This agricultural tunnel greenhouse puts a three-layer compressed PE film over a hot dip galvanized steel structure. The film holds warmth and diffuses light across the row, and the arch roof sheds rain without a gutter. Span runs from 8m to 12m and height from 3m to 8m, with length set to the site. It is built for tomato, vegetable and flower cultivation on open ground.
This agricultural tunnel greenhouse covers open ground with a three-layer compressed PE film held on hot dip galvanized steel hoops. The arch roof sheds rain and snow without a gutter, and the film diffuses daylight along the row rather than casting hard shadow. An opening flap or roll-up side gives ventilation in warm weather. Spans run from 8m to 12m and total height from 3m to 8m, with length set to the site, so the same structure fits a small holding or a larger block of land.
The structure uses hot dip galvanized steel pipe and formed hoops. The zinc coating resists the humid air of a working greenhouse and keeps the frame sound through years of service. Hoops are joined by purlins and cross braces, and the whole frame is assembled from bolted sections on site without welding.
The covering is a three-layer compressed PE film. It holds warmth, spreads light across the row and costs far less than glass or rigid sheet. Because the film is supplied in rolls, a torn cover can be replaced over the existing frame without taking the structure down.
| Structure material | Hot dip galvanized steel pipe |
| Covering material | Three-layer compressed PE film |
| Roof shape | Arch roof, tunnel type |
| Span | 8m / 9m / 10m / 11m / 12m |
| Length | 10m to 100m, or to client demand |
| Total height | 3m to 8m |
| Ventilation | Roll-up side or opening end flap |
| Service life | 15 to 20 years for the frame under normal growing conditions |
| Applications | Tomato, vegetable, fruit and flower cultivation |
A tunnel is the simple form of a film house. The arch carries the film without posts in the middle of the bay, so machinery and pickers move freely along the row. The covered area warms faster than open ground in spring and holds heat into the evening, which is why it is common for tomato and vegetable cultivation. FAO notes that protected cultivation of this kind extends the growing season and raises yield per square metre in many climates.
Ventilation is handled by rolling up the side film or opening an end flap. Warm air leaves at the ridge and cooler air enters low down, so the temperature stays even along the row rather than pooling near the middle. For tomato and similar crops this steady climate reduces fruit drop and leaf burn in high summer. HortiDaily covers how commercial growers plan this type of structure.
The frame ships as a knockdown kit of galvanized pipe and hoops, and the film is supplied in rolls. Work follows a set sequence: set the foundation, raise the hoops and purlins, then tension the film over the frame. Our engineers can travel to site to guide installation when required.
Routine work is limited. Check the film tension after storm season, clear the ground around the base, and inspect the pipe joints for movement. The galvanized frame is rated for 15 to 20 years under normal growing conditions.
This agricultural tunnel greenhouse suits tomato, vegetable and flower cultivation, fruit growing and general farm cover work. Because span, length and height are all set to demand, the same structure serves a small holding or a large estate. Browse the full range on our tunnel greenhouse page, or compare it against the film greenhouse and glass greenhouse ranges.
It is built for tomato, vegetable and flower cultivation as well as fruit growing on open ground. The high arch also lets pickers and small machinery move along the row.
The cover is a three-layer compressed PE film. It holds warmth, diffuses light and can be replaced over the existing frame without taking the structure down.
The hot dip galvanized steel frame is rated for 15 to 20 years under normal growing conditions. The film cover is replaced on a shorter cycle.
Span is available in 8m, 9m, 10m, 11m and 12m. Total height runs from 3m to 8m, and length from 10m to 100m or to your site requirement.
The frame ships as a knockdown kit of galvanized pipe and hoops, with the film in rolls. Our engineers can travel to your site to guide installation when required.
