We also have our own commercial nursery so we have a practical. High Tunnels are similar to hoop houses but are taller and are mostly used for commercial crop production. Lets go over them in a list here, before taking a deeper dive into each type of hardware component. 5 yrs CN Supplier . Max out your farm with the thickest gauge steel Caterpillar Tunnel on the market! We now offer a 16-ft wide tunnel (up from 14 ft) with 40% thicker, 14-gauge steel bows (up from 17 gauge). Fig. Full-text available. All of our 6 mil Greenhouse Poly comes pre-folded and rolled up on a hollow cardboard cylinder. Polybags average a thickness of 1-6 mils. The metal band that binds the bristles or hair of a brush to its handle. 49 £ 13 . Click + Collect available. 5m(800G) 14m(800G) 14m(1000G) 15m(800G) 15m(1000G) Please note: Minimum cutting length is 10 meters. 13. 12 foot x 20 foot. If cost is one of the main factors affecting your decision, polytunnels are far less expensive to install than greenhouses. 5 out of 5 stars 4. Allows for an earlier harvest—up to three weeks earlier harvests have. 10. Wider ScopeFig. That’s Aussie smarts, used to create products for unique Aussie conditions. Available widths: 8m - €15. Axiome 10mm Sheets tend to be the most popular thickness of polytunnel plastic as they offer the right mix of flexibility and strength. A 10ft wide polytunnel is a popular choice for home gardeners and allotment holders. This helps us ensure that we are providing the structural solutions that are built to withstand the worst. Horizontal brace bars for 12ft wide tunnel approx $72 per bay plus freight. 1x 5 Metre Clear Vegetable Fruit Polytunnel Grow Tunnel - Steel Frame Garden Greenhouse Plastic Poly Tent - by Harbour Housewares 3. Chat now. Free standard delivery on orders over £75. . Tomatoes need a germination temperature that remains between 25ºC and 27ºC, and 20ºC after they have emerged. £400. The steel has a yield strength of 350N/mm 2 which is stronger than the standard 275N/mm 2. Perfect for new polytunnel builds or as replacements for an existing polytunnel system, all our covers are made with polythene for its thermal, weather resistant qualities. The tunnel houses you can buy have various options for ventilation including louvres, roof vents and doors. • All our tunnels have a 5 year polythene with an ultra violet light inhibitor, to protect from break down by the suns rays. It is framed with steel and is generally made of crop bars, base rails, and a plastic polythene cover. 45m. Not bad considering. 00 - $13. Poly Lock Channel is secured to metal framing using Self Tapping Tek Screws. Their maintenance is easy but life is less than polyhouse and has comparatively higher temperature inside the structure due to less. Product code. 90. 8 1/2 inch rebar or conduit brackets. 4-Tier Green 160cm Greenhouse - Polytunnel Poly Plastic Garden Plant Vegetable Mini Growhouse Tent Polyethylene Cover - By Harbour Housewares. Hoops constructed of wire (9-gauge) or pipe (metal or plastic) can be. It took several months to collect enough bottles (around 2,000 I think they mentioned) and was a fiddly job cutting the bottles to fit the bamboo poles the bottles needed to thread through. Whether you're looking for a timber or polycarbonate structure, read on for our tips to find the perfect greenhouse on a budget! Hot spots can degrade the polythene plastic over time. Browse Getty Images' premium collection of high-quality, authentic Plastic Poly Tunnel stock photos, royalty-free images, and pictures. Optimized for maximum light transmission, our 4 Year Clear Greenhouse Plastic Sheeting is second to none. 98. With a four-year warranty against UV degradation, Bootstrap Farmer's hoop house plastic film can also be cut to custom sizes. 00 $345. It is a good choice for seasonal greenhouses, overwintering structures and high tunnels. The ‘dalek’ composter. Peppers and aubergines can also be grown up strings if you wish, there is a tradeoff between space requirement and extra work. A polytunnel can cost USD 50-4,000, depending on the size and materials you choose for construction. 60-$5. We offer 200micron High Diffusing UV Stabilized PE Greenhouse film. Less demand for watering. Like a. Logged. The. The Glasshouse Company are manufacturers of. Greenhouses come in a range of widths and lengths, in 2ft (60cm) increments. No wonder it has made it to the top of our list of the best polytunnels for an allotment or garden on a budget. £34. Also, the size of this particular small polytunnel is 6 feet long X 7 feet wide X 7 feet tall. BHGS Ltd, Vale Park, Evesham, Worcestershire WR11 1GP Tel: 01386 444100 Fax: 01386 444101 Email: sales@bhgsltd. . 