While greenhouses and polytunnels are similar in some ways, there are some key differences between the two. High-tent polytunnels can accommodate taller plants. Both greenhouses and polytunnels require a foundation. In addition, greenhouses can be more expensive than polytunnels.
They are resistant to UV damage
Polytunnels are very resilient to the harmful effects of UV rays. The polythene covers used for these structures are UV resistant, and they do not tear or split. This means that they are ideal for mushroom houses, livestock shelters, and just about any type of storage structure. If you’re not sure how much polythene you’ll need, try using an online calculator. By entering the length and height of your tunnel, you’ll get an estimate of the amount of material you’ll need to cover your polytunnel.
Polytunnels can be cleaned easily with a sponge, warm water, and dish detergent. You can also use specialized pressure bottles to wash the walls. Cleaning the walls regularly will make the polytunnel much more hygienic and reduce the risk of harmful algae and mold growth. Make sure that you ventilate the polytunnel regularly as well – most come with movable windows.
Polytunnels are made from green or white polythene, which is highly resistant to UV damage. These structures are usually used for growing vegetables, growing mushrooms, and storing livestock. You can choose between different kinds of polytunnels, depending on your budget and the size of your space. For example, a simple mini polytunnel can cost about $60 and measures 250x200x200cm.
They require a foundation
The first step in setting up a polytunnel is to lay a foundation. This can be in the form of a concrete or timber block. It will then be secured to the ground by using the foundation tubes. The foundation tubes should be six feet in length and driven into the ground at a depth of three feet.
You can save hundreds of pounds by building your own polytunnel. You just need basic DIY skills and some willing helpers. If possible, choose a day when it is warm enough to work outside, as the plastic will be pliable and easier to stretch over the frame. Make sure that your site is level before you begin and you may need to use hedging or fencing if it’s in a very exposed location.
The size of your polytunnel is important as a polytunnel over three or five meters tall will block out light from neighbouring gardens. If you intend to use your polytunnel permanently, it is important to make sure it is well-situated, away from trees. Depending on the size and construction, a polytunnel can cost anywhere from fifty to one thousand dollars. If you’re looking for a small one, you can try a cheaper model, but for a larger one, you can try to invest in a higher quality polytunnel.
They are cheaper than greenhouses
Polytunnels are cheaper to build than greenhouses and can be constructed using a metal or plastic frame. They can be covered in polyethylene film and polycarbonate. Some types are also available with glass windows. The cost of building a polytunnel is less than the cost of glass greenhouses.
You can purchase polytunnels online or from garden centres. Typically, you can find them for less than a thousand pounds. You can also find them on freebie websites and classified ads. You may need to get planning permission if you want a large structure.
When deciding on which type of polytunnel to buy, you will need to consider the type of produce you wish to grow. Many polytunnels are designed for large volumes of produce like vegetables and fruits. Greenhouses are used for more exotic plants. When it comes to growing vegetables, you should consider the type of soil and the climate conditions in your area.