The European initiative took part in a virtual workshop the 28th of September to present the results from its 3 demonstrations buildings located in Spain, Norway and Italy

As an innovative project backed by the European Union’s Horizon 2020 programme, the REZBUILD initiative takes part since its beginning at relevant events such as Sustainable Places to engage with its stakeholders and create synergies with other important European projects. 

In the case of this year’s edition of the European congress, which took place in Rome, Italy, between the 28th of September and the 1st of October, REZBUILD Project presented in a virtual workshop the main advances made in its 3 demonstration buildings. The virtual encounter brought together five H2020 projects that are developing modular facade retrofit solutions that integrate on-site renewable energy technologies.

The sites that were shown by REZBUILD in the online session were, on the one hand, a semi-detached house from Spain occupied by 5 people: 2 adults and 3 children. The building is part of the social housing category built in 1949 with a total floor area of 77.84 m2.

On the other hand, REZBUILD presented the results of two apartment blocks located in Norway, approximately 14 km from the centre of Oslo. 

And finally, the third demonstration building shown at the Sustainable Places workshop was a housing estate in the Municipality of Martellago in the Metropolitan City of Venice (Italy). The building is a semi-detached house, an apartment block of social housing typology. The ownership is the Martellago Municipality and it was built between the ‘60s and the ‘70s with a total floor area of 158 m2. It consists of two bedrooms, one bathroom, one kitchen, one dining room, one living room, one storage room and one hall on each floor.

In addition, the REZBUILD participation in the event was aimed to explain which technologies and solutions is the initiative developing to achieve its main goal of defining a collaborative refurbishment ecosystem focused on the existing residential building stock. 

For example, the partners VIAS and CARTIF have developed a 3D printing robot that is capable of printing on both vertical and horizontal surfaces using layer-by-layer techniques in a reduced time for its application in rehabilitation works. And the partner Onyx has developed a new generation of lightweight and flexible shape fiber reinforced composite BIPV material using c-Si and thin fils (CIGS) technologies.

Within the REZBUILD project three different gypsum-based solutions are being developed as well: a gypsum airtightness spray plaster able to meet the strictest test requirements of the different NZEB regulations; an experimental gypsum-based insulating for internal use; and a new generation of façade systems for external insulation intended to be installed over the existing façade. 

These technologies and solutions are complemented by a SAHP system that was designed, fabricated and tested at the University of Nottingham laboratory and that can offer multifunction for residential uses; advanced BEMS prototypes that go further and propose functionalities able to act directly on the inputs and on the outputs without a direct human input; and open DIM libraries of advanced technologies with the aim of providing a ready-to-use and complete set of instruments to any designer or owner wishing to enter the REZBUILD process.

Started in 2017, REZBUILD project is driven by a consortium led by Officinae Verdi Group (Italy). The project is also integrated by Vias y Construcciones (Spain), MAETRICS (Italy), CARTIF (Spain), ESTIA (France), Comunidad de Madrid (Spain), Saint-Gobain Placo Iberica (Spain), ONYX Solar (Spain), SINTEF (Norway), OBOS (Norway), University of Nottingham (United Kingdom), Rimond (Italy) and ZABALA (Spain).