At Premier Polytunnels, we manufacture high quality commercial and garden polytunnels, polytunnel accessories, cloches, fruit cages and sheep housing. Many people don't know the difference between PE tarpaulin and PVC plastic tarpaulin. My polytunnel is about 52ft long and 10ft high in the centre. Agriculture farming tunnel hoop house. Sheet The Polytunnel Correctly. I was excited to erect this as I have neve. An 8x6’ greenhouse for example will look great in a small garden. Versatile Polytunnel Frame Only We understand that nothing lasts forever. Min Order: 400. In this article, we will discuss the factors that impact the longevity of polytunnel plastic and how it can be recycled. (Drawn by Vince Giannotti) Figure 2. Cold Frames are smaller polytunnels that protect plants from frost and cold weather. Be sure and leave at least one end of the poly tunnel open so you can reach in with a watering can and give the plants a drink as needed. Factory supply Low cost cheapest plastic tunnel greenhouse for sale. Lightweight, sturdy and with walls constructed from polyethylene the 3m Poly Tunnel has been designed to give your plants, herbs and seedlings a localized micro climate of their own. 30ft (9. 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. Christmas. Be aware, if other suppliers don't state the wall thickness it's because they don't. 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. In this video we. Dunno what a polytunnel is, but it sounds like the high-tunnel type of greenhouse or low tunnel. Buy Online – A wide range of polytunnel parts, spares & add-ons for polytunnels. PLASTIC PVC PE GREENHOUSE GROWHOUSE COVERS & FRAME GARDEN PLANT GROW STORAGE BAG. £. 17. 0 out of 5 stars 1 £4. Broccoli, squash, and tomato are moderately salt tolerant. Find high-quality royalty-free vector images that you won't find anywhere else. Anti Hot Spot Polytunnel Greenhouse Tape. We are a family and owned company - we care about the products and services we offer you. 66. Search from Poly Tunnel stock photos, pictures and royalty-free images from iStock. The Range. 50 – $ 200. SPONSORED. You may wish to secure it with bricks or rocks. High Tunnel Low Cost Single Span Plastic Green Houses For Agriculture , Find Complete Details about High Tunnel Low Cost Single Span Plastic Green Houses For Agriculture,Greenhouse Plastic Film Greenhouse,Single-span Greenhouses,Agriculture Green House With Climate Control System For Greenhouse from Single-Span. 81 to EUR 89. 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. £21. The 10mm twinwall polycarbonate sheets form the main cover and are joined together by the Clear H sections. 0302 lbs per square ft. A polytunnel is a tunnel-like structure that first appeared in the 1960s. I have been gifted this tunnel from First Tunnels, one of the leading companies in domestic and commercial tunnels. Three widths available, all with a length of 10m. £34. UV10 Polytunnel Greenhouse Polythene Plastic Horticultural Sheet Cover Foil PVC . These include foundation tubes, steel tubes, complete accessory kits, specialist clamps and basic fixings & fastenings. Polythene repair tape is excellent for repairing tears in polythene sheets on polytunnels, cloches and can also be used to repair cracked panes in greenhouse. 1. Unfortunately the best 'glue' is tape. Step 9: Plant seeds. It can easily top 40 degrees C in there most summer days. Then, drape a sheet of heavy duty polytunnel plastic and staple it to the bottom of your garden box. Polytunnels are so much better value than greenhouses. Logged. Super Cheap Hoop House for Winter from QT’s. Read More (opens in external tab) White UVI. Looking for greenhouse supplies & products in Australia? We're the market leader in the manufacture and supply of quality greenhouse products - Call Today!4-Tier Green 160cm Greenhouse - Polytunnel Poly Plastic Garden Plant Vegetable Mini Growhouse Tent Polyethylene Cover - By Harbour Housewares. Mercia 6 x 6 ft Wooden Apex Greenhouse (0)The Advantages of D-Plant Polytunnels. Best End-Wall Greenhouse Plastic: Clear 12 mil Woven Greenhouse Plastic. Polytunnels are a type of greenhouse that are used to grow plants in a controlled environment. One low-cost method of accomplishing this is to use low tunnels. 4. Material. Minimising wastage and maximising. . Allows for planting about 10 days earlier than without a cover. com offers 2,024 polytunnels products. Polybags average a thickness of 1-6 mils. First – What Exactly Is A Polytunnel? A polytunnel is best thought of as a frame for your garden. Placing a single path down the center of a polytunnel between two beds when it is wider than eight feet can make it very difficult to access the backs of the beds. We also offer all-in-one greenhouse kit solutions. 1. 2m, 11. The plastic was heated and stretched over the triangles, then tacked down at the edges. Iwinna Polytunnel Greenhouse Clear Polythene Repair Tape (25m x 100mm) 233. Sorry but it's true. . Nationwide Delivery CALL US: 087 2456553 or 087 9417600 or email: yvonneronanegan@gmail. Shade Polytunnel Polythene Film Replacement Cover 11. 