Herzog & de Meuron

The New Ricola Herb Center . Basel

Herzog & de Meuron . photos: © Iwan Baan . + Lehm Ton Erde Baukunst

below photos: © Ricola

Architecture as Landscape
The Kräuterzentrum is built largely out of locally sourced earth; it is like a geometrical segment of landscape with its dimensions and archaic impact heightened by the radical choice of material. Herbs and earth define the purpose-built, distinctive character of the center, following in the footsteps of Ricola‘s other buildings: the fully automated storage building of 1987, the production and storage building of 1993 in Mulhouse-Brunstatt with its screenprint façade and the glazed marketing headquarters of 1999 in Laufen. These buildings not only embody Ricola's exceptional philosophy and commitment to the environment, they each make a striking contribution to their locations.
The delivery entrance and warehouse sections of the herb center’s façade are monolithic, with the loam walls visible in the interior as well. The prefabricated earth elements are manufactured in a nearby factory out of ingredients extracted from local quarries and mines. Clay, marl and material excavated on site are mixed and compacted in a formwork and then layered in blocks to build the walls. Thanks to the plasticity of the loam, the seams can be retouched giving the overall structure a homogeneous appearance. To arrest erosion caused by wind and rain, a trass mortar achieved mixing volcanic tuff (trass) with lime, is compacted every 8 layers of earth directly in the formwork. Large round windows illuminate the rooms. The façade is self-supporting and simply linked to the concrete loadbearing structure of the interior.
Energy and Sustainability
Energy and sustainability are not simply treated as technical auxiliaries; they are built into the architecture and essential features of the project as a whole. Earth as a material that regulates humidity has a positive, sustainable effect on the use of energy and overall climate control. Photovoltaic modules on the roof and the use of waste heat from the production center nearby also contribute to improving the ecological balance of the Kräuterzentrum. Visitors will be able to watch the processing and blending of the herbs in a special visitor center on the top floor.
Herzog & de Meuron, 2014

Herzog & de Meuron Team:
Partners: Jacques Herzog, Pierre de Meuron, Stefan Marbach (Partner in Charge)
Project Team: Michael Fischer (Associate, Project Director), Nina Andrea Renner (Project Manager)
Zdenek Chmel, Wolfgang Hardt (Partner), Harald Schmidt, Hendrik Steinigeweg, Luca Ugolini, Freya Winkelmann
Rammed Earth Facade Specialist:
Lehm Tom Erde Baukunst Gmbh, Schlins, Austria
Martin Rauch, Thomas Honermann, Hanno Burstcher

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