Haus Zeggele in Silz

Energy restoration of a historical residential building

Content Description




Goal of the demonstration project "House Zeggele" in Silz is the connection of energy technological and ecological restoration under consideration of the requirements of urban planning and development and monumental protection.

The object is situated in the center of Silz and is one of the community's oldest buildings. The house has been vacant for many years and is in a state of decay.

The existing object had a useable living area of only 80 m². With the restoration an enlargement of the useable area oriented towards modern housing conditions should be achieved. For this purpose the barn floor had been rebuilt and converted into additional living area. These constructional extensions increased the useable living area to 172 m².

The energy concept incorporates substance-preserving criteria and unites the requirements for the maintenance of the historic structure and the building's appearance with the use of energy improvement opportunities to their full potential. All newly built structural parts are insulated according to low-energy house standards. An improvement of the thermical quality of the outer shell was achieved by a connecting glass-wing in the front of the building. To avoid structural damage component tempering was used. The required thermal heat for the object could be lowered by 60 % compared to its initial state.

Energy generation takes place in various levels. Apart from the wood carburetor boiler with puffer storage a tiled stove has been fitted in the parlor. For reasons of comfort a gas heating system has been installed to insure heating during absence or in case of illness. The energy distribution has been adjusted to the building's structure and thermical quality. It is provided by radiators and floor heating as well as component tempering to keep the building free from structural damages.

The reconstruction measures began in spring 2005 and were completed in May 2007. The planned restoration concept was realized with only minor changes. The building shell is warming up pleasantly because of the constructed interior insulation as well as the component tempering. The loss of energy that is caused by heating of uninsulated walls needs to be accepted so structural components can be kept intact. Moreover, visual reasons and reasons of preservation speak against insulation.

After completion of the restoration works the charm of the small object that had been victim of decay over many years comes to light to its full extent.

Project Partners

Project manager

Heiß Daniel, Walser Silvia

Project partners

  • Energie Tirol
    Alexandra Ortler - Südtiroler Platz 4, 6020 Innsbruck
    Tel.: +43 (512) 589913-23
  • Bauforschung - Denkmalpflege - Revitalisierung
    DI Dr. Peter Knapp - Pacherstr. 4, 6020 Innsbruck
    Tel.: +43 (512) 342285
  • Amt der Tiroler Landesregierung, Abteilung Bodenordnung/Dorferneuerung
    Ing. Stefan Schöpf - Heiliggeiststr. 7-9, 6020 Innsbruck
    Tel.: +43 (512) 508-3849
  • Gemeinde Silz
    Ing. Martin Dablander - Widumgasse 1, 6424 Silz,
    Tel.: +43 (5263) 6219

Contact address

Heiß Daniel
Trankhütte 288, 6426 Roppen
Tel.: + 43 (5417) 20087