The Fairfield 80 Series  combines proven vinyl engineering with timeless design. Built with multi-chambered, fusion-welded frames and ClimaTech® Low-E insulated glass, it delivers outstanding thermal efficiency, sound control, and everyday durability. Each window and patio door is crafted to provide energy savings, low maintenance, and long-term performance — making it an ideal solution for residential renovations or new construction.
With clean sightlines, reinforced meeting rails, and precision-sealed corners, the Fairfield 80 Series ensures year-round comfort, reduced energy costs, and quiet interiors — all backed by Panora’s Lifetime Limited Warranty for complete peace of mind.
Frame Construction: Multi-chambered, fusion-welded vinyl for superior rigidity and insulation
Glass System: ClimaTech® Low-E insulated glass with argon gas fill
Spacer System: Intercept® Warm-Edge spacer for condensation resistance
Thermal Performance: U-Factor as low as 0.27 (Btu/hr·ft²·°F) depending on configuration
Air Infiltration: ≤ 0.10 cfm/ft² (per ASTM E283)
Water Resistance: Passed ASTM E547/E331 for wind-driven rain protection
Sound Transmission: STC Rating ≈ 28–34 dB (varies by glass option)
Design Pressure (DP): Up to DP-50 depending on size and style
Panora’s vinyl and aluminum systems — including the Alside Fairfield 80 and Mezzo Series — are engineered, tested, and certified to meet international performance and safety benchmarks. Every system reflects our commitment to precision engineering, durability, and environmental responsibility.







Panora Windows and Doors LLC DBA Panora Luxury