Monday, February 24, 2014

Prefabrication experiments - 4 - The «Eugène Mopin» system for housing


The industrial revolution increased demand for low-cost housing for the masses migrating to these pulsating urban centres. Factories, train stations, exhibition halls, urban markets, were all new building types associated with this economy based on the continuous production of goods.

The «Taylor» model of labor organization also fostered a need for housing a new work force. The increased need for housing, the rapid urbanization, and the exploration of new materials and methods associated with industrialization created a fertile ground for new systems for housing. Modern architecture and its radical dissociation from historic models can be traced to this fertile ground of experimentation.

Materials like steel and concrete associated with the new production capacity were relatively new to the building industry at the end of the 19th century. The experiments performed on these materials at the turn of the 20th century were to transform the building culture from on-site building to on-site assembly of off-site produced components.

The experiments performed by builders, architects, engineers, and inventors of the time influenced generations to radically modify their construction strategies. When we analyse certain modern prototypes associated with these radical changes, «LeCorbusier’s Unité d’habitation» or «Mies Van der Rohe’s steel and glass towers» the precedents these experiments were based on are often left out of the analysis as these prototypes were conceived in a vacuum. It is in fact often previous experiments or failures that feed the heuristic nature of building culture.

One of the interesting systems, that proposed an increased industrialization of building was the «Mopin steel and concrete system». Invented by industrialist Eugène Mopin in the early 20th century, the structural system was based on a grid of light-steel components encased in concrete. The envelope of thin prefabricated concrete panels attached to the steel frame was based on a standard and modular grid. The grid offered a flexible pattern for planning. This rational approach to building offered a very austere vision of mass housing. The system was used in several multi-story buildings in the early 1930’s and was a major par of France’s contribution to the industrialization of building. (see the prefabrication of houses, 1951).


Many of the buildings have since been demolished, as the concrete covering did not offer sufficient fire or corrosion protection for the light steel frame. Although not a success, the Mopin system, offers a view into the genesis of industrialized building and its two important components; the separation of structure and envelope and a grid used as a tool for standardization and modular coordination. These elements used as tools for industrialization of building are also two major components of modern architectural theory.


The «Mopin» system of concrete and steel _ photo from housingprototypes.org

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