To support wind load and fire protection components

The demanding planning of the roof terrace of the "THF Tower" required a robust and durable substructure. As wood was not an option as a material for the substructure due to fire protection regulations, aluminum profiles were used. The substructure skeleton, which extends over the entire roof of the tower, forms the roof terrace and the transitions between the individual levels. The height of the substructure varies from five centimetres at the lowest point to 70 centimetres at the highest point. A combination of concrete and gravel was used to compensate for height differences.

Karle & Rubner developed an innovative concept in close cooperation with the responsible parties to meet the special requirements for wind load, fire protection and pressure load. The substructure consists of adjustable plastic supports placed on an insulating and sealing layer. These supports carry a support structure made of aluminum profiles on which the wooden decking was laid. Concrete slabs provide the necessary weight at critical points. This system offers a high degree of flexibility in terms of height adjustment and leveling to compensate for unevenness in the substrate. The newly developed substructure could also be used in future projects, as the design offers solutions for terraces under special conditions and makes it possible to respond to different structural conditions.

Skilled craftsmanship and a close relationship with wood have been a tradition at Karle & Rubner since 1905 and form the roots of our owner-managed company. Where rustic balcony profiles were once planed from solid wood, new ideas for modern terrace design are now being developed.