Roof Penetration

In photovoltaics, a roof penetration refers to the point where a solar panel or another component penetrates the roof. This is necessary to securely and stably attach the modules to the roof. This method is often used in the so-called rooftop installation.

Types of Roof Penetration

• Direct Penetration: This involves drilling holes in the roof covering to directly screw the modules in place. While this method is very stable, it carries the risk of leaks.
• Indirect Penetration: Here, the modules are mounted on a substructure that is then screwed to the roof. This reduces the number of direct penetrations, thus lowering the risk of leaks.

Advantages and Disadvantages

Advantages:

• Stable Attachment: The modules are securely and firmly attached to the roof.
• Diverse Applications: This method is suitable for almost all roof shapes.

Disadvantages:

• Risk of Leaks: If not executed properly, leaks may occur at the penetration points, leading to potential damage to the building.
• Higher Costs: Installation is usually more complex and, therefore, more expensive than a flat installation.
• Aesthetics: The visible attachment points may affect the appearance of the roof.

Important Aspects of Roof Penetration

• Sealing: The penetration points must be completely sealed to prevent moisture damage.
• Statics: The roof structure must be able to support the additional load from the modules.
• Material Selection: The materials used must be weather-resistant and corrosion-protected.
• Professional Execution: Installation should only be carried out by experienced professionals.

Conclusion: Roof penetration is a common method for securing solar panels. It offers high stability but carries the risk of leaks. Therefore, careful planning and execution are essential.

Additional Keywords: Rooftop Systems, Substructure, Solar Panels