Leading position on the flat roof.

A synthetic roofing membrane got everything going. A milestone. Several decades later, after numerous innovations and 250 million square metres of roofing membranes sold, FDT today has brought to perfection the art of water­proofing. Leading FDT flat roof technology provides architects, investors and roofers with smart and practically proven long-term solutions. It goes without saying that projects always include consultation.

To this end, our clients can rely on worldwide support by FDT flat roof specialists. Take advantage of our services. Discover water­proofing with Rhepanol and Rhenofol. Experience the FDT light systems with a wide variety of rigid PVC products to meet the most challenging requirements for roofs and walls. Acid protection is another area of expertise of our company.

FDT is part of the


Donges Group – Connecting.Solutions.Successfully.

The Donges Group is a leading full-line supplier of bridge and steel construction as well as roof and facade systems in Western and Northern Europe. The company belongs to the Mutares Group and represents a significant investment in the Engineering & Technology segment.

After a successful repositioning, strong organic growth and four strategic acquisitions in the last twelve months, the Donges Group with its 950 employees expects a cumulative total annual turnover of around EUR 280 million. The Group has locations in 12 countries.

With its brands Donges SteelTec, Kalzip, Normek, FDT and Norsilk, the company successfully offers its customers solutions in the field of steel bridges for road and rail construction, in industrial and individual steel construction as well as roof and facade solutions made of aluminum, glass and high-quality membranes.

"With its flexible international footprint, its strong brands and the extensive product and process know-how of its employees, the Donges Group offers its customers added value that is unique in Europe". (Johannes Laumann, Group CEO)

If you would like to know more about the Donges Group or its members then visit our website donges-group.com.