An improved environment will help to produce an increased yield of higher quality crops. All of these elements ensure that your plants have the best environment possible.

  1. Light Diffusion
  2. Ventilation
  3. Temperature
  4. Humidity
  5. Strength

Circumstances and environment influence most decisions to purchase a greenhouse, glass house or polytunnel. Nevertheless, there are a number of other factors to be considered to ensure that the most suitable greenhouse is purchased. To help focus on what is most important, prioritise the requirements. Make a list, numbering items from one to 10. Use this list as the basis of research and collate the relevant information.

What is grown and how it is cultivated are key factors in choosing a greenhouse. Most people grow a range of crops and rotate what they grow, and this is where a Keder Greenhouse stands out from all the others. Not only strong, durable and long lasting, it manages the key elements so that the crops grow efficiently and with ease.

So, to the 5 key reasons.

Light Diffusion

Plants and crops need light, but can be very sensitive to constant direct sunlight. The Keder system ensures maximum light transmission while ensuring plants and crops are protected from direct sunlight, infact the Keder system aloows a greater transmission of light compared to many other material used for greenhouses and polytunnels.


Doors, windows, rear vents and roof vents. All are tools that the gardener or small holder can use to manage ventilation to ensure an effective through flow of air in the greenhouse. The can also be automated, with the easiest option being a waxed filled rear or roof vent. Adjustable so that the gardener or small holder can set at what level the vent opens and closes to ensure their plants and crops have the very best environment.


This is where is get a little technical, but none the less very interesting. There are 3 factors R-value (Thermal Resistance), U-value (Thermal Conductance) and k-value Thermal Conductivity), click here to see a data sheet.

  • R-value, the higher the better. Keder is 1.7
  • U-value, the lower the better. Keder is 0.5
  • k-value, the higher the better. Keder is 27

Combine these factors and the outcome is that the Keder cladding system is that it is far superior than other materials used in greenhouses or polytunnels.


This is a combination of 3 above points. dealing with light, ventilation and temperature means that humidity is very easy to manage dependant on what you are growing and what levels of humidity are required.


This is one we are quite proud of. Wherever you live, whether city centre location, remote Yorkshire Dales, remote Scottish Islands, exposed hill top or coastal location Keder Greenhouses stand up to the elements, do not just take our word for it, listen to our customers, read some of our case studies.

In addition, as per the photos at the top of this articles, the Keder Cladding system is strong, stong enoughtr for one our our installation team to stand on. Not only does this show the strenght of the cladding system but also of the Keder Greenhouse design.

There are of course many other benefits to owneing a Keder Greenhouse.

For the grower, it is all about flexibility and managing crops. Of course, the quality, and the durability, of the greenhouse and its component parts will be of significant benefit when it comes to its longevity. Managing crop rotating and growth cycles will also help to maximise yield and quality. Flexibility to adapting to changes within the growing space and move things around to accommodate new and additional crops within the greenhouse is key. The right greenhouse will last many many years, with minimal maintenance so make sure to choose the right one!

Now that a decision has been made, the ground needs to be prepared, ready to receive the greenhouse. This is best discussed with the supplier to prevent problems occurring further down the line. After all, the benefits of a good, correctly installed greenhouse are not only durability and low maintenance, but the ability to withstand extreme weather conditions such as heavy rain, strong winds and thick snow. This will help to make it easier for the grower to maintain the greenhouse and provide the best possible environment.

Designed to withstand the harshest of weathers, Keder Greenhouses are located in most parts of the UK, including Shetland and the Hebrides where the weather can be extreme at times. For over 25 years, Keder Greenhouses have been manufactured in the UK from high quality materials, providing growers with an excellent product to create the best growing environment. For more information on Keder Greenhouse click here.

Click to find out more about Keder Greenhouse and their technically superior greenhouse/polytunnel cladding

If you are interested in a quote the just click here to make an enquiry.