This is how all the block of flat from all over the world should be done. Like I’d say before the PassivHaus principles can be applied to any kind of buildings, either new or old one. Practically after this refurbishment, the heating demand was reduced to 15kWh/m2a. It’s funny, that after completion, the energy supply company came to check the metering, thinking that something might be wrong, since the people suddenly reported dramatically smaller consumptions.
printscreen picture and video source youtube.com