45m x 3m x 0. 25m Net Garden Cloche 1m x 1m. Tierra Garden 50-5000 Haxnicks Easy Poly Tunnel Garden Cloche, Giant, Protects Plants and Flowers ; WARMTH AND MOISTURE – Garden before spring begins!. JFM Polytunnels. Where outdoor structures are concerned, they can eventually succumb to the effects of adverse weather conditions. 3. We offer a variety of Steel Hoops available in different widths. These are such as polyhouse but size and height are small. Some vegetable crops are much more sensitive to soluble salts than others. The base should touch the ground to allow maximum adjustment if needed. 99. They're semi-circular structures with a door at one or both ends. This way, they enable you to grow plants that would normally flourish in more temperate regions, to grow things out of season, or to protect plants that wouldn’t otherwise survive outdoors due to bad weather. Components and Accessories. Add to basket. Preparing Your Polytunnel Interior. Axiome 10mm Sheets tend to be the most popular thickness of polytunnel plastic as they offer the right mix of flexibility and strength. 00. Fig. 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. 4. Lay out the poly lengthwise on one side of the high tunnel. 99. 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. Steel Diameter: 28mm. Attaching greenhouse plastic to metal framing is very easy, however, it will require a few additional pieces of hardware in order to firmly connect the plastic for any duration of time. Basic Principle: Build a wooden frame using 2 x 4 or 4 x 4 boards to the size of your Polytunnel’s base (so that the base frame rests in the center part of the wood throughout) Concrete corner and center stakes onto the ground, onto which you can fasten the frame. Investing in anti-hot spot tape and installing this before placing the plastic cover on your Polytunnel can be well worth your time and effort. 27ft (8. This helps protect the structure from rain and snow. . 4. £39. Now, I have added wood pallet shelves as another vertical gardening technique. Polytunnels first appeared in the 1960’s once the plastics industry managed to produce reliable wide width polythene sheeting. It’s quite simple. 86% on a cloudy day. You will get some condensation, but you will need to water your plants as well. 16 shipping. Polycarbonate sheets are used to build polytunnels primarily because of their unrivalled strength which makes them suitable for cold bending over the tunnel radius. A&A Green Store Greenhouse Polyethylene Cover – Highest Light Transmission Polytunnel Plastic Sheeting. Made from 140 g PE fabric, with a galvanised steel metal frame, this tall 6 x 3 x 2 m polytunnel can cover a large flowerbed or vegetable patch. Tomatoes, garlic, zucchini, broccoli… are ones of the most popular crops can be cultivated in a s mall polytunnel. We sell by full sheet, half sheet, or cut to size. 00 Sale. Polytunnels Direct is an Irish Company and Fully Insured. Just keep in mind the cost associated with doing so. 60-$5. A quality tunnel house will also shield your plants from inclement weather, pests and predators. Cold Frames are smaller polytunnels that protect plants from frost and cold weather. 00. Domestic polytunnel. In today's episode, I show you an EASY, CHEAP way to build a mini poly tunnel / Cold frame at home. To calculate the size of polythene or net sheet needed for your replacement polytunnel cover, please enter the information to the right and click 'Calculate'. £22. This is the most common plastic used for greenhouses. This listing is exclusively for the cover. 2 out of 5 stars $14. Low tunnels are temporary structures that are approximately 4 feet tall and 3 to 6 feet wide. Average cost. Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" and the theory of "quality the basic, trust the first and management the advanced" for Poly Tunnel Plastic Sheeting, Green House. We can provide you with presized rolls of clear UV resistant exterior poly and anti-condensation interior poly coverings. Or a combination of the above. This can have many benefits for both edible and ornamental crops, such as enhancing the fragrance, taste, colour, earlier harvesting and longer post-harvest shelf life. To calculate the size of polythene or net sheet needed for your replacement polytunnel cover, please enter the information to the right and click 'Calculate'. 00. Chat now. However, It is not uncommon for polytunnel plastic to last longer, with some reaching around 9 years. Generally speaking, poly bags are made from polyethylene, one of the most popular types of plastic packaging formulations today. Less demand for watering. 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). 5 out of 5 stars 430. Crops Suitable for Polytunnels. Polytunnels: The Low-cost Option of Protected Cultivation. 