How to Install Solar Panels on a Flat Roof Without Penetrating the Surface?

Installing solar panels on flat roofs often raises one major concern: how to secure the system without damaging the roof. Traditional ballast systems rely on heavy weights, while other systems require drilling through the roofing layer. RAULI FLAT offers a smarter solution. Its heat welded directly onto bitumen roofing, eliminating the need for both ballast and mechanical penetrations.

1. Heat welded for maximum roof integrity

Instead of drilling holes or adding weight, the mounting brackets of the RAULI FLAT system are heat welded directly onto the bitumen membrane. This method maintains the waterproofing layer and structural integrity of the roof. There is no risk of leaks, and no need for additional sealing or reinforcements.

2. No extra ballast required

Thanks to its secure welded attachment, RAULI FLAT does not require any concrete blocks or extra weight. This reduces the load on the roof and makes it ideal for buildings where structural limits are a concern. It also simplifies logistics and installation.

3. Quick and efficient installation

The mounting rails feature a telescopic design, allowing flexible positioning and easy alignment even on large rooftops. Installers can work quickly without precision measurements.

4. Durable and weather resistant

RAULI FLAT is engineered for harsh northern climates. It withstands snow loads and strong winds while staying securely in place. The design minimizes uplift forces and ensures long term stability, even in extreme conditions.

5. Compatible and future proof

The system works with nearly all standard sized solar panels without the need for custom parts. Its modular structure also makes it easy to scale or adjust if system size or layout needs to change in the future.

Summary

RAULI FLAT changes the game for flat roof solar installations. By heat welding the mounting brackets to bitumen surfaces, it eliminates the need for roof penetrations or heavy ballast. This method preserves the waterproofing layer, reduces weight, and simplifies the installation process.

If you are looking for a flat roof solution that is secure, durable and easy to install, without compromising the roof. RAULI FLAT is the answer.

Try planning your system with the Rauli App and experience how simple flat roof solar installations can be.

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