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Multispan Poly Tunnel Greenhouse

The Multispan Poly-Tunnel Greenhouse by TOP offers a sturdy, modular structure featuring galvanized-steel frames and UV-stable polyethylene or PO film. Engineered for strength and climate control, it supports tailored irrigation and ventilation systems to boost crop yield, protect against harsh weather, and reduce operating costs—making it a smart, efficient choice for modern agribusiness.
  • TOP

  • Aluminum, Galvanizing Steel

  • PE Film, PO Film

  • OEM, OED

  • ISO

  • China

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Video of Multispan Poly Tunnel Greenhouse

Introduction of Multispan Poly Tunnel Greenhouse

What is a Multispan Poly Tunnel Greenhouse?

A multispan poly tunnel greenhouse is essentially multiple tunnel-shaped greenhouses connected together. Instead of separate single tunnels, the spans are linked, creating a large, unified structure.

Structure and Design

The frame is usually made of galvanized steel, while the covering is UV-stabilized polyethylene film. The arch design allows better wind resistance and stability.

Types of Poly Covers

Single Layer Poly Film – Affordable and commonly used.
Double Layer Inflated Film – Provides better insulation and energy savings.
Thermal Poly Film – Reduces heat loss and prevents condensation.
Poly Tunnel Greenhouse

Poly Tunnel Greenhouse

Poly Tunnel Greenhouse

Poly Tunnel Greenhouse

Poly Tunnel Greenhouse

Poly Tunnel Greenhouse

Key Features of Multispan Poly Tunnel Greenhouse

Flexibility in Size and Design

These greenhouses can be tailored to fit small farms or large commercial agribusinesses. The modular design allows easy expansion.

High Durability

Made with galvanized steel and high-quality polyethylene, the structure is designed to withstand wind, rain, and moderate snow loads.

Efficient Climate Control

Temperature, humidity, and light can be regulated through ventilation, shading, and heating options.

Cost-Effectiveness

Compared to glass greenhouses, multispan poly tunnels are much cheaper to build and maintain, making them accessible to farmers with different budget levels.

Advanced Irrigation and Fertigation Support

Drip irrigation and fertigation systems ensure water and nutrients are delivered directly to plant roots, reducing waste and improving efficiency.

Better Disease and Pest Management

Controlled entry points, insect-proof nets, and sanitation measures reduce the spread of diseases and pests.

Parameters of Multispan Poly Tunnel Greenhouse

Techinical Parameters
Dimension
Load Parameters
Span Width 8, 9, 9.6, 11.2, 12.8 m Wind Load 40~120 km/h
Bay Length 4, 4.5, 5 m
Snow Load 0~100 cm
Gutter Height 4, 5, 6 m
Hanging Load
0~15 kg/㎡
Top Height 5.2~9.3 m
Max. Drain Capacity
140 mm
Skeleton Frame
Hot Dip Galvanized Steel Tubes
Coverings
PO Film, PE Film
Optional Systems
Ventilation System, Circulating Fan, Fan Wet Curtain System, Inside And Outside Shading System, Planting System, Irrigation System, Water And Fertilizer Integration, Electrical Control System
Applications Leafy Vegetables, Eggplants, Mushrooms, Flowers, Seedlings, Poultry, Fish Pond Shed, Parking Shed, Material Warehouse
Remarks The above parameters just for reference and subject to our actual projects, we accept customization.

Advantages of Multispan Poly Tunnel Greenhouse

Increased Crop Yield: By creating an optimal microclimate, poly tunnels help boost productivity by 2–3 times compared to open-field farming.
Better Resource Efficiency: Efficient use of water, fertilizers, and energy reduces costs and promotes sustainable farming practices.
Reduced Risk of Crop Loss: Protection against heavy rains, winds, hail, and extreme temperatures ensures minimal crop damage.
Energy Efficiency and Sustainability: Poly film retains heat effectively, reducing the need for additional heating and lowering energy costs.
Enhanced Crop Quality: With controlled environments, crops grow uniformly, have better color, taste, and longer shelf life.
Wide Crop Adaptability: From tomatoes and cucumbers to strawberries and ornamental flowers, almost any crop can be grown in these structures.
Protection from Extreme Weather: Farmers gain peace of mind knowing their crops are safe from storms, frost, and unpredictable weather events.
Reduced Dependency on Chemicals: With better pest management and integrated irrigation, farmers can cut down on pesticide and fertilizer use.
Faster Return on Investment: Though initial costs are higher than open-field farming, increased yields and year-round production ensure quick ROI.
Supports Modern Agribusiness Models: From contract farming to export-oriented cultivation, poly tunnels align perfectly with the needs of modern agriculture.

Comparison with Single-Span Tunnels

Strength & Wind Resistance

Multispan tunnels are sturdier against storms.

Productivity

Larger internal space means higher yield.

Cost

While initial investment is higher, long-term ROI is better.

Applications of Multispan Poly Tunnel Greenhouse

Vegetable Greenhouse (1)

Vegetable Greenhouse

Fruit Greenhouse (1)

Fruit Greenhouse

Flower Greenhouse (1)

Flower Greenhouse

Seedling Greenhouse

Seedling Greenhouse

Aquaponics Greenhouse(1)

Aquaculture Greenhouse

Laboratory Greenhouse(1)(1)

Laboratory Greenhouse

Commercial Greenhouse (1)

Commercial Greenhouse

Restaurant Greenhouse

Restaurant Greenhouse

Cost Breakdown

Construction Costs

Around 25–40% cheaper than glasshouses.

Operating Costs

Lower energy bills with insulation.

ROI

Most farmers recover costs within 2–3 years.

Future of Multispan Poly Tunnel Greenhouses

The future looks promising with:

Smart Greenhouses using IoT for real-time monitoring.
AI Integration for predictive crop management.
Eco-Friendly Designs using biodegradable films and renewable energy.

Conclusion

Multispan poly tunnel greenhouses are more than just shelters for plants—they're a game-changer for modern farming. They combine cost-efficiency, productivity, and sustainability, making them one of the smartest investments for farmers.

If you're aiming for year-round crop production with less risk and better yields, this structure is worth considering.

FAQs about Multispan Poly Tunnel Greenhouses

1. What is the lifespan of a multispan poly tunnel greenhouse?

The frame lasts over 15 years, while poly covers usually last 3–5 years before replacement.

2. Can I grow crops all year in a poly tunnel?

Yes, with proper heating, cooling, and irrigation systems, year-round farming is possible.

3. How much does a multispan poly tunnel cost?

Costs vary depending on size and equipment, but they are 25–40% cheaper than glasshouses.

4. Do poly tunnels save water?

Yes, drip irrigation systems inside poly tunnels reduce water consumption significantly.

5. What's the difference between single-span and multispan tunnels?

Multispan tunnels provide larger space, higher stability, and better ROI.

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