Fagus Factory, a shoe last factory in Alfeld on the Leine in Germany [1925] by Walter Gropius and Adolf Meyer

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"The main building was erected on top of a structurally stable basement with flat caps. Nonreinforced concrete (compressed concrete), mixed with pebble dashing was used for the basement walls, an unfortunate blend unable to support great individual loads. From the basement upward, the building rose in plain brickwork with reinforced wood floors. The ceilings were underpinned with a formwork shell and finished in rough-cast plaster on the services installation side. The floors were composed of planks on loose sleepers – that is, sleepers that were not fixed between the floor joists. Hence, the ceilings in the main building were not continuous shears and thus were unable to fulfill the necessary bracing function." Jürgen Götz