The Okna 400 series double hung Deluxe replacement window with two panes of glass is very good choice for homeowners in Buffalo.
- 13% Better than Energy Star® minimum
- 600% 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
- Half fiberglass mesh screens are factory installed.
Energy Star | Comparison To | ||||||
Glazing Option | U-Value | SHGC | VT | CR | Minimum* | Energy Star Minimum | |
Dual Glazed | |||||||
Deluxe | 0.26 | 0.30 | 0.54 | 62 | 0.30 | 13% Better |
Industry | Comparison To | ||||||
Our Windows | Minimum | Industry Minimum | |||||
AAMA Rating (38 x 63) | R50 | R15 | |||||
Air Infiltration cfm/ft2 | 0.05 | 0.3 | 600% | Better | |||
Water Penetration mph | 56 | 33 | 70% | Better | |||
Structural Integrity mph | 171 | 94 | 82% | Better |