the TB-HORTIROOF replaces the "Knikdek"

Our TB-Hortiroof is an advanced evolution of the widely used "Knikdek" in the horticulture sector. The package consists of custom-made sandwich panels with a flat outer steel sheet and diagonally cut ends to seamlessly connect with our in-house developed and patented aluminum TB-Guttersystem and ridge profile.

This makes the TB-Hortiroof a fully integrated roofing system that can be directly installed on the gutters of the Venlo substructure. The result is a robust, durable, waterproof, and condensation-free insulated sandwich roof for the Venlo construction.

During the development of the TB-Hortiroof, consideration was also given to the installation process, which is highly appreciated by field technicians.

For the specific features of the aluminum TB- Guttersystem, please refer to the corresponding chapter.

sandwich knikdak 3

Weatherproof finish

The most important requirement for the TB-Hortiroof, is the fact that it is weatherproof. T-Bouwsystemen has developed a specially, patented, TB-Guttersystem with a PVC thermal break. All seams of the roof are sealed with a special sealant. The thermal break in the TB-Guttersystem prevents a thermal bridge, which makes condensation a thing of the past. By placing the flashings on the ridge, the entire roof is completed weatherproof.

T Bouwsystemen knikdek in afbouw fase groot formaat

new construction or refurbishing

The TB-Hortiroof offers a light but solid roof and can be mounted on any Venlo substructure construction. This can be included as part of a new construction, but can also be mounted on an existing substructure. Together with the assembly of insulated façade panels, you can then relatively easily change part of your construction into an insulated production area or storage or office spaces.

Knikdek leeds

OUR tB-Hortiroof supplied as one package

As mentioned earlier, we offer ourTB-Hortiroof as a complete package. In addition to custom-cut sandwich panels, this package includes all necessary aluminum profiles and the essential plastic core. The construction manual provides the technicians with detailed instructions for effortless assembly, including an overview of the required installation materials. All these components ensure an efficient and smooth installation of a waterproof and condensation-free roof.


Basically you have the same options in coatings and colours as with the façade panels. However, we often recommend choosing a lighter color with a strong and colorfast Ultra-X-70-75μm or the HPS Ultra 200μm coating. As a result, the panels reflect the solar radiation more effectively and your roof is well protected against the various weather influences.

T Bouwsystemen Montage Knikdek subformaat
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knikdek 9
T Bouwsystemen Knikdek in Canada subformaat

More information?

We are happy to provide you with free advice.

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