Mariahilfer Straße 20
Renovation of thermal-energetic, building technology and fire protection infrastructure
A 1070 Vienna, Mariahilfer Straße 20
office and commercial building, U4 to O8, approx. 16.300 m2 GFA
general planning and local construction supervision
2009 – 2014 (completion)
costs on request
winner of the "Schorsch" award - MA19 exhibition
see catalogue "Gebaut: 2010 - 2015", Ausstellung der Magistratsabteilung 19, MA 19, 2015, p. 262 - 263.
Renovation of thermal-energetic, building technology and fire protection infrastructure of the facades, terraces, flat roofs and stairways.
Heating demand offices (before) = 136,5 kWh/m2/a, heating demand (after) = 7,5 kWh/m2/a.
Renewal of the building technology: heating, ventilation, cooling, photovoltaic system (13,75 kWp), renovation and extension of 2 lifts, the riser, power distributors and the illumination.
Street facades MH 20 and KSG 1: EI90 parapets, 20 cm mineral wool, fleece, rear ventilation, bronze rib mesh panelling.
Courtyard facades: reinforced concrete, 20 cm mineral wool + reinforced silicate plaster.
Thermally insulated coupled aluminium windows, three-layered insulating glass and interconnected frames, blinds with electromechanical drive and superordinate control for minimizing the energy input in summer.
lecture Fenster-Tag [TU Wien]