Fermacell: how to cut it, install it, fix it and finish it?


We speak of “Fermacell” as a building material with a future, but it is above all the name of the manufacturer selling the product (http://www.fermacell.fr/): by default, we use the brand for designate the product.

With the emergence of “green” homes, it is increasingly used for its many benefits. This recyclable product benefits from greater strength compared to other materials such as plasterboard. It is heavier and therefore more stable.

Households will have a definite preference for its predominantly natural composition of gypsum-cellulose fibers, mixed with water. In addition to its natural properties which will prevent allergies due to chemicals, Fermacell is resistant to high temperatures and humidity. Fermacell has already invested in bathrooms, kitchens and even toilets.

This component is found in many parts of the construction, including interior partitions and exterior walls. Many also use it as a wall, to ensure good sound insulation. The trend has been to use it on the ground for some time.

Installation of Fermacell

Erecting walls in Fermacell remains a fairly simple task if you have the right tools. Its weight can still pose a small problem if you do not have a team to install it. To cut it, it is best to have a circular saw. Fermacell partitions are too thick to be able to be cut entirely with a cutter. In addition, with a circular saw, the cut will be more precise without having to provide the slightest effort.

The Fermacell plates are aligned then adjusted to be then glued using a special adhesive called “joint”. Due to its weight and rigidity, the Fermacell must be anchored to a solid base. Many installers opt for solid wood or even metal frames to ensure the safety of residents. It is then sufficient to align the plates with the provisions designed for this purpose. These will be fixed with screws or staples. We start with the outer edge to go to the middle of the room.

Fix the Fermacell plates

To fix the Fermacell plates, it is also recommended to have an electric screwdriver to speed up the installation work. Otherwise, a pneumatic stapler, more manageable, will do just as well. The glue can also be used as a vertical or horizontal joint.

Finally, note that Fermacell can also be used in the formation of a suspended ceiling. The laying technique does not differ much from that of walls. Indeed, to accommodate the Fermacell slabs, several layers, including a primary and secondary lathing will be required.

It should be ensured that the plates are well cleaned and dry before proceeding with the actual finishing. It consists, among other things, of applying a finishing coating to the plates. This is an opportunity to hide the imperfections linked to the installation, and to fill in the holes. A bead of sealant will then reinforce the pre-applied joints. Finally, the installation of a final layer of expansion joints will complete the finishing work. This is valid for both partitions and suspended ceilings.