REZBUILD facilitated the integration of innovative technologies in the construction sector in order to pave the way towards an annual renovation rate of 2,5% instead of the baseline rates, lower than 1%. The aim was to develop one refurbishment ecosystem based on the integration of cost-effective technologies, business models and life cycle interaction for deep NZEB renovation to diverse residential renovation typologies and interconnecting both, building renovation stages and stakeholders. This ecosystem targeted the fulfilment of three KPIs:
1) A deep renovation rate of at least 60% of primary energy reduction, as a result, the application of a decision tree strategy created from the combination of united principles of the novel sustainable architecture and NZEB design concepts,
2) A reduced installation time by at least a 30% of timesaving in comparison with a traditional refurbishment works, and
3) A rapid payback period of a maximum of 12 years of the best retrofitting technology package installed in the residential building.
The project was funded under the Horizon 2020 research and innovation programme.