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Double Hung - DH 5500
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![]() Optional foam-filled
insulated extrusions add energy efficiency - Delux version only.
(Insulation type may vary during the manufacturing process)
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![]() Standard Slim Profile Sash
lock with tamper-proof cam ensures a much smoother turn, and
increases the life cycle over traditional locks.
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![]() Push Button Spring-Loaded
Vent Latches allow both window sashes to remain partially open for
ventilation.
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![]() 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.
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![]() Euro-White |
![]() Almond |
![]() Cocoa |
| 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) |
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| 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 | ||||||
| OKNA 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. | |||||||
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All result
numbers are based on tested window sample by NFRC & AAMA
testing window guidelines. Use for comparison |
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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 grilles for your OKNA Windows & Doors can highlight the architectural style that speaks to you. 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. GBG grilles on two tone windows are available with matching interior and exterior colors. |
Most Common Grid Patterns![]() |
| Colonial | Praire | Diamond |
OKNA Windows offers factory-installed half screens with heavy-duty handles. Screens are removable from the inside for convenient storage. Optional locking screens provide an additional safety measure.*
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