Okna 500 – Vinyl Replacement Window
The Okna 500 is a vinyl replacement or new construction window that offers the performance and beauty only found in high-end windows at a price only found with mid-grade windows. The Okna 500 offers exceptional thermal and structural performance without compromising on beauty.
The Okna 500 window is perfect for home owners who are wanting the highest levels of energy efficiency and the most affordable price.
Contact us today to get a free, no pressure estimate on the best replacement windows in richmond!
These Features are Standard on all of our Okna 500 replacement windows.
Integrated Lift Rail
A heavy-gauge lift rail at the top and bottom of the window allows for easy operation .
Extruded Insulation slid into the frame insures the lowest thermal transfer through the frame and sashes.
A classically sculpted exterior frame improves the appearance of the replacement window
Vent latches allow the window to be opened a controlled amount for safety.
Powder coated, metal locks are strong and beautiful.
Inter-Lock & Seal
An Inter-Lock system and thick bulb seal work together to make this one of the most air-tight windows on the market.
Standard and Optional Choices to Customize Your Ideal Window
Thermal and structural performance ratings on windows tell you how your window will perform in your home.
|Glazing Option||U-Value||SHGC||VT||CR||Energy Star Minimum for VA||Energy Star Minimum|
|Double Pane Deluxe||0.25||0.3||0.55||62||0.3||17% Better|
|Triple Pane Deluxe||0.19||0.26||0.43||72||0.3||37% Better|
|Our Windows||Industry Minimum|
|Air Infiltration cfm/ft2||0.02||0.3||1500%||Better|
|Water Penetration mph||54||33||64%||Better|
|Structural Integrity mph||171||94||82%||Better|