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Do Polytunnels Need Ventilation?

Do Polytunnels Need Ventilation

Whether you are planning on building your own polytunnel or if you have already acquired one, you will need to know how to get the most out of it. One of the most important aspects of polytunnels is ventilation, and there are a number of ways to achieve this. In this article, we will discuss the benefits of ventilation, as well as how to build your own.

Build your own

Keeping your polytunnel well ventilated is a great way to keep your plants healthy and prevent diseases from developing. Proper ventilation also keeps pests at bay. You can install side vents to increase the ventilation of your polytunnel and open the doors to allow fresh air in.

Polytunnels can be a great garden investment if you are trying to extend your growing season. You can grow multiple crops to maturity in a polytunnel. Many plants are more productive inside than outside, especially annuals. Polytunnels can also be used for plants that can’t be grown outside, such as asparagus and globe artichokes.

When you decide to build your own ventilation for polytunnels, you’ll need to know how to determine the size of the tunnel. The length of the tunnel will determine the ventilation, as well as the width and height.

Side ventilation

Whether you are a seasoned polytunnel grower or just getting started, it is essential to have sufficient ventilation. Having adequate airflow reduces the risk of disease, fungi, mildews and moulds. In addition, airflow improves the crop’s condition and helps to prevent accumulation of heat at the top of the facility.

One of the more popular ways to provide adequate ventilation is by installing a door. However, while a door may offer the best ventilation, it may not be the best for your specific needs. For example, a single door may not offer the most effective ventilation, and a double door may be necessary. Likewise, a door may not have the best visibility for allowing air to circulate around the facility.

Another method of providing adequate ventilation is by using a roll up curtain. This is a small, yet effective, device that uses a gearbox-operated drive tube to roll a polythene curtain down.

Humidity control

Getting proper humidity control in polytunnels can have a big impact on the way plants grow. It also makes it easier to water them in a systematic way.

Controlling temperature is also essential to humidify the polytunnel. The proper temperature will also help your plants grow better.

A humidity sensor can provide you with an accurate measurement of humidity in your polytunnel. The best humidity level is found around 50 to 70%.

Proper ventilation is also important. This will keep the air flowing and also prevent secondary condensation.

Keeping the polytunnel doors open can help control climate. Fans are also used to increase ventilation.

Spraying water is a useful method to humidify your polytunnel. This is especially important for growers using plastic polytunnels.

Temperature measurement

Having the ability to measure temperature and humidity in a polytunnel provides a valuable tool for the agri-environmental sector. It also provides an alternative to respiration chambers, which are used to monitor methane emissions from animals under natural grazing conditions.

In the UK, polytunnels have been used to monitor CH4 emissions from ruminants under semi-normal grazing conditions. The data gathered were used to provide a starting point for mitigation strategies.

One of the advantages of this type of structure is the ability to quickly move crops from one patch to another, when forage has been depleted. Another advantage is that the soil in a polytunnel is kept warmer, which allows for earlier sowing of spring vegetables.

Polytunnels also reduce the risk of damage from external bad weather. The heat and humidity inside the tunnel are controlled to ensure that crops grow in healthy conditions.

Cleaning the cover

Keeping the cover of polytunnels clean and well maintained is important for the health and well being of your plants. Algae can build up on the cover of the tunnel, reducing the amount of light that it allows through. In addition, it can attract pests. They eat plants, stalks, and roots.

To clean your polytunnel cover, it’s important to use a soft bristled brush. The soft brush helps to clear any buildup of dirt or debris. It’s best to clean the cover of the tunnel before the main growing season starts. This way, you can give your plants a chance to get off to a fresh start.

You can clean the cover of your polytunnel with a hose jet, a hose pipe, a garden cleaner, or a soft brush. Before using chemicals, check that they are plant safe.