Extension Multi-family house LM
2020-21
Type Extension multi-family house (3U), low-energy retrofit
Place Munich
   
Client private, rental apartments and own use
Energy Effizienzhaus (Retrofit), Attic (new building standard regarding GEG)
/climate protection FES München, CO2 Bonus
  before CO2 Eqv. 17945 kg/a
  after CO2 Eqv. 3504 kg/a
   

The multi-family house (1968, 2 Units) had a rotten roof. The needed replacement of the roofstructure was taken as an opportunity to create more living space, to lower the energy-demand and to transition towards a heating system based on renewable energies (water-heatpump, PV). The new roof was raised in order to create a third living unit at the attic.

The new construction was built as timber-construction.

Due to the taken measurements the energy-demand was reduced on approx. 39% of the former energydemand for heating an warmwater - even with the increased living surface. The CO2 emissions were reduced to 9,0 kg/m2a.