The house on Riederalp was completed in 2016. The construction effort was enormous, as weather conditions only allow building there from June to November. Architect Neidhart paid particular attention to heat supply through solar thermal energy.

Overall, three quarters of the heat used to heat the house and provide hot water comes from solar collectors and one quarter from passive solar energy. Summer shade is provided by balconies at the front of the building (solar architecture). The effort and expense have paid off. The unobstructed view of the Alps and the Matterhorn in the middle of a popular skiing and hiking area is spectacular. Since moving in, a retired doctor has been living in the lower flat on the ground floor. He also particularly appreciates the room humidification system because of his many years of experience with patients suffering from dry indoor air.

When the air is too dry, the skin becomes flaky and cracked, and the mucous membranes in the nose and throat, as well as the eyes, dry out and become irritated. This makes us feel uncomfortable, less focused and more susceptible to respiratory diseases. In addition, recent studies by the renowned Yale University in the United States have shown that low indoor humidity significantly increases the spread of influenza viruses and thus the risk of falling ill. Very low indoor humidity occurs when dry outside air flows into warm rooms during cool seasons through ventilation systems or open windows without regulated humidification. This often results in relative humidity levels of well below 20% in such ventilated rooms, triggering the negative symptoms described above. From a medical point of view, a relative humidity of between 40 and 60% at a room temperature of 20 to 24 °C is considered ideal in terms of both health and comfort /1/. These problems are solved in non-residential buildings by controlled humidification of the outside air in central ventilation systems. The cool, dry outside air that is drawn in is humidified intensively with water vapour or finely atomised water droplets so that the desired, comfortable and healthy indoor air humidity is achieved in the rooms supplied with fresh air.