discover why the okna insultec is the number one choice for DOUBLE-HUNG windows

The Okna series 500 also called the Insul-Tech is one of Okna windows premium window products.  Some of the feature that make the Okna series 500 so  good  are it's  fusion welded main frame and unique exterior beveled  profiles making the Insul-tech one of the most attractive windows on the market today. You will love the look and the warmth that this product will bring to your home, as well as the energy savings and easy maintenance.  This is why Suburban Windows carries the Okna series 500 as one of it's quality windows products.

Includes our high performance Low E and Argon insulated glass and  Foam Filled Insulated Frames  and Sashes.
  • Welded construction and beveled exterior frame..
  • 100% premium virgin vinyl.
  • Clima-Guard Glass with Argon Gas for a low  .26 U Value and our warn edge  Heat Seal Spacer system.
  • Triple weather stripping are added to all the sash  for superior air infiltration  ratings.  
  • Low air infiltration ratings of  0.02,  Out performing windows like the Harvey, Alside, Anderson, Pella, Champion or Castle Windows in thermal efficiency air infiltration and structural load.
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Okna Series 500 Ratings and Features

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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.
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(Insulation type may vary during the manufacturing process)



Standard Sash lock with tamper-proof cam ensures a much smoother turn, and increases the life cycle over traditional locks.



Optional Auto-Lock features an exclusive automatic locking system which is easy to engage.




The Bulb Gasket Seal improves thermal performance, lowers drafts, and provides better acoustic insulation.




Push Button Spring-Loaded Vent Latches allow both window sashes to remain partially open for ventilation.



The sill dam wall is mortised into the jamb adding strength and lowering the possibility of leaks.



The 500 Series offers a fully integrated lift rail giving the window a nice, contemporary look.

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Our company offers three exterior color selections in addition to the standard Euro-White option to give your home a distinct look and enhance its curb appeal. You can also special order custom exterior colors from a virtually unlimited selection of paints. Our paints are environmentally safe and durable, giving your exterior a vibrant and long-lasting color finish.
Interior Options
Standard Euro-White finish and
Standard Euro-White Lock
Euro-White
Optional Almond frame
and Optional Almond lock
Almond
Optional Cocoa frame
and Optional Cocoa lock
Cocoa
Bronze
Exterior Colors
All colors except Euro-White are available at an additional charge.
Optional Auto-Locks

OKNA Windows Auto-Lock features an exclusive automatic locking system which is easy to engage.
Euro-White
Almond
Cocoa
All colors except Euro-White are available at an additional charge. Printed colors may not match the product's actual color. Please visit a local dealer to view actual color samples.

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          Energy Star Comparison To
Glazing Option U-Value SHGC VT CR Minimum* Energy Star Minimum
Dual Glazed            
Clear Glass 0.46 0.61 0.63 45 0.30 Does not qualify
With ESP 0.28 0.30 0.55 62 0.30 7% Better
Deluxe 0.25 0.30 0.55 62 0.30 17% Better
Triple Glazed            
With ESP 0.21 0.26 0.43 70 0.30 30% Better
Deluxe 0.19 0.26 0.43 72 0.30 37% Better
Deluxe/krypton Gas 0.15 0.26 0.43 76 0.30 50% Better
U-Value, SHGC, VT, CR values may slightly change for windows made with GBG (Grids Between Glass)
SHGC - Solar Heat Gain Coefficient  
VT - Visible Transmittance  
CR - Condensation Resistance  
ESP - Energy Saving Package  
CIT - Currently In Test  
 * Northern Climate Zone


    Industry Comparison To
  Our Windows Minimum Industry Minimum
       
AAMA Rating R 50 R 15  
Air Infiltration cfm/ft2 0.02 0.3 1500% Better
Water Penetration mph 54 33 64% Better
Structural Integrity mph 171 94 82% Better


Water Penetration mph - Specifies wind load pressure in mph a window can withstand  without leaking, under rain equivalent to 8" per hour.  
Structural Integrity mph - Wind load in mph a window can withstand before breaking.

All result numbers are based on tested window sample by NFRC & AAMA testing window guidelines. Use for comparison purposes only. Actual values may vary depending on installation, size of the window, and other conditions.

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5/8" Flat Grid
between glass
11/16" Contour Grid
between glass

Are you looking for a stunning design detail to instantly set your home apart both inside and out? A choice of decorative grids for your windows & doors can highlight the architectural style that speaks to you.

Grids between glass (GBG) consist of aluminum bars sealed in the insulating airspace between the two panes of glass. Because the interior and exterior glass surfaces are not affected, cleaning your windows is a much easier task. GBG grids on two tone windows are available with matching interior and exterior colors.

Most Common Grid Patterns
Prairie
    Prairie
Diamond

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Our company offers factory-installed half screen with heavy-duty handle.
Screens are removable from the inside for convenient storage.
Optional locking screen provides an additional safety measure.*
 
(* Insect screen cannot support significant amounts of weight. Please keep small children and pets away from windows when only insect screens are in use.)  
 
 
Our company offers ThruVision® Screen standard on the 500 Series to improve the view through the window while protecting the interior from insects and allowing proper ventilation.


ThruVision® Screen           

(standard on all OKNA Windows)
                Competitor's Screen

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