Passive Solar Greenhouse Tunnel Greenhouses Double Span Agricultural Greenhouses With Quilt For Cold Area

High-Efficiency Thermal Retention
Double-layer UV-resistant polyethylene film with reinforced stitching traps solar heat effectively, while the thick thermal quilt minimizes heat loss in sub-zero climates.
Durable Steel Frame Construction
Galvanized steel arches with anti-corrosion coating support heavy snow loads (up to 35 lbs/sq ft) and winds up to 55 mph, ensuring year-round durability.
Modular Double-Span Design
Wider 30-foot spans provide unobstructed growing space for tall crops or vertical farming, with roll-up side vents for precision climate control.
Cold-Climate Optimized
Insulated quilt system with reflective inner layer boosts winter crop survival rates, maintaining 10-15°F warmer than conventional greenhouses.
Multi-Season Agriculture Ready
Ideal for extending growing seasons in zone 3-5 regions, suitable for commercial berry farms, winter greens production, or nursery seedling hardening.
Tool-Free Assembly
Pre-punched components and snap-lock connectors enable rapid deployment – complete 20x50ft structure installs in under 6 hours with basic tools.
Low-Profile Snow Shedding
Steep 30° roof pitch prevents snow accumulation, reducing structural stress during heavy winter storms.
Global Bulk Supply Advantage
Factory-direct pricing saves 40% vs. retail channels, with MOQ flexibility for farm cooperatives or large-scale agribusinesses.
Certified for Extreme Conditions
Meets CE EN 13031-1 standards for commercial greenhouse safety, backed by 10-year frame warranty.