How to fix solar panels on a fiber cement roof?

The solar panels are increasingly used to produce your own energy. Depending on the type of building, the roof or facade can be reconfigured in order to install these photovoltaic panels.

The configuration and installation of panels are not to be taken lightly. The different materials that make up the roofs must be taken into account in order to guarantee a durable and risk-free assembly. In this guide, we will see how to fix the solar panels on a fiber cement roof.

What is fiber cement?

Fiber cement is a composite material made up of asbestos, cement and natural or synthetic fibres, such as polyester. It is widely used for the construction of interior and exterior coatings, especially for roofs. It is also frequently found for the production of tiles, sheets and sandwich panels.

This material offers good resistance to corrosion and impact, making it the ideal choice for exposed constructions in a very humid climate. Additionally, fiber cement is inexpensive and can easily be installed and maintained by DIY enthusiasts.

Why is it important to know the type of roof before fixing?

It is extremely important to know the structure, the weight and the characteristics of the roof in order to be able to correctly install solar panels on it. Indeed, if you install panels that are too heavy on a weakened roof, it risks collapsing.

Similarly, depending on the type of roof, some anchoring techniques will be more suitable than others. The various systems and their installation often require specific tools and special know-how.

How to fix the solar panels?

When choosing solar panels to complete your roof, it is imperative to follow the instructions provided by the manufacturer regarding use and mounting. Typical instructions for installing solar panels on a fiber cement roof are as follows:

  1. Choose the right mounting system. The choice is very wide and it is advisable to carry out some research in order to find the system most adapted to your type of roof and that of your panel.
  2. Check the safety instructions. When climbing on a fiber cement roof, it is essential to wear adequate safety equipment (non-slip shoes, helmet, etc.).
  3. Prepare the substrate. After the equipment and the place of assembly are ready, you will need to analyze the roof and carry out some preliminary adjustments and masonry work.
  4. Install support system. Aluminum or stainless steel profiles, linked together by loops, are generally used to hold the panels and allow them to be oriented towards the sun.
  5. Fasten the panels. You will then have to screw the solar panels on your fiber cement roof and check that everything is firmly attached.
  6. Perform a voltage test. Use an appropriate multimeter to verify that the circuit is properly isolated. Also make sure the panels are facing the sun.

Once fixed, you can connect your solar panels to an inverter to convert the direct current produced into alternating current. This will allow you to supply electricity to your home and benefit from total autonomy!

What alternative solutions?

If your fiber cement roof is too fragile to accommodate solar panels, there are other options for developing your own energy production. For example, you can adapt Roman tiles to integrate photovoltaic panels. These tiles are less expensive than traditional models and they offer additional protection against UV rays and wind.

In addition, you can install flat roof systems on your property. These systems consist of creating a flat roof on which are installed metal rails on which the solar panels are then fixed. This type of solution is particularly recommended for flat roofs and industrial buildings.

Finally, balconies and other flat surfaces on your property can also be equipped with solar panels. Thanks to a specially designed support structure, you can easily install and maintain your photovoltaic panels on vertical surfaces.


Solar panels are an excellent way to produce your own ecological and sustainable energy. To correctly mount solar panels on a fiber cement roof, it is crucial to know the characteristics of this roof and to choose the appropriate mounting system. If your roof is too fragile, there are alternative solutions such as Roman tiles or flat roof systems.

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