Roof protection is a crucial component in the planning and installation of photovoltaic systems. It ensures that roofs can withstand not only the loads of daily use but also additional stresses such as snow, wind, and the photovoltaic modules themselves. Improper intervention in the roof structure, such as cutting or drilling through roof tiles, can cause serious damage and even jeopardize insurance coverage. This article will tell you everything you need to know about the importance of roof protection, typical stresses, and how non-penetrating systems like CLEVER-TILE ® can protect your roof.

1. What is roof protection?

Roof protection encompasses all measures aimed at ensuring the stability, watertightness, and longevity of a roof. This includes protection from the elements, ensuring load-bearing capacity, and preventing damage caused by mechanical intervention.

1.1 Why is roof protection important?

  • Weather protection: Prevents rain, snow or wind-driven snow from penetrating the roof substructure.
  • Thermal insulation: Supports the energy efficiency of the building.
  • Structural analysis: Preserves the load-bearing capacity of the roof, even with additional loads from photovoltaic systems.

2. Loads acting on a roof

Roofs are exposed to various stresses, which can vary depending on the region and use. These stresses can lead to damage if the roof is not properly planned or installed.

2.1 Snow loads and wind-blown snow

Snow loads are one of the biggest challenges for roofs, especially in regions with heavy snowfall. One square meter of wet snow can weigh up to 200 kg. Wind-driven snow, forced under roof tiles by the wind, can compromise the roof's watertightness.

2.2 Wind and water loads

Wind exerts both pressure and suction forces on the roof, while water can penetrate through leaks and damage the substructure. Standing water leads to mold growth and material fatigue in the long term.

3. Risks due to improper handling of roof tiles

Improper modifications to the roof structure can have serious consequences. Cutting or drilling through roof tiles is particularly problematic.

3.1 Loss of tightness

Treated tiles do not offer complete protection against water and wind-driven snow. Water penetration can compromise the long-term stability of the roof structure.

3.2 Risk to insurance coverage

Many insurance companies refuse to cover damages if the roof has been improperly repaired. Therefore, professional installation and the use of approved mounting systems are crucial.

4. Measures for reliable roof protection

To protect the roof in the long term, well-thought-out measures and high-quality mounting systems are required.

4.1 Non-penetrating mounting systems

Non-penetrating systems like CLEVER-TILE ® enable the safe installation of photovoltaic systems without damaging the roof structure. They eliminate potential weak points and protect the roof membrane.

4.2 Checking the roof statics

Before installing photovoltaic systems, the load-bearing capacity of the roof should be checked by a structural engineer. This ensures that the roof can support the additional load.

5. CLEVER-TILE ®: Innovative protection for roofs

CLEVER-TILE ® is a specially developed mounting system that works without penetrations and optimally protects the roof structure. It replaces conventional roof tiles with replacement tiles featuring integrated fixing points.

5.1 Advantages of CLEVER-TILE ®

  • Non-penetrating: No cutting or grinding of roof tiles is required.
  • Highly resilient: Designed to withstand heavy snow loads and wind forces.
  • Durable: Robust materials ensure a long service life.
  • Compliant with funding programs: Meets the requirements of many funding programs and insurance companies.

Conclusion

Protecting the roof is essential to ensure its long-term function and stability. Especially when installing photovoltaic systems, non-penetrating mounting systems like CLEVER-TILE ® should be used. These protect the roof structure, increase safety, and maintain insurance coverage.

Referenced terms and sources

This existing glossary article was reviewed and approved on 14 October 2026. Time-sensitive information still refers to its original publication context unless the article states otherwise. It does not replace installation instructions or confirm compatibility with a particular roof tile model.

Machine-assisted translation. The German version remains available.

Data sheet and installation guideOriginal source