Skip to main content

Mehr.WERT.Pavillon - Added Value Pavilion

Federal Garden Show 2019 in Heilbronn, Germany

Students, researchers and professors of KIT Karlsruhe, together with the architects’ office 2hs, realize a circular pavilion from recycling materials at the Federal Garden Show 2019 in Heilbronn, which was ceremoniously opened on April 17th in the presence of German President Frank-Walter Steinmeier and State Minister Winfried Kretschmann.

The ‘Mehr.WERT.Pavillon’ is part of the so-called ‘Mehr.WERT.Garten’, a partner project of the Ministry of the Environment of Baden-Württemberg with the Entsorgungsbetriebe of the city of Heilbronn, and is located in an experimental area of the Federal Garden Show, the Inzwischenland. The inauguration of the pavilion and garden will take place in its own setting on 02 May 2019 with Environment Minister Franz Untersteller and Building Mayor Wilfried Hajek.

The pavilion and garden explore the question of how we and the generations after us can live well and how we can develop our economy positively while the natural resources of our planet become scarcer.

The pavilion was designed and built by students of the Karlsruhe Institute of Technology (KIT) in collaboration with the professorships for Sustainable Construction (Dirk E. Hebel, Felix Heisel and Karsten Schlesier), Structural Design (Matthias Pfeifer) and Building Technology (Rosemarie Wagner) as well as the office 2hs with Lisa Krämer and Simon Sommer. "It was important to us that sustainable architecture must be attractive and relevant. Especially within the construction sector a rethinking is possible, because we are able already today to build according to the principles of a circular economy– we just have to decide to do it," says Dirk E. Hebel, Professor for Sustainable Construction at KIT about the project.

The project Mehr.WERT.Pavillon

demonstrates an innovative and meaningful use of existing resources. All materials used in the project have already gone through at least one life cycle, either in the same or a different form. Likewise, all materials are of the same type and can be completely separated again after dismantling. No adhesives, silicone joints, paints or other impregnations are used in the project. "The project thus makes use of the existing urban mine on the one hand, but at the same time represents a material store whose resources will be fully available again after the Federal Horticultural Show," explains Felix Heisel, project manager and partner in the 2hs office.

Conceptually, the project is based on a material stratification: the load-bearing structure is made entirely of steel, most of which comes from a dismantled coal-fired power plant in North Rhine-Westphalia. The façade shows recycled glass materials from the glass container, such as MAGNA GLASKERAMIK® or foam glass. The floor areas in the garden and under the pavilion are covered with mineral demolition materials, which come directly or in processed form from recycling yards. The furniture and fixtures are made of recycled plastic materials.


The façade mainly shows two different products made of recycled and cullet glass. Magna Glaskeramik is made of 100 percent recycled glass and can be returned to the glass cycle after use. Transparent, green or brown bottle glass is fused into Glaskeramik by a sintering process, which preserves the colour and shape of the broken glass and creates a special aesthetic.