ValkGreenTop | Saving energy with an outer screen

The climate inside a greenhouse is easier to control when certain weather factors can be ‘screened out’ before they enter the greenhouse. Keeping sunlight out, for example, reduces irradiation and keeps temperatures down, which is especially important when growing premium ornamental plants such as orchids and roses.

On top of that, outer screens also help keep power consumption down, because they reduce cooling needs and increase CO2 concentrations thanks to less ventilation loss. And thanks to outer screens’ insulating effect, considerable energy savings can even be achieved over the winter months.

The ValkGreenTop outer screen by Van der Valk Horti Systems sits on the greenhouse’s ridge, which keeps the gutters clear and prevents dirt from accumulating. The lightweight structure is weatherproof and compact, which minimises light interception.

Lightweight Compact Less cooling Less heating CO2concentrations

ValkScreenDrive: The right screen drive system for any Venlo greenhouse

With three different drive types to choose from, you will always get the right system for your greenhouse!

Semi-push/pull drive system

Cost-effective and compatible with any type of greenhouse Without a rack No load on greenhouse gables

How does it work?

Works using the push/pull tube and steel pull wire.
Combines the benefits of a push/pull system with those of a pull wire system.

Read what our partners say about their experiences with our company and our systems.

We can, of course, tell you all about how great our product is, but we prefer to leave that to our partners, who have been using our systems for years.

Customer testimonial

Van der Valk Horti Systems has a good-quality lightweight ventilation mechanism and actively listens to our feedback and offers smart solutions.

Gakon Netafim

Customer testimonial

Dalsem builds and relies on Van der Valk Horti Systems. It is with good reason that we at Dalsem have been procuring our screen materials and ventilation mechanisms from Van der Valk Horti Systems to our full satisfaction for so many years.


Customer testimonial

The materials that Van der Valk Horti Systems supplies are of good quality. Deliveries are virtually always complete. In case of damage or when we need to act fast, it is very convenient that they have always numbered the parts ordered in advance. For us, they are a reliable partner to work with.

Saarlucon Gewächshausbau

Customer testimonial

‘For Van der Valk Systemen, being a good partner is in their DNA. An authentic company with great core values and people. Our collaboration with them since 1990 has been good all around, they are always at the forefront of what they do and aim for the best of the best in screen systems.’

SchermNed screening and insect mesh

Customer testimonial

‘I don’t see Van der Valk Horti Systems as a mere screen material supplier, but rather as a partner who helps me from the very first enquiry through to the completion of projects in the Netherlands and elsewhere.

All the components supplied are easy to install and guarantee a well-functioning screen system for my customers. They have taken the concept of making life easier for their customers to the next level!’

Alsemgeest Scherminstallaties

Customer testimonial

‘Thanks to the innovative essence and high-quality products of Van der Valk Horti Systems., we have been able to raise our game in providing our customers with the very best horticulture greenhouses’

Maurice Kassenbouw

Customer testimonial

We like working with Van der Valk Horti Systems.
They are committed to their product, they innovate, and they resolve any problems in no time.

Luiten Greenhouses

Customer testimonial

We believe that Van der Valk has the premier greenhouse shade and roof opening systems in the industry. We are very fortunate to be distributors of their product and we have an amazing working relationship with them when it comes to problem solving. Highest recommendation.

Van Wingerden Greenhouse Company

Customer testimonial

‘ValkTriplePlus stands for high quality and easy installation for us. A1 Group also stands for high quality, which is why we have opted to use this system as our standard system. Additionally, existing components can be used in this system, making life even easier for us when it comes to installation.’

A1 Group

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