By: Polynet  06-Dec-2011
Keywords: High Tensile, Galvanised Steel, Commercial Growers

Polynet Maxi-Cloche is a new cloche system designed by Polynet Products Limited for use by commercial growers and large scale home growers to extend growing seasons, increase yield and to provide protection from pests and extreme weather.

Heavyweight Crop Cover 8m x 50m

Knitted from transparent UV stabilised HD polyethylene thread, Tunnet is permeable to air and water, preventing overheating, excessive humidity and condensation.

With 19% shading & covering of 98% Tunnet cover provides ideal growing conditions.

The STRUCTURE - Fibreglass & Steel

Polynet Maxi-Cloche uses galvanised steel supports to hold high tensile fibreglass rods at the ideal angle for maximum span and strength.

The supports are constructed of tubular steel and feature strong forks that are reinforced with plate steel to minimise movement in the ground.

Spanning the 7.1m width the Maxi-Cloche uses UV stabilised, high tensile 19mm fibreglass rods each 7.2m long.

The rod and support sets are installed 4m apart (2m for ends) to span a row length of 40m which allows clear crop coverage of at least 46m.

The FASTENING - Clips, rope & golf balls!

The Tunnet cover is fastened at the ends by wrapping the corner of the cover around a golf ball - or golf ball sized rock - and tieing securely under as much tension as possible to end stakes.

6mm polyethylene rope is tied - under tension - between end stakes. The sides of Polynet’s Maxi-Cloche are secured by plastic butterfly clips which wrap the cover around the side rope and fasten onto hooks on the side of the supports.

One side may be untied and then unclipped and the cover slid off to one side to gain access for weeding/spraying or to harvest.

The TRIALS Marshlands - Christchurch

The Maxi-Cloche has been developed, refined and tested in partnership with a leading Christchurch commercial grower at Marshlands through the winter & spring of 2009.

The Maxi-cloche protected the crop from typical stormy spring weather and withstood both the very strong nor'west gusts and the incessant easterlies that tend to pound Christchurch at that time of year.

Benefits included frost protection, increased yield and a reduction of pest damage.

Other custom sizes available including 100m lengths and 5.4m rods to span 5.3m using 6m Tunnet cover.

Maxi-Cloche 8x50T

1 roll Tunnet cover 8m x 50m

24 Galvanised steel rod supports

12 High tensile UV stabilised -

fibreglass rods 19mm x 7.2m

1 roll polypropylene rope 6mm x 150m

200 plastic butterfly clips

$2648.00 + GST ex Christchurch.

Polynet Products Limited
- for quality innovative crop protection products and unbeatable service

The information in this article was current at 02 Dec 2011

Keywords: Butterfly Clips, Commercial Growers, Fibreglass Rods, Galvanised Steel, High Tensile,

Other products and services from Polynet



This incredibly versatile crop cover is used to protect crops and plants from frost, heavy rain, hail, cool winds, flying insects and birds.Mikroclima is also used to create an ideal growing environment which promotes growth and yield while extending growing seasons.



Tunnet has been used with great success over a wide range of structures, from small individual shelters to protect shrubs or trees, cloches for vegetable growing, low lying hydroponics and watercress systems to large canopies covering vegetables, flowers and tropical fruit trees.


Fibreglass Roads & Accessories

We supply Butterfly clips and/or Ground Staples for fastening Mikroclima and offer four different sizes of Fibreglass Rods for the construction of cloches and growing tunnels. Excellent growing conditions can be created by making a half cloche up against a north facing fence or wall. Holes can be drilled into timber pegs or the timber sides of a raised garden to support the rods firmly.