2 x 6M Heavy Duty Polythene Sheeting, 125Mu/500g Extra Thick Plastic Sheeting Clear Garden Grow Polytunnel Cover Plastic Dust Sheet, Garden Grow Polythene Cover Sheets for Greenhouse, Polytunnel. Preparing Your Polytunnel Interior. Polytunnel plastic is typically made of polyethylene, a thermoplastic that can be melted down and reused. Screwing the Channel to Metal. Dimensions: L85cm x W40cm x H21cm. Then, drape a sheet of heavy duty polytunnel plastic and staple it to the bottom of your garden box. 25m Net Garden Cloche 1m x 1m. At the end of the season, carefully disassemble the DIY polytunnel and store away until the next growing season. Garden Grow Tunnel 6x3m. ADD TO BASKET. FREE delivery Tue, 3 Oct on your first eligible order to UK or Ireland. Row Cover Hoop House from Bonnie Plants. Low tunnels are temporary structures that are approximately 4 feet tall and 3 to 6 feet wide. £5. 5 out of 5 stars 430. I’m in the northeast USA. Trusted by Growers for 40 years, Monbulk Rural Enterprises have changed our name to Hortitech; the market leader in the design and supply of Greenhouses and Crop Cover Protection Solutions to the Horticulture Industry. Solar tunnel offer a standard straight-sided burrow plan, however the spread is very . Woven 9 mil Plastic Covering. You will also need to factor in the cost of having a. 100s of help & advice articles. 00. We have fixed widths of covers, please note that certain covers have limited widths available and selecting one of these may result in. Allow at least 1 to 2 feet of space in between staples and screws. Gardman 7624 poly-tunnel with reinforced cover & Windows. Greenhouses & Polytunnels for sale in Ireland - Buy Greenhouse Online - Polycarbonate Polyunnels - Vegetable Seeds and Greenhouse Accessories - We are specialists in polycarbonate polytunnels and greenhouses. It helps if you measure the plot first to make sure it’s square. Contact 01282 811250 today! Manufacturing and Building Polytunnels, Greenhouses and Canopy Structures in Ireland for over 48 years! We believe in supplying and building for our customers a quality product that lasts a lifetime. Polytunnels first appeared in the 1960’s once the plastics industry managed to produce reliable wide width polythene sheeting. They can fit within many gardens and other growing spaces while still offering a good amount of space for growing food. 50. For the most part, are clear or transparent bags made of plastic most commonly used for packaging and shipping specific consumer products. Crops such as green beans, onions, and peas are the most sensitive, while cabbage, cucumbers, peppers, and potatoes are a bit salt tolerant. For the headboard, you will need 2×6×76 inches. . I worked in a commercial grower operation (about 8 acres under plastic) and even huge holes were best repaired with tape. Pro-Gro Mini Poly Tunnel – 2m long x 0. Different shapes and sizes of polytunnels can be built, to create microclimates suited for different types of vegetation. Our most popular polythene cover incorporates an additive that increases its Thermic efficiency, yet still retains 90% light transmission. $16. View More. Inhibits fungus spore development for healthier plants. Unfortunately the best 'glue' is tape. How To Build A Polytunnel (using a kit). Greenhouse material, such as shade cloth, is a simple solution that affords those that battle against the elements to reclaim the comfortable conditions required to maintain stable growth and healthy plants. Related Images:" polytunnel stock pictures, royalty-free photos & images Browse 116 plastic poly tunnel photos and images available, or start a new search to explore more photos and images. For a 3 foot wide tunnel you will need a meter of tubing. 98. Buy Plastic Greenhouses & growhouses at B&Q 1000s of DIY supplies. Install the roof over the plastic sheeting. Available in timber or aluminium options, Base Rails do away with the need for digg. Garden Hoop Grow Tunnel Frame Kit - Small. 