Wednesday, January 6, 2016

Prefabrication experiments - 86 - Kunio Maekawa's PREMOS

Post World War II housing developments in the United States were characterised by on-site standardisation of construction and the politics of accessible procurement methods.  Developers such as William J Levitt were successful as they controlled purchasing and construction. The small American single-family dwelling drove this type of standardisation and propelled the industrialisation of specific components rather than the manufacturing of complete buildings. As this type of development became the model in North America, Europe, Scandinavia, the Soviet Union, and Japan were coping with their own housing crisis. War reparations, rebuilding and restructuring were pushing for new models of development in every country.

Underwritten by governments, housing programs characterized the post war housing industry and showcased potential for innovative cross breeding of architecture, housing and industry. Japan for instance had lost over thirty percent of its housing stock during the war and looked to quickly restock and imagine productive ways to rebuild. Industry was a major component of the rebuilding programs. Intensely, wartime industries were commanded to serve the civilian economy. This was the case in many countries and the foundation of a manufactured building partnership in Japan.

Kunio Maekawa, a disciple of Le Corbusier who had also interned for the Wright inspired architect Antonin Raymond brought the modernist dream of the factory made house to Japan. The Manchurian Aircraft Company was repurposed for housing after it had closed down following the war. PREMOS - Prefabricated Maekawa Ono Kaoru San'in Manufacturing was the result of this ambitious project, which united Industry, academia (Kaoru Ono, Tokyo University) and Maekawa’s aspiration. The company produced its first standardised panelized structure in 1946 and led to over one thousand units before the company shut down in 1952.


The flagship unit, PREMOS 7 presented an area of fifty-two square meters and a simple wood construction building system that combined Honeycomb panels and plywood sheeting with wood trusses for floors and roofs. The PREMOS design standards followed Japan’s long history of standardisation in planning. The Ken, a standard dimension of precut wood in Japanese construction, and the tatami mat contribute to a modular heritage that ingrain standardisation and make it the social norm. The PREMOS project was the forerunner of the thriving contemporary prefab industry in Japan.

Premos 7 - components






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