TB-HORTIROOF sets new standard
Our TB-Hortiroof is an advanced development of the widely used "Knikdek" in the horticultural sector. The package consists of custom-made sandwich panels with a flat outer sheet and beveled edges, ensuring a perfect fit 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 onto the gutters of the Venlo substructure. The result is a robust, durable, waterproof, and condensation-free insulated sandwich roof for the Venlo structure.
During the development of the TB-Hortiroof, special attention was also given to the ease of installation, which is highly appreciated by field technicians.
For the specific features of the aluminum TB-Guttersystem, we refer to the corresponding chapter

TB-Hortiroof weatherproof and condensfree
A watertight roof is essential—and every component of our TB-Hortiroof system is engineered to meet that demand. The TB-Gutter system ensures a robust, seamless connection along the full length of the profiles. A unique EPDM expansion joint between the gutter cover profiles absorbs the natural expansion and contraction of the aluminum, maintaining a tight seal over time. Additionally, every sandwich panel joint is fitted with the specially developed T-Bouwstrip.
This patented T-Bouwstrip offers a game-changing solution for sealing panel joints on your Knikdek roof. It eliminates the need for time-consuming caulking, significantly increasing both installation efficiency and long-term reliability.
Together, these innovations ensure that the TB-Hortiroof roofing system delivers a fully waterproof, condensation-free, and insulated roof—perfectly suited to Venlo greenhouse structures.

T-bouwstrip offers unique finish on every seam
Applying sealkit to the seams is a time-consuming task that also requires consistent precision during application. Improper application can after all lead to potential leaks.
Simple, efficient, and reliable!
- Easy to install: Thanks to its thoughtful design, the T-Bouwstrip can be quickly and effortlessly attached. No complex installations—just hassle-free application during panel assembly.
- Always a perfect fit: The T-Bouwstrip is always supplied in the exact length to match the chosen panel (hood width), ensuring a clean finish without any on-site adjustments.
- No room for error: The T-Bouwstrip can only be installed in one way, guaranteeing correct functionality and perfect installation every time.
- Completely waterproof: Our T-Bouwstrip fully covers the seams of the sandwich panels, providing optimal protection against moisture and leaks.
- Integral part of the TB-Hortiroof roofing system: The T-Bouwstrip is covered by the gutter cover at the gutter side and by the ridge profile at the top.
If you have any questions after reading this, please don't hesitate to contact our team. We're here to help.

tB-Hortiroof delivered as one package
COATINGS AND COLORS
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.