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. Like the thermal anti-drip option, this polythene is available to buy by the metre. Allow 2-6 working days for receipt of goods. They can fit within many gardens and other growing spaces while still offering a good amount of space for growing food. Poly Tunnel Frame Size Range: Pro+ Range: 3m x 2m, 4m x 2m, 4m x 3m, 6m x 3m & 8m x 3m. A polytunnel usually consists of a metallic, plastic, or wooden frame, covered with polythene or other similar materials. Choose from Poly Tunnel stock illustrations from iStock. 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. The stones will absorb and retain heat from the sun and slowly release it through the night the night, therefore keeping. 5m is commercial Polytunnel insulation used throughout the country. A 10ft wide polytunnel is a popular choice for home gardeners and allotment holders. 5 out of 5 stars 437. Fasten the Polytunnel frame to the wooden frame. Feel free to modify the length as you see fit. Garden Grow Tunnel 6x3m. 148m Mini Greenhouse (2) £220 . View More. Polytunnels are basically large-scale cold frames, giving growers more area to protect to extend the growing season. Patch holes and rips in Single OR Double Layer Greenhouse Plastic our FREE High Tunnel Hoop House Winter Maintenance Gu. 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. 40 per running meter. 0 out of 5 stars $99. 100s of help & advice articles. Hobby polytunnels without ventilation are known as single-vegetation. On Sale at Best Prices. High quality Polytunnel Sri Lanka Colombo Steel Frame Greenhouse Single Span from China, China's leading Polytunnel Steel Frame Greenhouse product, with strict quality control Single Span Steel Frame Greenhouse factories, producing high quality Sri Lanka Colombo Single Span Greenhouse products. The word cloche comes from French and means ‘bell’, a reference to their shape. 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. 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. £40. If cost is one of the main factors affecting your decision, polytunnels are far less expensive to install than greenhouses. Mercia 1. $55. Available polythene widths. Item. Not bad considering. Once you feel like growing in the polytunnel, you might want to come up and grow more. Allow at least 1 to 2 feet of space in between staples and screws. 12 foot x 20 foot. Common Greenhouse Plastic Attachment Hardware for Metal Framing. Unit. Polytunnels often have lots of headroom so are ideal for cordon crops such as tomatoes and cucumbers. Minimising wastage and maximising your yield potential, our industry-leading growing systems also enable you to forecast with greater accuracy, and so build strong relationships with customers. For those wanting a greenhouse plastic with a little bit more durability, 9 mil woven greenhouse plastic is a great option. Such greenhouses are known to sometimes require. . Poly-tunnel: The nursery is covered with a plastic film or sheet to form a tunnel. 45m. 99. 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. To cover the metal frame of your polytunnel we supply hard wearing polythene polytunnel covers manufactured in the UK with the UK climate in mind. Greenhouse plastic to suit size of Tunnel House or Polytunnel; Hortiweave roll-up door curtains. For the most part, are clear or transparent bags made of plastic most commonly used for packaging and shipping specific consumer products. 99. 2m Wide Rolls of Clear Polythene Sheeting in Stock. 50. 1m & 14m Widths. It is ideal for growing many vegetable crops such as tomatoes, peppers, cucumbers, and melons. . If you're interested in erecting a polytunnel your. Hobby polytunnels can accommodate growing surfaces from 50 to around 400 square feet. 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. Use a forceful jet of water from your hose to clean the outside of your polytunnel or greenhouse. Mano Mano. 4. A 24 to 36-inch (60-91cm) tall plastic tunnel can be used to grow broccoli, Brussels sprouts, and cabbage. 5cm tubes were too thin for my exposed site. With a mini polytunnel protecting your crops, you will also find that you add at least 6 to 8 weeks of growing time to your garden. £83. . 00 (inc. 18. co. Supported by 6mm fibreglass poles, the 3m Poly Tunnel is easily folded away when not in use, and includes 3 x openings (for easy access. Grow a variety of flowers, plants and vegetables in this 3x2 metre polytunnel by Garden Grow. Kumar Sivala. 5m, 6m x 3. A polytunnel usually consists of a metallic, plastic, or wooden frame, covered with polythene or other similar materials. Greenhouse Garden Polytunnel Grow Tunnel Vegetable Allotment 0. 69 postage. com First – What Exactly Is A Polytunnel? A polytunnel is best thought of as a frame for your garden. Small Poly Tunnel from One Hundred Dollars a Month. Description. It is very important to avail of a soil free from pathogens and pests. Our innovative technology allows for maximum efficiency with minimal environmental impact. Width: 200cm. If fencing in your garden isn’t an option, using polytunnels to protect your veg is the next best thing. That’s Aussie smarts, used to create products for unique Aussie conditions. Greenhouses and polytunnels: make the right choice. 