Loss of light through condensation

Water droplets on the inside of greenhouses due to condensation can cause considerable loss of light.

Research by Wageningen UR* shows that the average loss can reach 9%! Therefore, by allowing the condensation layer on the inside of the greenhouse roof to flow away, a large increase in light transmission can be achieved.

New films can have an anti-condensation coating applied in the factory. This coating will last about two production seasons. Films with no (longer) anti-condensation properties can be treated with the AntiCondens coating produced by Mardenkro. This coating has been developed to treat existing films or polycarbonate panels with an anti-condensation layer and it can easily be applied to the inside of the greenhouse. The optimal result is achieved by lightly misting the film or polycarbonate panels and allowing it to dry well. AntiCondens should always be applied well before the condensation season begins. The coating is water-based and safe to use.

Sunlight can be effectively managed in any season

Consultants Jelle Hoogland and Paul van Gils provide tips for the rational and efficient use of coatings. “A key question is, under what conditions does the plant suffer most? This is when you need to intervene,” says Hoogland. Paul van Gils looks back on past seasons: “We have learned a great deal during...

How much light does my crop need?

There is an optimal amount of light for every crop. Too little means that production will be low. But too much will put pressure on the yield and quality. So custom work is always key.

Controlling growth with light: more in winter, diffuse in summer

For a grower, every ray of sunlight entering the greenhouse in winter is a bonus. Light is also welcome in summer, provided it is properly distributed throughout the crop. This can be achieved by combining coatings. Two vegetable growers are leaders in this field in the Netherlands.