Tunnel types and accessories

Roman Tunnel

The Roman Tunnel is a highly flexible system for the professional cultivation of strawberries, raspberries, asparagus, and other specialty crops. It is the ideal system for forcing strawberries or asparagus into the ground. Its size makes it well-suited as a walk-through tunnel.

Standard width: 5.50 m – Available widths: 3.50 m – 6.50 m
Length in 2 m increments, typically 50–120 m
Primarily constructed with 32 mm steel tubing
Various configurations and reinforcements available

Richel Tunnel

Richel offers a wide range of products, from the smallest polytunnel with a width of 6.20m to a fully equipped greenhouse. These are high-performance systems for the professional cultivation of strawberries, raspberries, asparagus, and other specialty crops.

OV90

• Models
Width: 8m – Sidewall height 1.96m
Width: 9.3m – Sidewall height 1.90m

• Robustness
OV90 steel tubing with high elastic limit Arches that can be spaced up
to 3m apart depending on the installation location
Reinforced ends with additional supports and diagonal braces

• Load capacity
Load capacity up to 40 kg/ml possible
Cultivation carriers also serve to reinforce against wind and snow.

Multitunnel

• Models
Width: 6.20 m – Oval tube 60, sidewall height 2.20 m
Width: 8.50 m – Oval tube 60, sidewall height 2.20 m
Width: 9.60 m – Oval tube 90, sidewall height 2.45 m

• Improved productivity
Optimized growing area on the broad sides
Gable height up to 4.65 m
Multi-bay tunnel construction possible

• Robustness
Resistance to snow and wind loads

• Manual or motorized side ventilation optionally available

Rain Covers

Rain covers are a simple and cost-effective way to protect your raised beds from the elements. One advantage of rain covers is that they allow for good ventilation in warm summer temperatures. However, a disadvantage is that the openings can lead to rain or wind damage to the plants growing on the sides. In this case, it is not possible to advance or delay the growing season.

Accessories for polytunnels

Our partners offer a comprehensive range of accessories, add-ons, and reinforcements. These are tailored to individual cultivation needs and regions.

Accessories Overview:

Steel

Steel pipes with various diameters
Ground anchors
Ridge poles and bracing

Foils and nets

Standard foils in various widths
Diffusion or high-diffusion foils
Thermal foil or foils with special properties
Foil fabric or shade netting
Insect netting

Small parts

Metal clips
Tension rope
Protective film

Zubehör Folientunnel

Unsere Partner bieten ein umfangreiches Sortiment an Zubehör, Zusatzausstattung und Verstärkungen an. Diese richten sich nach individuellen Anbaubedürfnissen und Regionen.

Films:

Film thicknesses

180/200 µm in Central Europe (UV stable for up to 4/5 years)
140/150 µm in Spain or England (UV stable for only 2/3 years)

Film properties

Diffuse
UVB-open
Super-clear
Anti-condensation

Light loss in polytunnels

Approximately 10% through the film + 7% for each additional year
Approximately 5% for steel pipes/structure
Generally, approximately 70–85% light transmission in polytunnels and greenhouses

Rule of thumb from horticulture: 1% more light = 1% more yield