86% on a cloudy day. Lay out the poly lengthwise on one side of the high tunnel. Available in timber or aluminium options, Base Rails do away with the need for digg. $50 Hoop House from The Door Garden. A polytunnel can cost USD 50-4,000, depending on the size and materials you choose for construction. Outsunny 6 x 3 x 2 m Polytunnel Greenhouse Pollytunnel Tent w/ Steel Frame White. See full list on clearambershop. £149. Polythene Covers, Netting & PVC / Canopy Covers. A polytunnel (also known as a polyhouse, hoop greenhouse or hoophouse, grow tunnel or high tunnel) is a tunnel typically made from steel and covered in polyethylene, usually semi-circular, square or elongated in shape. Polyethylene: The chemical name is polyethylene, which is a semi-crystalline thermoplastic material used to make PE. We supply UK manufactured polytunnels to farms, domestic growers, large garden centres and commercial users throughout the World. Was: £299. We use a local galvanising. In my own polytunnel over the last few years I have grown a range of Tomato plants including the cherry tomato ‘Sungold’ the heritage ‘Super Marmande’ and the Hybrid ‘Gigantomo’ which still remains my favourite. Or fastest delivery Tomorrow, 1 Oct. com. It is best to do this on a calm day. Add to Cart Compare. By capturing and retaining solar radiation, these tunnels are an awesome tool to have. Copolymer poly is a low-cost material that is good for one season. 8m wide x 0. Arunabha Pal. It should be about an inch thick. 8m(800G) 9m(800G) 11m(800G) 12. 00 Sale. Ideal for easily repairing tears in polythene covers. . They can fit within many gardens and other growing spaces while still offering a good amount of space for growing food. Pro Max Range: 4m x 3. 30ft (9. Buy it now + EUR 2. Poly-Tex High Tunnel greenhouses are a quick and inexpensive way to lengthen your growing season, protect your crop from pests and disease, decrease water usage, and increase your crop yield. Crops Suitable for Polytunnels. From Einhell to Outsunny, you'll find a wide selection of greenhouses, polytunnels, balcony greenhouses and walk in greenhouses from our outdoor brands. £219. Peppers and aubergines can also be grown up strings if you wish, there is a tradeoff between space requirement and extra work. 3m Long x 33mm OD Z35 High Tensile Galvanised Tube. If fencing in your garden isn’t an option, using polytunnels to protect your veg is the next best thing. Greenhouse Garden Polytunnel Grow Tunnel Vegetable Allotment 0. Many market gardeners use it as a starting point, often than later converting the caterpillar tunnel into a high tunnel greenhouse. AU $31. I already have a hanging shelf (made with leftover polytunnel plastic sheeting and scrap wood) and a trellis (on which I string milk bottles for additional container growing. Min Order: 400. Best End-Wall Greenhouse Plastic: Clear 12 mil Woven Greenhouse Plastic. As the name suggests, a polytunnel is a structure made of polyethene plastic that’s usually shaped into a tunnel using plastic or steel hoops. Of course, there are exceptions to every rule. Once erected they will be there for several years, so check out my tips before buying. Allow 2-6 working days for receipt of goods. Northern Polytunnels has become a household name that is synonymous with quality. 25m Net Garden Cloche 1m x 1m. Click What's In The Kit for details. Pull plastic over the tunnel. Spares & Accessories. 99. Cold Frames are smaller polytunnels that protect plants from frost and cold weather. Constructed from durable polyethylene, this green polytunnel connects with ties for easy assembly and stronger, longer lasting life span. Poly-Tex High Tunnel greenhouses are a quick and inexpensive way to lengthen your growing season, protect your crop from pests and disease, decrease water usage, and increase your crop yield. Jessica Walliser. 5 m height protected structures made for commercial cultivation of low growing crops in off-season to get higher market prices. . Replacement Covers. 3m Long x 33mm OD Z35 High Tensile Galvanised Tube. 98. If you are cutting from a longer roll of plastic, be sure to leave 2’ extra on each end to allow for attaching to the end walls. Buy Plastic Greenhouses & growhouses at B&Q 1000s of DIY supplies. Large Tunnel Greenhouse Plant Garden. They continue to become more popular each gardening year. 3m x 2m (9ft 10in x 6ft 7in) Premium Polytunnel Galvanised Frame by New Leaf™. Our poly tunnel plastic come with a 5 year guarantee. To do this, dig a trench all around (30 cm deep) and cover the material with dirt. 25m x 1. These wood pallet shelves simply stand at one end of the polytunnel. White Sandbags - UV Protected - 14" x 26". Typical specifications for a high tunnel covering would be a single layer of greenhouse grade 6 mil polyethylene rated for 5 years. ii) You can water by hand, or use a drip and trickle irrigation or sprinkler system. “When considering the combined effect of the modules across the curved roof, their typical combined output and average PCE were 105Wh and 0. Whilst rainwater can be collected in a greenhouse, it can’t in a polytunnel. 