Swiss cough drop maker Ricola may have terrible commercials, but it’s also updating its production facility with sustainable buildings.
Herzog & de Meuron recently completed a massive building with rammed earth walls for Ricola, according to TreeHugger. The Kräuterzentrum, or herb processing center, is where locally-grown ingredients are stored and processed.
Rammed earth is about as natural as it gets. Earth is compacted into blocks, arranged into a wall, and then lined with mortar to prevent erosion. For the Ricola herb center, the dirt was excavated and assembled into blocks at a facility near the building site.
Benefits include high thermal mass, which helps stabilize temperature and lessen the amount of energy needed to heat and cool the structure, and materials that are locally-sourced and sustainable.