Surface Load
Surface Load refers to the weight that a photovoltaic system exerts per square meter on a surface, typically a roof. This weight consists of:
- Weight of the Solar Modules: The solar modules themselves have a certain weight that depends on their size and the material used.
- Weight of the Mounting System: The frame on which the modules are attached also contributes to the total weight.
- Additional Loads: This includes, for example, snow, wind, or any additional weights for securing the system.
Why is the Surface Load Important?
The surface load is a crucial factor in the planning and installation of a photovoltaic system as it affects the static load-bearing capacity of the roof. A roof must be able to safely support the additional weight of the solar system without causing damage. Inadequate static calculations can lead to serious problems, such as leaks in the roof or even collapse.
What Factors Influence the Surface Load?
- Choice of Modules: Lightweight but high-performance modules can reduce the surface load.
- Mounting System: The chosen mounting system significantly influences the weight of the installation.
- Roof Pitch: For flat roofs, additional weighting is often required to secure the system.
- Regional Conditions: Snow and wind loads vary by location and can increase the total load.
What Are the Consequences of a Too High Surface Load?
- Damage to the Roof: Leaks, cracks, or sagging may occur.
- Risk to Structural Integrity: In the worst case, the roof could collapse.
- Loss of Performance: An insecure installation can impair the performance of the system.
Conclusion:
Calculating and considering the surface load is an important part of planning a photovoltaic system. Proper installation by a certified specialist ensures the safety and longevity of the system.
Relevant Keywords: Photovoltaics, Solar System, Solar Modules, Pitched Roof, Snow Load, Wind Load