Premium Passive Solar Greenhouse – Double Span Tunnel Design with Thermal Quilt for Extreme Cold Climates
Engineered with heavy-duty galvanized steel frame for unmatched durability and corrosion resistance. Features a double-layer polyethylene cover with UV stabilization to maximize light diffusion and heat retention. Innovative thermal quilt system (included) with reinforced stitching ensures superior insulation, maintaining optimal temperatures even in sub-zero conditions. Double-span design expands growing space while enhancing structural stability against snow loads. Ideal for commercial agriculture, organic farming, or year-round crop cultivation in cold regions. Seamless roll-up side vents allow precise climate control and ventilation. Direct wholesale pricing – bulk order discounts available for large-scale farm operations. Custom sizing options upon request. Ships globally with weatherproof packaging.