Ballast System

A ballast system is a special type of mounting for photovoltaic modules, primarily used for installation on flat roofs. Unlike conventional mounting methods, where the modules are often secured by drilling or screwing, the ballast system uses the principle of weight.

Functionality:

• Weight distribution: The ballast system consists of a substructure on which the solar modules are mounted. This substructure is weighted down with heavy materials, such as concrete slabs or sandbags.
• Stability: The weight of the modules and the ballast material ensures that the system is securely and stably fixed on the roof. It is important that the weight is distributed evenly to guarantee a safe installation.
• Flexibility: A major advantage of ballast systems is their flexibility. Since no permanent connections to the roof are required, the modules can be easily dismantled and reinstalled at a different location if necessary.

Applications:

• Flat roofs: Ballast systems are especially suitable for flat roofs, as penetrating fastenings are often not possible or desired in these cases.
• Temporary installations: For temporary or mobile photovoltaic systems, ballast systems are also a good choice.
• Roofs with low load capacity: On roofs with low load capacity, ballast systems can be a more gentle alternative to other mounting methods.

Advantages:

• Non-invasive installation: The roof is not damaged by the ballast system, as no drilling or similar interventions are required.
• Flexibility: The system can be easily dismantled and reinstalled at another location.
• No permit required: In many cases, installing a ballast system does not require complex permits.

Disadvantages:

• Higher cost: Ballast systems are often more expensive to purchase than conventional mounting systems.
• Space requirements: The weights required take up additional space on the roof.
• Susceptibility to wind: In strong winds, additional security measures may be necessary.

Conclusion:

Ballast systems provide a flexible and non-invasive way to mount photovoltaic systems, particularly on flat roofs. Whether a ballast system is suitable for a specific project depends on various factors, such as the roof structure, local wind conditions, and the individual requirements of the system operator.

Additional keywords for search: Flat roof mounting, Substructure, PV system