2 Solar tunnels. 91 postage. Acts as a mini greenhouse. Replacement Covers. co. 1M Wide Diffused Price per running meter. Chapter. Polytunnels. That said, this entry focuses far more on providing. 0 out of 5 stars $99. Description. With proper care, even a 5m2 garden tunnel will produce enough vegetables for the whole family. However, It is not uncommon for polytunnel plastic to last longer, with some reaching around 9 years. Step 9: Plant seeds. If you need your cover ASAP, view our pre-cut and ready-to-ship 6 mil covers, which ship out in 1 to 3 business days if they are in-stock. Our polytunnel is ideal for being used by professional growers, large garden spaces, garden centres and nurseries. XL Horticulture are suppliers of the worlds most advanced polytunnel polythene, smart films and spectral filter polythene and the worlds most energy efficient SUPER thermic polythene. Avoid construction grade material that has less strength. ie Web: type of plastic has light transmittance of 88%. 13mm poly pipe - 30 metres. US $3. 14 foot x 20 foot. Assembly required. Price: from £19. • All our tunnels have a 5 year polythene with an ultra violet light inhibitor, to protect from break down by the suns rays. We produce steel pipes and profiles - welded, also in galvanized version, as well as foil tunnels (professional and hobby ones), garage tents, gates and fences, made with non-welded method. Poly Tunnel Frame Size Range: Pro+ Range: 3m x 2m, 4m x 2m, 4m x 3m, 6m x 3m & 8m x 3m. This sounds. The average home garden plastic tunnel can be used to grow cool-weather crops from autumn into winter and from winter into spring. Then, drape a sheet of heavy duty polytunnel plastic and staple it to the bottom of your garden box. 5m. Optional Features: Single door/s (dependent on width of THK) Hortitech Handyscreen Cover in 50% or 70% block-out, allowing for easy application and removal for temperature control; Side-wall wind-up curtains (dependent on width of THK)Polytunnels consist of a plastic sheet, which is typically either clear, opaque, or green, stretched over a series of aluminum arches. I built 2 for around £30 in total. 57 Products. $27. Pull plastic over the tunnel. 4mm or diameter 38. 5mm to give a high strength-to-weight ratio. Read More (opens in external tab) White UVI. Transparent plastic cover: the tough, durable and transparent PE plastic cover protects plants while allowing nourishing sunlight to pass through, the cover can be easily attached to the frame with the included tethers and single-sided tape; The 8 roll-up windows have mesh netting to allow for cross ventilation and climate control. Poly, Net, and Fleece covers available. Lay out the poly lengthwise on one side of the high tunnel. Features a heavy duty reinforced polyethylene cover, two zippered roll-up windows, & doors. 98. 52 per bay plus freight. Poly Tunnel Garden Cloche 3m x 1m Net Tunnel 2m x 1m Net Tunnel 3m x 1m Net Garden Cloche 1. There are two ways to hold the plastic cover in place: pinning it to a wooden base rail which is fitted to the foundation tubes; or. These top quality covers have an ultra violet light inhibitor and are available in various widths by the linear meter. Polythene / Netting Fixing Systems. Or a combination of the above. They continue to become more popular each gardening year. UVI Five Year Tunnel Polythene Sheets We also supply new polytunnel covers for any tunnel or DIY structures. 50 / square meter. Farm Plastic Supply provides greenhouse plastic sheeting in many sizes and styles. Also commonly used to cover crawl. Diagram of a basic high tunnel. BRAND NEW 14FT X 30FT POLYTUNNEL KIT - HEAVY DUTY PROFESSIONAL GREENHOUSE - WD. 5m, 6m x 3. Free delivery and returns on eBay Plus items for Plus members. Our high tunnels help CSA’s and vegetable growers alike enjoy an extended season by getting their product to market sooner. A polytunnel usually consists of a metallic, plastic, or wooden frame, covered with polythene or other similar materials. It also enables interior climate control. This extra heavy-duty plastic can be used under concrete slabs as a vapor barrier and on top of freshly poured slabs as a curing blanket. The 10mm twinwall polycarbonate sheets form the main cover and are joined together by the Clear H sections. Rough weight of this Greenhouse Plastic is . Factory supply Low cost cheapest plastic tunnel greenhouse for sale. We offer a variety of Steel Hoops available in different widths. 