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OKNA DOUBLE HUNG WINDOWS

Both sashes open and tilt in for easy cleaning making the double hung line the most convenient and durable at an affordable price.

Choose series below for more information.

DOUBLE HUNG: INSUL-TEC

The Insul-Tec combines excellent craftsmanship with a traditional look and feel. This Series offers all the benefits you come to expect from vinyl windows with a variety of options to make your home energy efficient while enhancing its beauty. Since all OKNA products are custom-made, you can be sure of a perfect fit, which translates to savings on time and labor during installation.

OKNA double hung
  • 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.
  • 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.
  • Optional Auto-Lock features an exclusive automatic locking system which is easy to engage.
  • Heavy gauge fully extruded handles on both sashes.
  • Fiberglass mesh half screens standard on all windows.
  • Optional locking screen provides an additional safety measure.*

WARRANTY

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

OVERVIEW

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 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 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.

*OKNA windows are available in many configurations including custom colors, grid patterns and profiles. For more information, please contact us at (770) 928-9922.

DOUBLE HUNG: ECO-PRO

The Eco-Pro combines superb craftsmanship with a classic feel. This Series offers many glass and hardware options to seamlessly blend with any interior design while providing superior energy efficiency. Since all OKNA products are custom-made, you can be sure of a perfect fit every time.

OKNA double hung
  • Maintenance free rigid multi-chamber vinyl profile.
  • Full 3 1/4" 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.
  • 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.
  • A variety of hardware options fits harmoniously into any décor.
  • Fiberglass mesh half screens standard on all windows.
  • Optional locking screen provides an additional safety measure.*

WARRANTY

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

OVERVIEW

Full 3 1/4" 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.

The sill dam wall is mortised into the jamb adding strength and lowering the possibility of leaks that may occur at corner seals.

Eco-Pro double hung features beautifully designed metal handle(s) on top sash and lift rail on bottom sash.

Push button spring-loaded vent latches allow both window sashes to remain partially open for ventilation.

Additional high density composite reinforcement (a) inside the upper part of the sash make our windows structurally stronger than others available on the market.

One piece sloped sill with double dam leg helps eliminate clogged and frozen weep holes as well as makes windows structurally stronger; reducing air infiltration and chimney effect drafts.

*OKNA windows are available in many configurations including custom colors, grid patterns and profiles. For more information, please contact us at (770) 928-9922.

DOUBLE HUNG: ENVIRO-STAR

The OKNA Enviro-Star is our high-end Replacement Window. The Enviro-Star combines superb craftsmanship with an old world look and feel. This Series offers a myriad of glass and structural options to seamlessly blend with any décor while providing the utmost in energy efficiency. Since all OKNA products are custom-made, you can be sure of a perfect fit every time.

OKNA double hung
  • Maintenance free rigid multi-chamber vinyl profile.
  • Full 3 1/4" 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.
  • 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.
  • A variety of hardware options fits harmoniously into any décor.
  • Fiberglass mesh half screens standard on all windows.
  • Optional locking screen provides an additional safety measure.*

WARRANTY

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

OVERVIEW

The elegant, beveled profile of our 800 Series will enhance the beauty of your home's exterior by giving it the traditional look and feel of wood windows with the performance and ease of maintenance you can only get with vinyl windows. The 800 Series can also be painted to match any exterior.

The classically refined line of the 800 Series brings to mind a traditional wood window without most of the maintenance responsibilities. A streamlined design, packed with a variety of features makes this window a sophisticated choice.

The 800 Series offers hardware options reminiscent of classic wood windows. It is the only vinyl window we manufacture without an integrated lift rail. The double hung features a handle style based on traditional wood windows.

Recessed vent and tilt latches give the window a streamlined appearance as well as making clean-up a breeze. The reveal of the top sash at the meeting rails is a distinguishing mark of the 800 Series, drawing inspiration from classic wood windows.

We constructed the 800 Series to authentically represent a traditional wood window. The smallest details, such as the rounded beveled edges of the glazing bead, are a nod to the classic.

A one piece sloped sill allows for proper water drainage without leaks.

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 that may occur at corner seals.

The Bulb Gasket Seal improves thermal performance, lowers drafts and provides better acoustic insulation. Dual weather-stripping significantly decreases drafts and air infiltration, and balance covers hide the balance mechanism lending a pleasant streamlined appearance to the window.

Additional high density composite reinforcement (shown in blue) inside the upper part of the sash make our windows structurally stronger than others available on the market.

Magnetic Seals (shown in light blue), similar to those used in refrigerators, dramatically reduce drafts and greatly improve the thermal performance of our windows.

*OKNA windows are available in many configurations including custom colors, grid patterns and profiles. For more information, please contact us at (770) 928-9922.

Understanding Double-Hung Windows

Explore the world of double-hung windows and discover how they can enhance both the functionality and aesthetics of your home. In this section, we delve into the features, benefits, and versatility of double-hung windows, providing you with all the information you need to make an informed decision for your home improvement needs.

  • What Defines a Double-Hung Window?

    A double-hung window consists of two movable sashes that can slide vertically. This design allows for exceptional airflow and ventilation, making it ideal for various residential settings, especially multi-story homes.
  • Double-Hung vs. Single-Hung Windows: What's the Difference?

    Unlike single-hung windows, which have a fixed upper sash and a movable lower sash, double-hung windows allow both the upper and lower sashes to move. This flexibility offers enhanced ventilation options and simplifies cleaning, especially for windows situated on higher floors.
  • Advantages of Double-Hung Windows in Cleaning and Maintenance

    One of the key benefits of double-hung windows is their ease of maintenance. Many models feature tiltable sashes, enabling you to clean both the interior and exterior surfaces from inside your home—a convenient feature for upper-story windows.
  • How Do Double-Hung Windows Enhance Home Ventilation?

    Double-hung windows provide versatile ventilation options. You can choose to open the top, bottom, or both sashes simultaneously, allowing for adjustable and effective air circulation throughout your home.
  • Energy Efficiency of Double-Hung Windows

    Double-hung windows are crafted with energy efficiency in mind. Using advanced framing materials such as multi-chambered vinyl or fiberglass, these windows help maintain indoor temperatures, contributing to a comfortable home environment year-round. While single-hung windows might offer marginal efficiency benefits, double-hung windows deliver comparable performance with quality construction.
  • Installation Considerations for Double-Hung Windows

    Suitable for new constructions and renovations alike, double-hung windows offer flexibility in installation. Proper installation is crucial to maximize their performance, particularly ensuring a secure seal to safeguard against environmental elements.

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