Redpath arch tunnel house spans

The Redpath tunnel designs are one of Redpaths most popular greenhouse buildings with 1000’s of these commercial buildings installed nationwide. They use long life box section arch hoops and poles, with strong plate connectors and 12mm bolts and nylocks, and folded steel ‘walk-through’ long life gutters are standard.
This gives a robust and durable greenhouse for wind-loads and provides a simple assembly process. Standard arch spans are 6m, 8m or 9.2m. Any of these spans may be inter-connected side by side for a multi span layout. Lengths can be anything from 12m through to 150m or more.

These designs are popular for shoulder-season crops, nursery crops, berries, fruits, vegetables and flower crops that require protection from the outside environment.

Supplied with long-life Duratough 210 micron singleskin cladding or energy efficient twinskin cladding. Crop support, Overhead shade or thermal screens can be included in the design.
Ventilation being provided by either manually operated or automatic roll up sidewalls, Gable ends may also be clad in shadecloth to allow simple escape of warm air through the gable area.

Forced airflow fan extraction systems with rack and pinion side vents is also an option.

Insect or pest screens may be fitted to all ventilator openings for pest exclusion if required.

Basic Specifications:

Span / Bay Widths: 6m, 8m or 9.2 metres wide (multiple arch spans can be connected side-by-side)
Post spacing length ways: 3 metres between posts
Height to gutter options: 2.5, 3m, 3.5m, 4m, or 4.5 metres
Apex height: Up to 6.5 metres
Side ventilation: – standard roll up wall, manual or optional automatic. Rack & pinion side vents also available or forced air fan with cooling inlet pad system.
Roof cladding: Single-skin or Twinskin Duratough 210 4 Year film (service life 6-8 years)
Wall cladding: Single-skin or Twinskin Duratough 210micron 4 Year film (service life 6-8 years)
Greenhouse film anti-fog package: Included
Frame Guard Tape: Polyguard fitted to all roof members that touch the plastic included
Gutter design: Wide “walkthrough” Vee gutter, steel, gives easy & safe access to roofline.
Doors: Sliding door with aluminium framed, aluminium base sheet with clear acrylic top section panels, doors may be in end or sidewall
Footings: Typically 1.25 metre deep x 0.450 diameter (soil type dependent)
Wind load: 120kph, greater if required
Crop loading: 15kg m2, greater if required, crop kit system included on request. (overhead wire location by client)
Snow load: Yes, snow load compliant up to 50kg m2
Kitset supply: Yes, can be all pre-drilled ex-factory for easy frame assembly on site
Installation: Redpath can supply in Kit form or have your nearest subcontract builder install your building for you.
Main assembly: all bolted design, Rubber sleeves (3mm thick) fitted to all poles at ground contact for superior anti-corrosion
Warranty: Yes, Redpath 5 Year gold series manufacturer’s warranty, with extra warranty on coverings

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