The ESP (Energy Saver Package) on the Okna triple pane 400 Precision Weld replacement picture window provide superior performance and total value. If you demand performance and value this is a great option. Spending money on replacement windows is a big investment let the professionals help you decide on an educated decision.
- 33% Better than Energy Star® minimum
- 3000% Better AI protection
- A great choice to keep the cold out with excellent thermal efficiency
- Welded sash & frame for overall durability
- Custom made for your home
- Available in custom exterior colors as well as four standard colors
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Energy Star |
Comparison To |
Glazing Option |
U-Value |
SHGC |
VT |
CR |
Minimum* |
Energy Star Minimum |
Triple Glazed |
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With ESP |
0.20 |
0.28 |
0.46 |
69 |
0.30 |
33% Better |
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Industry |
Comparison To |
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Our Windows |
Minimum |
Industry Minimum |
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AAMA Rating |
R 75 |
R 15 |
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Air Infiltration cfm/ft2 |
0.01 |
0.3 |
3000% |
Better |
Water Penetration mph |
66 |
33 |
100% |
Better |
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Structural Integrity mph |
210 |
94 |
123% |
Better |