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DESCRIPTION:

Renew-Wall, developed in 2017 by wood manufacturer Fanti Legnami, is an innovative prefabricated timber façade system designed for easy, scaffold-free installation on existing residential buildings. Combining insulation, customizable finishes, and integration of windows and systems, it enhances both energy performance and aesthetics. Its first real-world application took place on an inhabited apartment building in Trento as part of the ARV project, where Renew-Wall was installed on two facades, with traditional insulation (ETICS) used on the rest—allowing direct comparison. Equipped with sensors, the building enables detailed monitoring of thermal transmittance, temperature, and humidity across different material layers. This side-by-side evaluation offers valuable insights into the benefits of MMC solutions like Renew-Wall, including energy efficiency, installation speed, cost, and environmental impact, compared to conventional methods.

VALUE

Wood-based prefabricated solutions offer fast, efficient, and low-impact alternatives to traditional construction, with precisely engineered components that are assembled on-site—cutting down on time, disruption, noise, and dust. Factory-finished panels further streamline costs and timelines. This approach aligns with the EU’s Renovation Wave and the updated Energy Performance of Buildings Directive (EPBD), both of which aim to accelerate residential retrofits, boost energy efficiency, and drive the transition toward zero-emission buildings—making wood-based MMCs a key contributor to Europe’s decarbonization goals.
Installation Phases of Renew Wall prefab-kit, Trento - Povo Demo
Installation Phases of Renew Wall prefab-kit, Trento - Povo Demo

APPLICATION

The Renew Wall technology can be potentially scaled and applied through a combination of research and commercial efforts. Its effectiveness has been demonstrated in small pilot projects so far, such as the residential retrofit in the Trento demo, but highlighting its potential for large-scale applications. The modular design, quick installation without scaffolding, and customizable features make it suitable for a wide range of buildings and project needs. This innovation could be particularly ideal for social housing projects, as it enables neighbourhood regeneration through large scale retrofitting, enhances living conditions, and promotes sustainability in underserved areas. Beyond technical validation, successful scaling depends on building trust and adoption among clients and stakeholders. Furthermore, larger-scale implementation could allow for reduced manufacturing costs, thus resulting in a win-win scenario for both the manufacturers and the end-users.

POTENTIAL IMPACT

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