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Below is a feature comparison table of our Haygrove Tunnels and traditional polytunnels, or greenhouses.
 Permanent Greenhouse |
 Haygrove Polytunnel |
 Traditional Polytunnel |
|||
| Site | Must be site levelled | Tunnels Follow the contours of the ground | Generally follows contours of the ground | ||
|---|---|---|---|---|---|
| Foundations | Concrete | Anchoring technology - the foundations are screwed into the ground | Simple anchor and soil normally used to bury the polythene along the perimeter | ||
| Materials | Galvanised steel using structural grades | Galvanised steel using structural grades | Local mild steel and often wood ends | ||
| Flexibility | Polythene clad | Polythene can be interchanged with shade or hail net or used in combination | Polythene fixed | ||
| Moveability | Fixed | Fixed or Portable | Generally fixed | ||
| Access | Specialist Greenhouse equipment | Field scale tractors and equipment | Hand work or small tractors | ||
| Area | Specialist areas | Field Scale - can protect large scale areas of field grown crops | Normally single bays | ||
| Construction | Specialist contractors | Self-build | Self-build | ||
| Ventilation | Fixed or automated vents | Polythene fully open or closed using either venting tool or electric roller vents | Plastic dug into soil. Ventilation through ends only | ||
| Cost & Payback | High cost per sq meter and longer paybacks | Lower cost per sq meter and paybacks targeted for 2 to 3 seasons | Low cost | ||
| Technologies | Steel gutters, trellis, roller ends and automated ventilation all available | Steel gutters, trellis, roller ends and automated ventilation all available | Limited technologies | ||
| Weather | Specified for specific weather conditions for all year round | Specified for specific weather conditions. Generally specified for spring, summer and autumn cover with polythene removed in the winter | Generally no set specification for weather | ||
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Contact Us2290 Celtis AvenueKlipkop Grabouw 7160 Tel: 021 859 1026 Fax: 086 646 3686 |
