The fully galvanised steel foundation ring

Includes GermanDome’s 5-year factory guarantee for weather resistance and unbreakability

Developed by German engineers and protected by a GermanDomes GmbH design and utility patent – the steel foundation ring.

Solid, corrosion-resistant steel elements give the GermanDomes structures a solid foundation. Complex static calculations, displacement and wind assessments and intensive testing under the toughest conditions have shown how robust and resistant the overall steel structure is to any challenge, no matter how extreme. The steel foundation ring can be positioned on any load-bearing, level surface. Unlike aluminium, plastic and even stainless steel, steel is highly resistant to even the harshest environmental conditions. Steel uniquely combines the properties of strength, low deformability, toughness and hardness. Galvanised steel has a high ecological balance and offers the most economical long-term corrosion protection of all known systems. Galvanised steel is an unrivalled material when it comes to corrosion resistance, stability and durability. Pre-drilled holes in the PE connectors between the inner and outer ring also allow our customers to screw the foundation ring to the ground or to install ground anchors. On request, our construction parts (ring and door components) can also be ordered in a variety of paint colours, but always with a base of galvanised steel.

On request, our construction parts (ring and door components) can also be ordered in a variety of paint colours, but always with a base of galvanised steel.

Why is there no alternative to galvanised steel as a substructure?

Aluminium is unsuitable for a substructure with high requirements, as the material is susceptible to torsion and too light for high winds. Aluminium is liable to scratch and can be damaged by impacts, and it begins to react chemically after a short time outdoors and takes on a white bloom. In regions with high salt content in the air, even stainless steel (A2) starts to corrode and forms unsightly flash rust.

The door frame element

The floor/door frame segments of all models in the series are made of high-quality steel of grade S235 EN 10025-2. The frame construction and the side parts of the door, including the bottom segment, are an independent, highly stable component that is torsion-resistant, extremely robust and resistant to all environmental influences thanks to its solid design. On completion of the handcrafted component, the entire frame construction of the door is fully galvanised. Unlike aluminium, plastic and even stainless steel, steel is highly resistant to even the harshest environmental conditions. Steel uniquely combines the properties of strength, low deformability, toughness and hardness. Galvanised steel has a high ecological balance and offers the most economical long-term corrosion protection of all known systems. A shock-absorbing door seal is fitted around the door frame, which adequately protects the glass door even if it is caught by a strong gust of wind.

At the customer’s request, all parts of the steel structure can be painted in a variety of colours, but the base is always high-quality galvanised steel.