Insul-tec
  • Fusion welded beveled frame & sash for strength and durability.
  • Heatseal® warm edge spacer system for excellent thermal efficiency and drastic reduction in the possibility of condensation on the inside of the window.
  • Full integral interlock with double weather-stripping.
  • Heavy gauge fully extruded handle on bottom sash.
  • Fiberglass mesh half screens standard on all windows.
  • Available in Replacement and New Construction applications.

Warranty

All of our windows and doors are manufactured from high quality materials and are backed by a Transferable Lifetime Limited Warranty.

 

Overview

Corner window

Full 3¼" Depth Welded Mainframe with beveled colonial exterior features curves that are not only beautiful, but also allow for maximum weld surface resulting in superior strength and years of long lasting performance. An integral nailing flange makes installation easy and the optional J-Channel aids in siding finishes.

Corner cut

Optional foam-filled insulated extrusions add energy efficiency. (Insulation type may vary during the manufacturing process)

sill dam mortised

The SH 3500 offers a fully integrated lift rail giving the window a neat, clean appearance as well as additional strength and rigidity. The sill dam wall is mortised into the jamb adding strength and lowering the possibility of leaks that may occur at corner seals.

seal

Recessed tilt latches on the SH 3500 give the window a streamlined appearance as well as holding the sash securely in place. The raised lever allows for tilt-in with minimal effort

505 lock

The slim sash lock and tamper-proof keeper of the SH 3500 not only add beauty to your window but also ensure smooth operation.

Upper sash

The SH 3500 is a Single Hung window where only the bottom sash is operational. The only screen option for this window is a stationary half screen.

Interior Options

We offer three interior 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.

 
Euro White
Euro White
Almond
Almond
Cocoa
Cocoa
Dark Oak
Euro White

Exterior Options

OKNA Windows offers six exterior stock color selections in addition to the standard Euro-White option to give your house a distinct look and enhance its Curb appeal. You can also select 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.

 
Euro White
Euro White
Almond
Almond
Sandstone
Sandstone
Cocoa
Cocoa
Terra Brown
Terra Brown
Basic Brown
Basic Brown
Bronze
Bronze
Custom Colors
Custom Colors
Almond
Almond

Hardware

To create a style and finish that reflects your unique taste our hardware is designed to harmonize with our different window styles and decor ideas.

Euro White
Euro White
(Standard)
Almond
Almond
(Optional)
Cocoa
Cocoa
(Optional)

Grid Patterns

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

Colonial Colonial
Praire Praire
Diamond Diamond

Grid Profiles

GBG grilles 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.

Euro White 5/8'' Flat Grid between glass
Contour Grid between glass 11/16'' Contour Grid between glass

OKNA Screens

Okna Windows offers factory-installed half screen with heavy-duty handle. Screens are removable from the inside for convenient storage. We also offer ThruVision® Screens improving view thru the window protecting interior from insects and allowing perfect ventilation.

ThruVision® Screen | Regular Screen

Our company offers factory-installed half screen with heavy-duty handle. Screens are removable from the inside for convenient storage.

ThruVision® Screen | Regular Screen

Optional locking screen provides an additional safety measure.*

ThruVision Plus®

ThruVision Plus® is our fiberglass improved visibility screen. This product does for windows and doors what high-definition technology has done for television viewing: it improves the view by making it sharper and more vivid. ThruVison PLUS® Standard with All OKNA Windows.

ThruVision® Screen | Regular Screen
ThruVision® Screen | Regular Screen

(* Insect screen cannot support significant amounts of weight. Please keep small children and pets away from windows when only insect screens are in use.)

Installation

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