the Connecticut homeowner.
 

Features and Benefits of OKNA 500 Series Double-Hung Window:

  1. Fully welded frame and sash with exceptional thermal efficiency and outstanding strength
  2. Optional insulation-filled frame and sash for added energy efficiency
  3. Insulated extra or double-strength glass for increased strength and outside noise dampening
  4. HeatSeal Glass System offers thermal efficiency for fuel cost savings in any season
  5. Power Lift Balance System allows smooth window operation
  6. Full interlock with triple weather-stripping provides low air infiltration for increased comfort
  7. One-piece sloped sill helps eliminate clogged and frozen weep holes as well as reduce air infiltration and chimney effects
  8. HeatSeal Warm Edge Spacer System for excellent thermal efficiency and drastic reduction in the possibility of condensation on the inside of the window
  9. Available in Replacement and New Construction applications

Highlights of OKNA 500

 

Full 3¾” Depth Welded Mainframe with beveled colonial exterior features curves that are not only beautiful, but also allow for maximum weld surface resulting in strength and years of long lasting performance.
 
Optional foam-filled insulated extrusions add energy efficiency – Deluxe version only. (Insulation type may vary during the manufacturing process)
 
Standard slim profile sash lock with tamper-proof cam ensures a much smoother turn and increases the life cycle over traditional locks.
 
The Bulb Gasket Seal improves thermal performance, lowers drafts, and provides better acoustic insulation.
 
Night-vent latches allow both window sashes to remain partially open for ventilation.
 
Sill dam wall is mortised into the jamb adding strength and lowering the possibility of leaks that may occur at corner seals.
 
OKNA 500 Series offers fully integrated lift rail giving the window a more contemporary look.