66. This Polytunnel Greenhouse is a good product for cultivate seedling , optimum temperature , protect. Start by cutting the materials. “The plastic diffuses the sunlight and the insects don’t seem to like that light,” notes Sonja. The chamber dimensions for the 1808-28 shrink tunnel are 18"Wx 28"L x8"H. Polytunnel. Polytunnel Greenhouse Clear 25mm x 50m Polythene Repair Tape. Variety of applications: fabric greenhouse shading, vegetable garden shade, general shade cloth for home, pergola and garden. And whether polytunnels is home. GreenlifeGRO provides greenhouse solutions to farmers and growers to help shield their crops while increasing yields. Find high-quality stock photos that you won't find anywhere else. POLYTHENE IS. 0302 lbs per square ft. Learn more. Ferryman Polytunnels have been manufacturing high quality galvanised steel framed polytunnels, for the garden, allotment, commercially and schools, for over 35 years. 100+ bought in past month. Clamps, Clips and Fastenings. Dunno what a polytunnel is, but it sounds like the high-tunnel type of greenhouse or low tunnel. 99. You may wish to secure it with bricks or rocks. They are hoops covered with layers of fabric or plastic sheeting for protection from the elements and to better control the growing environment outside of the normal growing season. Creating a heat source inside a polytunnel. Plastic low tunnel/nursery tunnel, local-type greenhouses/bamboo greenhouse/tunnel, naturally ventilated green/ polyhouse, shade net house and insect proof net house were major practices/types of. AG Polytunnels is a family run business that has been designing and manufacturing agricultural and horticultural buildings for many years from their UK site in the Forest of Dean. Note that green polytunnel covers do not let enough light permeate through the tunnel. This low tunnel film is designed for use over small, vulnerable crops early in the season and is typically supported by wire hoops. 45m. 8m) wide so you have enough room to move around; 8ft (2. Once the triangle pieces were built, they were covered in polytunnel plastic. The compost is beautifully rich, dark and crumbly. Polytunnels: The Low-cost Option of Protected Cultivation. UV10 Polytunnel Greenhouse Polythene Plastic Horticultural Sheet Cover Foil PVC . With steel strength typically found only in commercial high tunnels, these 14-gauge tunnels are designed to give you greater peace of mind on stormy nights. 24" Diameter Plastic Hula Hoops (pack of 12) 3 Panel Weather Station 32 Inspirational Quotes 40 Benefits of Having a Pet 5 x 10 Sandbox Kit (Seats, Cover, Box) 50 Bird Species and the Sounds They Make 6 Foot Landscape Timber with Spikes Kids Need Playgrounds 8-Feet Diameter Kaleidoscopic Merry-Go-Round 8 Foot Spiral Tube Slide by Sii,. A more in-depth analysis of building a. Once erected they will be there for several years, so check out my tips before buying. Showing 24 of 117 products. Greenhouse Hoops,Grow Tunnel,Polytunnel,Garden Hoops Support Hoops 48 X 50cm Steel with Plastic Coated Support Garden Hoops for Greenhouse 6 Pack. Add to basket Super Cloche Brassica Cage with Butterfly Netting - 2. . . A polytunnel (also known as a polyhouse, hoop greenhouse or hoophouse, grow tunnel or high tunnel) is a tunnel typically made from steel and covered in polyethylene, usually semi-circular, square or elongated in shape. Or fastest delivery Tomorrow, 31 Oct. The triangles were pieced together and held in place with screws, starting at the bottom. These items can be purchased to extend or repair an existing First Tunnels Polytunnel, build your own Polytunnel from scratch or create a truly bespoke Pergola, Arch,. We supply UK manufactured polytunnels to farms, domestic growers, large garden centres and commercial users throughout the World. A simple way to do this is to secure a rope close to the edge of the. 5mm Wall Thickness Z35 High Tensile Galvanised Tube As used to manufacture all our Polytunnel kits. At JF McKenna we design, manufacture and supply a wide range of domestic and commercial polytunnels, with polytunnels to suit the small gardener to the professional grower. VonHaus Polytunnel Greenhouse – 3m x 2m Walk in Pollytunnel Tent – Heavy Duty Weatherproof 6m² Poly Tunnel for Garden and Outdoor – Steel Frame and Steel Frame Door – Insect Proof Roll Up Mesh Windows. The interior heats up because incoming solar radiation from the sun warms plants, soil, and other things inside. Choose from Poly Tunnel stock illustrations from iStock. 