24′ Wide Greenhouse → 38′ Wide Plastic; 30′ Wide Greenhouse → 44′ Wide Plastic; 40′ Wide Greenhouse → 52′ Wide Plastic; CUSTOM GREENHOUSE COVERS. However, It is not uncommon for polytunnel plastic to last longer, with some reaching around 9 years. 99 4. Base Plates. Can be retrospectively fitted to an existing polytunnel. The polythene we stock is from a range of 'Visqueen' films that are manufactured using the latest technology, binding three separate layers of polyethylene together to produce an extremely strong and durable cover. I built 2 for around £30 in total. Sheeting a polytunnel correctly and making sure that the plastic is taut and as crease-free as possible will mean that the plastic will last far longer than it would do on an improperly installed polytunnel. Constructed using powder coated steel frames covered with a waterproof PE protector, this polytunnel is durable and easy to construct. 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. It is ideal for growing many vegetable crops such as tomatoes, peppers, cucumbers, and melons. This helps us ensure that we are providing the structural solutions that are built to withstand the worst. Great fillable sandbags for. Polytunnel covers are always a major aspect of any farmers or green fingered gardener’s horticultural range. In fiber optic terminations, glass or plastic fibers are bonded to precision ferrule connectors (FCs), also described as fiber channel connectors, and polished for splitting or connecting two fibers together. AU $30. Was: £299. 6 Mil Greenhouse Plastics. 2: Closed plastic poly tunnel. The main types of poly tubes are high density polyethylene (HDPE) and. Our calculator selects a width of polythene that spans the distance over polytunnel hoop (C) adding excess to accommodate enough material for burying in a trench (additional 2m) or fitting to base rails (additional 1m). 1 m plenty for the door and head height. 3m Long x 33mm OD Z35 High Tensile Galvanised Tube. In simple terms the diffused polythene helps trap and preserve higher temperatures inside the structures for much longer - in heated structures, a 15-20% fuel savings can be achieved. (Photo by Wayne Whitmore) Figure 3. 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. 45m. Snapa Clear C Sections. They allow through the whole spectrum of sunlight, but trap the (infra-red) radiation that is reflected from the earth or plants (plus the warmed air is prevented from mixing. organic fruit and veg straight from your poly tunnel to your kitchen. 10m - €17. Gardman 7624 poly-tunnel with reinforced cover & Windows. From our polytunnels manufacturing facility in Navan County Meath, we produce a vast range of polytunnels and polycarbonate greenhouses in a selection of sizes from 6ft wide to more than 30ft wide and to any length you require. It is best to do this on a calm day. Keep in mind, the longer the polytunnel, the more it will need to be braced for additional support. 1 - 2 Day Delivery Top Quality 30-Day Returns . Height/Length: 200cm. The 6 mil plastics are often cut-to-order, but there are often a variety of Pre-Cut 6 mil sizes available. 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. Polytunnels are wonderful structures and good value compared to greenhouses. Mercia 8 x 6 ft Traditional Apex Greenhouse Combi Shed (0) £1,300 . Min Order: 10000 kilograms. Polytunnel cover provides a safe and secure environment for fruit, vegetables and plants to thrive in and grow into. 50 / square meter. $50 Hoop House from The Door Garden. A polytunnel (hoop greenhouse) is great for gardeners that can’t afford a real greenhouse. The use of Base Rails is a very popular option for covering a polytunnel. This heap had 3 year old compost on the bottom, two year old on top. The 1808-28 shrink tunnel is an ideal fit for the 1622 L Bar sealer or the 18"x18" L Bar sealer. Snapa Clear H Sections. Poly tunnel plastic piping? 18-11-2008, 08:43 PM. The structure provides physical protection of the crops against winds, rain, snow and other natural hazards. Different shapes and sizes of polytunnels can be built, to create microclimates suited for different types of vegetation. Instead of a rope system, the structure is secured by metal base and hip board, side-braces, and purlins. £13. Protecting crops from pests and adverse weather, our polytunnels optimise climate conditions for your specific environment and needs. We are the leading polytunnel manufacturer in the UK and, by buying direct from ourselves, you get a far higher quality product at a much lower price compared to buying from a high street or. 3m Long x 33mm OD Z35 High Tensile Galvanised Tube. Cover the frame with plastic sheet material. 