Here’s an outline of the history of our company, RINN XI. You can also find out more about Heinrich Rinn’s original basic ideas about the creation of the revolving house “DrehHaus”.

The history of RINN XI

In 1899, Wilhelm Rinn III and Karl Volkmann I started operating a carpentry with a saw mill. They started sawing and chopping tree trunks into square timber and beams by hand in Hagwiesen. After just a short time, they got a steam engine and timber circular saw. Carpentry work was done in Heuchelheim and the local area.

Business was disrupted during the First World War and was then continued after the war had ended by Wilhelm Rinn III. The timber yard was now in Friedrichstrasse.

After the death of Wilhelm Rinn III in 1928, his son, Wilhelm Rinn XI, took over the company and moved to Feldstrasse in 1935. During the course of this relocation, a new log saw frame and new wood processing machines were installed. Staff numbers then started to increase, from 4 to 5 journeymen.

Business almost came to a standstill during the Second World War. However, the factory equipment was still in place and was used again immediately after the war had ended, as lots of repair work was required due to bomb damage. Staff numbers quickly increased to 10 to 15 employees, because of repatriates and people displaced by war.

The three sons of Wilhelm Rinn XI—Karl, Heinrich and Ernst—entered the family business as partners in 1945. However, after training to be an architect, Ernst Rinn left in 1955.

                   Jürgen and Christopher Rinn with a painting of the carpentry in 1949

The carpentry’s 50 years of existence was celebrated in 1949. Even then, it still employed staff from the time of the First World War. There were now around 20 employees.

The upward development now continued. In addition to traditional carpentry work and prefabricated wood products, engineered wooden structures were also made. The company was involved in lots of interesting building projects, such as football stadia and motorway bridges, throughout the entire central Federal area between Mannheim and Göttingen and in West Berlin.

After Wilhelm Rinn XI left in 1960 due to incapacity to work, Karl and Heinrich Rinn took over managing the company.

Wilhelm Rinn XI died in 1969.

The timber mill, which was regenerated in 1970 and the 1200m2 assembly hall and the company’s own construction office allowed rational execution of timber construction work.

Karl Rinn died in 1979 and Heinrich Wilhelm Rinn took over the sole management of the company.

The initially high demand for carpentry and timber constructions waned in the 60s and 70s because of a preference for concrete and masonry constructions. The company remained unaffected by the economy because it was not specialised and instead did everything from the smallest hut to large construction sites e.g. motorway bridge construction.

In 1992, Heinrich Rinn transferred company management to his sons, Jürgen and Christopher Rinn. The company is now managed as a fourth generation family firm.

The modernisation of the company and its adaptation to technological requirements made further growth and establishment on the market possible. A CNC controlled assembly plant was installed in 1991 and 1999. Several CAD jobs then followed.

Even the store fire in 1996 could not halt the steady growth of the company. The fire resulted in around 2 million German Marks of damage.

Between 1996 and 1996, the unique revolving house “DrehHaus” was built as a unified, ecological and energy optimised home concept.

In 1999, the company celebrated its 100 year anniversary. By this point, there were 33 employees and the company was able to train 3 apprentices a year.

A house for the future

Our natural resources are going into decline in a relatively short time. The real costs have to be paid for the energy that comes out of our plug sockets. Using the sun and rain, the revolving house allows low energy operation with no limits to design and use.”

Heinrich Rinn

The construction and operating costs are nevertheless still comparable with the costs of conventional buildings. The roof surface of the revolving house can be used to generate electricity with photovoltaics.

Use of rain water, solar water heating and passive sun use through window arrangement are already practicable today and used in the revolving house. Heat insulation corresponds to passive house standards.

The building can be moved to follow the sun’s position because it is easy to rotate, using a 0.18 kW electric motor or the exercise bike. Any other building positions are also possible at any time. For example, a group of revolving houses could communicate and turn their open sides towards each other. The closed sides can be turned towards storms and intense heat.

The balconies can be turned away from the wind or into the sun, so better use can be made of solar energy (which could also appeal to the gastronomy industry).

The circular layout that I have chosen creates the largest usable surface with the smallest external wall area. The position of the staircase minimises the traffic areas (corridors) within the building.

A constantly changing panorama with a view through the large window, the outward-looking design of the inside rooms, the harmonious overall appearance of the building and the many other advantages make living in the revolving house an experience. Whether you want the warmth of the sun in cold places or shade in the tropical parts of our earth, it’s all possible with the revolving house “DrehHaus”.

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