Specially shaped roof hook

Specially designed roof hooks play a central role in the secure mounting of photovoltaic modules on pitched roofs. They are not only responsible for the static load transfer, but also ensure a permanent connection without damaging the roof membrane. In this article, we explain the design, function, and advantages of these specially shaped components – and show why they play a crucial role, especially in innovative solutions like CLEVER-TILE ®.

What is a specially shaped roof hook?

A specially shaped roof hook is a customized metal component precisely tailored to the geometry of the roof tiles. Unlike standard hooks, which often require compromises in fit, these hooks allow for stress-free installation and maximum stability. The special shape takes into account roof tile profiles, coverage depth, batten spacing, and roofing materials – thus ensuring precise integration into the roof structure.

Structure and Function

Components and materials

Roof hooks, specifically designed for this purpose, are typically made of corrosion-resistant stainless steel (e.g., V2A or V4A) because they are permanently exposed to the elements. The main components include:

• Base plate or base support
• Shaped shaft with bending zones
• Mounting rail or bolts for mounting rails

Special geometries for special roofs

A specially shaped roof hook adapts to concave or convex tile profiles and takes into account the roof pitch and substructure. The hooks can often even be individually bent or are manufactured from the outset in a special shape – e.g., for corrugated fiber cement, beaver tail tiles, Frankfurt pan tiles, or special concrete roof tiles.

Functionality during module assembly

The roof hook is screwed to the batten or counter batten beneath the roof tile. Its special shape ensures that the tile rests without tension and is not damaged. The rail, onto which the solar panels will later be mounted, is attached to the top of the hook. The loads – wind, snow, and the weight of the panels – are transferred directly into the roof structure via the hooks.

Advantages of specially shaped roof hooks

✔️ Perfect fit for various roof tiles

Individual customization eliminates the need for time-consuming grinding or cutting work on the tiles. This saves time during installation and protects the roof membrane from mechanical damage.

✔️ Increased load-bearing capacity

The targeted design improves the transfer of force into the substructure. This allows the hooks to withstand even high snow loads or wind forces – a crucial advantage in snowy or exposed regions.

✔️ Less assembly effort

Thanks to their precise shape, the hooks fit perfectly from the start – this minimizes installation errors and significantly reduces installation time. This results in noticeable cost savings, especially for larger systems.

✔️ Durability and maintenance-free

High-quality stainless steel ensures a long service life without corrosion. The shape remains stable even under temperature fluctuations and load cycles – ideal for long-term PV installations.

✔️ Perfect solution for roof renovations

Specially shaped roof hooks are particularly suitable for old buildings with irregular roof structures or historic tiles, where standard solutions do not work.

Applications of specially shaped roof hooks

Photovoltaics on pitched roofs

Whether tile, slate or metal roof – specially shaped roof hooks provide an ideal basis for mounting solar panels. They enable secure fastening without penetrating the waterproof layer.

Listed building and old building

Especially in listed buildings, it is important to preserve the original structure. Custom-made roof hooks enable PV installation without altering the roofing material.

Special solutions for complex roof shapes

For particularly steep, curved or segmented roofs, these roof hooks offer a solution that adapts flexibly while remaining statically load-bearing.

Specially shaped roof hooks at CLEVER-TILE ®

Intelligent connection with the replacement brick

CLEVER-TILE ® utilizes the principle of specially shaped roof hooks to create a stress-free and permanently tight connection between the PV substructure and the roof. The load is transferred across the roof structure not at a single point, but over a larger area – protecting the roof and without unnecessary drilling.

No grinding. No adjusting. No risk.

With CLEVER-TILE ®, there's no need for manual tile adjustments. The special shape of our hooks fits precisely into the geometry of our replacement tiles, enabling simple, quick, and secure installation. This reduces risks, installation time, and costs.

Buy directly from CLEVER-TILE ®

Our specially designed roof hooks are directly compatible with our system and the *CLEVER-TILE ® replacement tile.* They are readily available, easy to install, and perfectly matched. 👉 Buy directly from CLEVER-TILE ® now or request a quote. More information here.