TU Dresden, refurbishment of Willers-Bau, 1. BA (wing B and connector B); Renewal of windows through wooden windows with insulating glazing; Installation of internal capillary-active mineral insulation; Insulation of the floor slab of lounges on the basement floor; Insulation of the top floor ceilings of main building wings (accessible pressure-resistant insulation on attic floor); Insulation of the roofs of the connecting structures; Installation of new adjustable heating, ventilation and air conditioning technology, replacement of all existing bulbs with energy-spring bulbs with LED technology