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Inselhalle Lindau | Fire protection for steel

The Inselhalle Lindau is a versatile event venue with a flexible room concept (46 different room variants), high-quality equipment and a breathtaking location. Nestled between Lake Constance on one side and the historic old town of Lindau on the other, the Inselhalle is an ideal venue for congresses, conferences and events.

Important events take place here, including the Nobel Laureate Meetings, where an impressive number of laureates meet with around 600 young scientists every year to exchange ideas and engage in dialogue.

The architectural concept envisaged leaving the outdated congress hall clearly recognisable on the outside thanks to its striking roof shape. The steel structure for the distinctive polygonal folded roof surfaces was developed together with the Stuttgart-based structural engineering firm Boll und Partner.

At the International Architecture Congress in April 2022, the Inselhalle was awarded the prestigious special prize for ‘sustainable steel architecture’ by the Federal Ministry for the refurbishment.

The German Steel Construction Award is one of the oldest and most prestigious architectural competitions in Germany. It is organised by bauforumstahl e. V. (BFS), the leading association for building with steel in Germany. The overriding aim is to promote steel construction methods, taking into account holistic aspects such as cost-effectiveness, safety, flexibility and sustainability. Its 350 or so members include all well-known German steel construction companies, upstream suppliers and downstream trades, architecture and engineering firms as well as colleges and universities.

Protected with HENSOTHERM® steel fire protection
The steel construction of approx. 5,300 m² for the polygonal folded roof surfaces of the building was protected against corrosion by Vollack Hallen- und Stahlbau GmbH & Co. KG with HENSOGRUND 1966 E, a solvent-based, single-component alkyd resin primer for blasted profiles. Subsequent assembly and outdoor weathering of the steel components on the construction site was therefore possible before application of the intumescent coating. After installation, the first step was to fireproof the top chords with the steel fire protection coating HENSOTHERM® 310 KS outdoor to the required fire resistance rates R30 to R60. Once the trapezoidal sheet metal covering was complete, the second step was to coat the remaining 3 sides of the steel girders and supports with the intumescent coating. For reasons of the construction site process and the prolonged weathering of the steel structure, the decision was made in favour of the resistant, solvent-based HENSOTHERM® 310 KS outdoor fire protection system with the corresponding HENSOTOP SB topcoat to protect against moisture and environmental influences during the construction phase.

Contact
Rudolf Hensel GmbH
Till Waterstradt
Tel. +49 40 721062-11
Send email

Architects: Auer Weber Assoziierte GmbH, München
Steel constructer: Vollack Hallen- und Stahlbau GmbH & Co. KG
Owner: City of Lindau
Photos: © PREFA / Croce & Wir | © Vollack Hallen- und Stahlbau GmbH & Co. KG

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