TECHNICAL

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Installation:

Windstop windbreak fabric is installed running perpendicular to the prevailing wind. The minimum Windstop windbreak shelter height should be 2 times the height of the crop. Ideally, the shelter length should be 10 times the height of the crop. The shelter should extend past both sides of the crop. Note: Engineering economies dictate that the maximum height of the shelter fence (poles) should not exceed 6m.

Pole Construction:

Wooden or steel poles may be used. Great care should be taken that they are strong enough to meet the loads likely to be experienced. Ideal timber is Douglas Fir or Radiata Pine. Pole diameter should be 220 - 250mm. Pole height should be 1.5 times the total height of the fabric. (1/3 of the pole goes below ground). Place poles 4-6m apart.

Fabric Placement on Wire: Heavy 10 gauge wire should be installed horizontally along each width of cloth. To attach the top and bottom of each width of windcloth, fold the cloth into a hem and fasten using either Permaclip fasteners, hog ring staples, or stitching (black polyester thread). In areas of high wind, run wires of 8-10 gauge (on each side of the fabric) at intervals between each width of cloth along the fence length. These wires stabilize the panels and are not fastened to the cloth.

Structure (Pole) Attachment:

When erected, the fabric should be allowed to slightly billow. This will reduce wire strain and cloth failure. After all wires and fabric are erected, the fabric can be attached to each post by either nail plates or treated 50mm x 12mm battens. The batten is placed over the cloth along the entire length of each post and fastened to the post by self tapping screws, flat head 25mm galvanized nails, or staples at 300mm intervals. The wires may be fastened to the batten with staples.

Warranty

10 years pro-rata against UV (New Zealand).

Accessories

See Permaclip fasteners