HIGH-BEAD RAIL HK: the intelligent system for trapezoidal sheet metal installations

Discover how the S:FLEX system simplifies the horizontal installation of photovoltaic modules on trapezoidal sheet metal roofs

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When talking about photovoltaic installations on roofs in corrugated or trapezoidal sheet metal , the choice of the anchoring system makes the difference in terms of assembly speed, stability and performance over time . The High-Bead Rail HK 125/172 AK Of S:FLEX It is designed to carry efficiency and reliability , maximizing ventilation, simplicity and flexibility. Let's discover the System together: Material: Aluminium EN AW-6063 T6 Module orientation: Horizontal (landscape) Fixing: Screws directly onto the reliefs (“beads”) of the sheet metal Advantages: Secure anchoring, rear ventilation, quick assembly The system allows you to install the modules horizontally , reducing time and complexity on the construction site. Main technical features: Track height: 24 mm (for ventilation and cable passage) Supported roof pitch: up to 75° Maximum load: up to 5.4 kN/m² (depends on the project) Available lengths: 125mm and 172mm pre-assembled Accessories: Pre-assembled EPDM tape and pre-drilled holes System advantages: Low costs Thanks to the optimisation of the structure (reduced height, simple fixing) materials and assembly times are reduced. Ventilation and cable management The 24mm height allows for good airflow under the modules, contributing to better thermal performance, and also facilitates cable routing and the possible integration of optimizers or microinverters. Compatibility with corrugated sheet metal and slightly corrugated profiles The system is designed to be mounted directly on the raised corrugations of the sheet metal, making it suitable even for roofs that are not perfectly flat. Design flexibility The various length versions and horizontal orientation allow for adaptation to various module and roof configurations, simplifying system design. Although the system supports steep inclinations, for extreme slopes or particular conditions (wind, snow, exposed areas), a specific structural check is always recommended. Considerations and applicability: It is important to check that the corrugated roofing has reliefs (“high beads”) with a minimum width of 25 mm and a flat load-bearing surface of at least 20 mm around the fixing hole. Since it is a system fixed via screws to the sheet metal, it is essential to ensure that the sheet metal is correctly sized and that the underlying substructures are adequate in statically terms. Even if the system supports steep slopes, for extreme slopes or particular conditions (wind, snow, exposed areas) a specific structural check is always advisable. The system High-Bead Rail HK 125/172 AK represents a solution efficient, flexible and economically attractive for the horizontal installation of photovoltaic modules on raw/trapezoidal sheet metal roofs. It offers significant advantages in terms of installation speed, ventilation, cable management, and material/assembly costs. If you are planning a corrugated sheet metal system and are looking for a high-performance and reliable solution, this system certainly deserves careful consideration. Want to learn more? Visit the dedicated page or Contact us for direct support . Our team is ready to help you choose the solution that best suits your needs!
Pubblicato il 17 novembre 2025
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