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Is A Polytunnel Better Than A Greenhouse?

Is A Polytunnel Better Than A Greenhouse

Whether you want to grow vegetables, fruit or flowers, you need a place to protect them. A greenhouse or polytunnel offers an ideal solution for this. It will keep your plants warm and dry while providing you with plenty of ventilation options. You can choose from different models to find the perfect one for your space.


Whether you are growing food for yourself or your family, polytunnels can help you produce large quantities of fruit and vegetables. They provide excellent growing conditions for plants, while protecting them from extreme weather conditions. Polytunnels are also a cost-effective alternative to greenhouses, and they can be moved from one growing site to another.

The cost of a polytunnel will depend on the size and construction of the polytunnel. Larger, commercial polytunnels are more expensive than domestic ones. The cost of a polytunnel ranges from a few hundred dollars to a few thousand dollars.

The cost of a polytunnel can be as little as one-third the cost of a concrete structure. This is important because the weight of a structure is a major factor in carbon emissions.

Heat retention

Having a polytunnel is a great way to grow vegetables. You can start seeds early, extend the growing season and reap the rewards of a bountiful harvest. However, you will need to take measures to keep your plants happy and healthy. For the best results, make sure your polytunnel is well insulated and has a good ventilation system.

If you want to save money on heating your polytunnel, you can use a variety of methods to do the trick. This includes the use of horticultural bubble wrap. It’s an inexpensive solution that will keep your plants happy in the colder months. It also prevents cold draughts from entering your tunnel.

Another low cost method is to build a ground to air heat exchanger. This allows you to make the most of the sun’s energy by collecting it during the day and transferring it to the soil.

Ventilation options

Whether you own a polytunnel, or are considering purchasing one, there are many options for ventilation. These vary according to the type of polytunnel, and the location of the polytunnel. The benefits of good ventilation can be substantial. It helps keep the polytunnel healthy, prevents disease and mould, and ensures a proper air flow.

One of the most common forms of ventilation is door ventilation. The most important benefit of door ventilation is that it allows fresh air into the polytunnel. This can help the plants grow healthier. However, it is not always possible to keep doors open during the day. Door ventilation is also not very effective with only one door.

Another form of ventilation is the roof vent. This is a simple pull cord mechanism that removes excess heat without opening the doors.


Buying a polytunnel can be an extremely cost effective way to protect your garden from the elements. However, there are several important factors to consider. Investing in a quality polytunnel will ensure you get the best value for your money.

Firstly, consider the size of your garden. A polytunnel can be a good solution for growing different types of vegetables, but you will need a lot of space. It is also important to consider the materials used to build a polytunnel. Cheap imported polytunnels are usually made from poor quality materials and are not suitable for protecting plants.

Secondly, consider how durable the polytunnel is. If you are buying a new polytunnel for your garden, you will need to make sure it is made from high quality steel. Ensure the material is galvanised to BS EN ISO 1461 standards for extreme durability.


Adding a polytunnel to your garden can give you a number of benefits. These include an increased growing season, increased heat and humidity, protection from light frost and extra space to grow a variety of different crops.

Polytunnels are an economic way to cover large amounts of land. They allow you to grow vegetables in a warm environment and then store them over the winter months. They also help prevent disease and pests from spreading. They are also a simple replacement for glasshouses.

There are many different types of polytunnels available. Some are compact, and others are large and cumbersome. They are also easy to erect and use.

Depending on the type of polytunnel you choose, you can expect to enjoy many years of uninterrupted use. You can also control the weather, and manage pests. This can save you money and contribute to a more sustainable lifestyle.