Breathing façade instead of ventilation system

Breathing façade instead of ventilation system

Renovation of Kreishaus Siegen

  • Technical renovation
  • Removal of induction air conditioning
  • Window ventilation instead of mechanical ventilation
  • Improvement of fire protection
  • Renovation of the windows and insulation of the façade
  • Desired outcome: Cost-effective revitalization of model character

Which façade for a high-rise building?

Power72% (annually)
Heat72% (annually)
CO21.600 tons or 65% (annually)
  • Power demand and peak load dropped sharply
  • Energy certificate in new construction quality
  • Primary energy requirement 31% better
  • Building shell 57% better


Kreis Siegen-Wittgenstein
gmp Architekten, Aachen
gpa Goebel Projektsteuerung Airport Consulting, Münster
Ebert Ingenieure, Nürnberg u. Düsseldorf
KonTec Fassadenplanung, Dormagen
Fassadenlüfter FSL GmbH & Co. KG, Neukirchen-Vluyn