Good constructional properties
The concrete home is an experiment. In his own house, he took the abilities and advantages of light concrete to the extreme. “Through the use of aggregates, light concrete achieves insulation values that allow for single-wall construction. In addition, light concrete is soundproof and promises a good indoor climate, since the material can compensate for fluctuations in humidity. I wanted a house that would be completely built from concrete.” Yet working with light concrete does have its drawbacks. The material needs to be handled in a narrow time window of about 35 minutes. In spite of the high proportion of porous aggregates, a properly smooth and homogeneous surface was achieved. To protect against frost damage, dirt as well as algae growth, the house was then coated with a hydrophobic concrete glaze with a deep anthracite color.