Tunnel Greenhouses

Tunnel greenhouses are semi-circular or arched structures, usually made from galvanized metal pipes and covered with polyethylene plastic. They are simple, lightweight, and quick to construct, making them ideal for vegetables, seasonal flowers, seedlings, and low-cost cultivation.

Main Components:

• Metal frame: Galvanized bent pipes forming arches (span between 6 to 10 meters).
• Covering: UV-stabilized polyethylene film, 180–220 microns thick.
  Doors and windows: For ventilation and access.
• Ventilation system: Usually natural ventilation via side and roof windows.
• Foundation: Often installed on bare soil or simple concrete bases.

Advantages of Tunnel Greenhouses:

✅ Low cost
✅ Fast installation
✅ Lightweight and portable
✅ Easy to control temperature and humidity
✅ Snow and rain do not accumulate
✅ Flexible against wind, reducing its impact

Common Dimensions:

• 6-meter span: Height 2.5–3 m, length 20 m
• 8-meter span: Height 3–3.5 m, length in multiples of 6 m
• 10-meter span: Height 4 m and above, suitable for industrial cultivation

Applications:

• Mushroom cultivation
• Vegetables and horticultural crops
• Ornamental, indoor, and medicinal plants
• Cultivation of saffron, strawberries, and aloe vera