3m Long x 33mm OD x 1. I Bar Sealer - A machine consisting of one heated side used to seal off and enclose products within a flexible plastic film. And whether polytunnels is home. To successfully install your poly tunnel cover you will want to purchase four main components: Axiome 10mm Polycarbonate Sheets. You can choose from eight standard widths with the length starting from 10ft (3m). 100+ bought in past month. 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. CHECK LATEST PRICE. 5 out of 5 stars 78. They are also a great way of trying your hand at growing vegetables, as well as introducing children to the joys. Hoop Houses polytunnel uses a series of hoops to support the plastic covering. 00 - A$1,320. GiantexUK Mini Greenhouse, Steel Frame Poly Tunnel Growhouse with PE Cover & Roll-up Zipper Door, Small Garden Green House for Plants. First, attach the inside to the side. 19Polytunnel Ground Anchor Kit. Infrared Shrink Tunnel . Super easy to set up, they come with zip down and roll. 45 per running meter. Details on how to measure your tunnel below. Retaining day time heat is essentially providing insulation and draft proofing to keep warm air inside the polytunnel. 00. 90. 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. Also used to repair cracked panes in Glasshouses. Our polytunnels are some of the strongest and most durable garden tunnels available in Ireland and the UK. Our tunnels are made from polyethylene for longer life and better performance. Plastic Sheet Covered Single Tunnel Greenhouse $10. While Spring Wire Poly Lock Channel is very easy to use for securing greenhouse plastic, the channel itself must first be attached to the metal framing of your structure at any points you want the plastic to be secured. Shade fabric is used for heat and sun protection and creates a cooler environment for your plants. No wonder it has made it to the top of our list of the best polytunnels for an allotment or garden on a budget. 00. 5m Polytunnel Cloche Mini Garden Greenhouse SeedlingCloches are glass or plastic domes or square structures that fit over individual plants. It features 4x retractable windows that allow light in and a reinforced steel frame for additional stability. Polytunnels often have lots of headroom so are ideal for cordon crops such as tomatoes and cucumbers. Quality construction & materials will last many seasons. Our polytunnel is ideal for being used by professional growers, large garden spaces, garden centres and nurseries. polytunnel definition: 1. 4 Options From £29. 66 to AU $357. Firstly, you need to ensure that you’re getting the right cover for your polytunnel in terms of thickness. 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. £219. UV5 Poly Tunnel Greenhouse Polythene Plastic Sheet Cover Foil Horticultural PVC. Peppers and aubergines can also be grown up strings if you wish, there is a tradeoff between space requirement and extra work. Snapa Clear H Sections. Constructed using powder coated steel frames covered with a waterproof PE protector, this polytunnel is durable and easy to construct. Cover Films for Growing Tunnels. Premier Polytunnels use clear UV resistant polytunnel Repair Tape with high tack acrylic adhesive on one side. Straight Side: 3ft 6in. Poly tubing is a highly flexible, lightweight, and durable tubing that is produced from polyethylene, polypropylene, and polyurethane, polymers that are made from the polymerization of ethylene. You may need to long-handled brush to reach up and remove stuck-on dirt. 4-Tier Green 160cm Greenhouse - Polytunnel Poly Plastic Garden Plant Vegetable Mini Growhouse Tent Polyethylene Cover - By Harbour Housewares. 5 out of 5 stars 5. Plus when you need to open to weed or water and harvest just roll plastic up to. They continue to become more popular each gardening year. 6 out of 5 stars 4. 77. Greenhouse plastic to suit size of Tunnel House or Polytunnel; Hortiweave roll-up door curtains. Advantages and benefits of our greenhouse plastic: Our greenhouse is U. Super Cloche Strawberry Protection Cage with Bird Netting - 2. Add to cart. AU $31. After the plastic was placed over the triangles, the greenhouse was ready to assemble. Plastic Attachment. Both cost effective and easy to construct, a polytunnel is essential to any gardening enthusiast. Replacement Covers. The average home garden plastic tunnel can be used to grow cool-weather crops from autumn into winter and from winter into spring. US $3. 3m Long x 33mm OD x 1. £219. This black/white polytunnel polythene film is an 800 gauge/200 micron film designed for polytunnels that are used as animal housing or storage units. SPONSORED. 5cm tubes were too thin for my exposed site. 5mm Wall Thickness Z35 High Tensile Galvanised Tube As used to manufacture all our Polytunnel kits. 5m & 8m x 3. Distance Over Hoop: 19ft 10in. Build an easy cannabis polytunnel: Poles and hoops. It can even last up to 10 years in some cases. 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. 98. Protect Your Plants. 19.