00. SPONSORED. There are two common approaches to keeping a polytunnel warm: Retaining daytime heat. 6 out of 5 stars 4. Step 8: Fill the greenhouse with soil. The Barkers have observed tunnel crops to be earlier by as much as three weeks, and their use boosts the farm’s output of Grade 1 fruit by about 20 per cent. a long, curved plastic structure that plants are grown under in order to protect them from the…. 1mm with a wall thickness of 1. It has a life expectancy of up to 10 years and comes with a 5-year warranty against UV degradation. 538 Reviews. The Advantages of D-Plant Polytunnels. Our tunnel house plastic roll-up door and ventilation windows with mosquito screens provide fresh air - regulating your tunnel house temperature and humidity to keep your plants growing well. Many people don't know the difference between PE tarpaulin and PVC plastic tarpaulin. As well as protecting from pests and cold weather, these strong, plastic garden cloches utilise rainwater collection reservoirs to make sure plants still receive water. Snapa Clear C Sections. Outsunny 2. Are you sitting comfortably with a cup of something nice, if not this is where the free tea bag provided with your First Tunnels Polytunnel will come in very. The base should touch the ground to allow maximum adjustment if needed. This is misleading. The 10mm twinwall polycarbonate sheets form the main cover and are joined together by the Clear H sections. V. It’s usually made from a semi-circular metal frame that spans the length of your garden. Copolymer poly is a low-cost material that is good for one season. Sturdy stainless-steel ribs support the cover, which is made of thick (90gsm) polyethylene with UV inhibitors so it can withstand extended exposure to the elements and can be reused for many seasons. 5m & 8m x 3. 50 per running meter. We are a family and owned company - we care about the products and services we offer you. a long, curved plastic structure that plants are grown under in order to protect them from the…. Easy away to roll up sides, staple plastic to a 1 x 1, will help you hold plastic in place. Here are some commonly used types of polytunnel covers: Clear polyethylene: This popular type of plastic polythene is commonly used for general purpose growing, this clear covering, is durable, UV resistant, and allows maximum light transmission, making it an ideal choice for growing a wide variety of crops. A high tunnel or hoop house, on the other hand, does have endwalls, doors, and sidewalls. 66 to AU $357. 2. SPONSORED. Adjust the plastic so it will create a tight seal on the roof and sides of your polytunnel. Ventilation. The plastic corner pieces for inserting the tubes are also the only way the wood is attached (based on the instructions. Thrivinger Garden Poly Tunnel, 310M Garden Grow Polytunnel Cover, Clear Plastic Sheeting Garden Diy Material For Greenhouse Roof Panels Foil Hothouse (Not Included Frame) 1. 99. In today's episode, I show you an EASY, CHEAP way to build a mini poly tunnel / Cold frame at home. Made with clear film with no slits or holes for maximum. To secure it at the bottom, you can either attach it to the base rail or bury it in the ground surrounding the structure. AU $104. 81 to EUR 89. 2m Wide Rolls of Clear Polythene Sheeting in Stock. Some possible remedies for high salts include having adequate. It’s best to go for one that’s at least 6ft (1. 99. Although primarily used by gardeners and commercial growers for growing vegetables, fruits, and flowers, they can also be used to house livestock, or for storage. . Snapa Clear C Sections. Larger items may be sent direct from supplier. Roll the plastic on the roof of the polytunnel. Get the best deals on Polytunnels Frames. 10. 5 out of 5 stars 4. Firstly, you need to ensure that you’re getting the right cover for your polytunnel in terms of thickness. Straight-sided poly tunnels often have a. Are you sitting comfortably with a cup of something nice, if not this is where the free tea bag provided with your First Tunnels Polytunnel will come in very. We offer a range of spare clamps, clips and fastenings for our full range of polytunnels. Excellent for repairing tears in polythene sheets on Polytunnels, Cloches, etc. Protect Your Plants. Add to basket. Please contact us to order. The Range. If cost is one of the main factors affecting your decision, polytunnels are far less expensive to install than greenhouses. Replacement polythene is sold by the meter so. Next, place the plastic hoop ends inside the poles. These are such as polyhouse but size and height are small.