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Polytunnels

Is A Polytunnel As Good As A Greenhouse?

Is A Polytunnel As Good As A Greenhouse

If you’re thinking about growing your plants indoors, you might want to check out a polytunnel. These structures are much warmer than outside temperatures, which is ideal for crops. However, you need to pay attention to proper ventilation to avoid overheating and humidity problems. Proper ventilation is important to ensure proper crop growth, and regular ventilation can be an easy way to keep your polytunnel cool and comfortable.

Materials used for a polytunnel

Polytunnels are generally made from polythene. This material is durable and will last for about eight years. The polythene covers are usually made from UV-resistant material that is easy to replace if they become damaged. Small tears in the polythene cover can be repaired temporarily with tape. However, it is better to find a replacement polytunnel cover if yours has ripped or split.

When it comes to frame material, aluminium is a common material. It is cheap, light, and easy to assemble. However, this material is not very insulating and heat escapes much more easily. It is also not a good choice for use in areas where heavy snowfall and strong winds occur.

There are several types of materials that can be used for a polytunne. Wooden structures are sturdy and can last for years when properly treated. Plastic structures are cheap, but they do not retain heat as well as wood frames do. Also, cheap plastic frames can break easily, so it is important to protect them from weather.

If you plan to build a large polytunnel, it is important to check with your local council’s rules and regulations. If the structure will be situated on a conservation area, national park, or an area of outstanding natural beauty, you might need planning permission.

Cost of a polytunnel

A polytunnel is a relatively cheap alternative to a greenhouse. They can be purchased second hand or for free from recycling groups. The cost of a polytunnel will depend on the size and quality of the structure. Traditional polytunnels often need reskinning every three to four years. This is because the material can buckle and twist. You’ll also need to replace the tubes. Eventually, the polytunnel can even blow away, requiring you to replace it completely.

There are several different types of polytunnels, each with its own unique features and benefits. Larger ones can be equipped with harvesting machines to automate the process of crop production. These are common in commercial polytunnels, and they have been used to cultivate soft fruits in the United Kingdom.

The cost of a polytunnel can vary dramatically, depending on the quality of the material used. A higher-quality polytunnel with UV stabilisation and anti-condensation polythene will cost more. Many suppliers of polytunnels also provide five-year guarantees. You can choose the type of polytunnel that best suits your needs and the space you have available.

A high-quality polytunnel will keep your plants healthy and alive even in winter. The material used in these structures is double-layered polythene and reinforced with nylon mesh. The extra material makes it more resistant to weather and is more insulating. The downside is that you won’t be able to get a lot of light through the polytunnel.

Ventilation problems in a polytunnel

Polytunnels need to be ventilated effectively to keep plants healthy. Proper ventilation is crucial for photosynthesis, which is the process by which plants take carbon dioxide from the air and convert it into energy. Plants need plenty of fresh air to survive, and the right ventilation is essential for this process. To combat ventilation problems in a polytunnel, you can install ventilation fans and adjust your watering schedule accordingly.

Insufficient ventilation can cause disease. Proper ventilation will prevent disease from spreading and will reduce the risk of moulds and mildews. When moisture is high, the growth of disease-causing bacteria is accelerated. Poor ventilation also encourages mould and mildew to spread.