SciTransfer
RE-SKIN · Project

Circular Energy Retrofit Kit for Mid-20th Century Multi-Storey Buildings

constructionPilotedTRL 7

Imagine giving an old building a high-tech 'skin' that works like a giant battery and thermos. It replaces old roofs and walls with recycled materials that generate electricity and keep the inside warm or cool. It's like upgrading an old car to an electric one, but for entire apartment blocks.

By the numbers
90%
primary energy consumption reduction
90%
reduction of operational CO2 emissions
60%
reduction of CO2 in construction phase
30%
reduction of CO2 in decommissioning phase
1.4 billion
m2 of target net floor area in Europe
The business problem

What needed solving

Older multi-storey buildings have poor energy performance and high carbon footprints. Traditional renovations are often too slow, expensive, and rely on non-sustainable materials.

The solution

What was built

A multi-technology renovation kit consisting of a hybrid PV-thermal roof, bio-based self-supporting façade panels, and a solar-assisted DC heat pump system. A cloud-based decision support system for energy management was also developed.

Audience

Who needs this

Energy retrofit contractorsMunicipal building managersCommercial real estate developersSustainable construction material suppliers
Business applications

Who can put this to work

Construction & Renovation
mid-size
Target: Energy Retrofit Contractor

If you are a contractor dealing with inefficient mid-century masonry buildings — this project developed a self-supporting cladding and roof kit that allows for quick assembly without scaffolding. This reduces labor time and can cut primary energy consumption by about 90%.

Real Estate Management
enterprise
Target: Commercial Property Owner

If you are a property owner dealing with high utility costs in older tertiary buildings — this project developed a hybrid PV-thermal roof and DC heat pump system. This integration can reduce operational CO2 emissions by about 90%.

Sustainable Materials
SME
Target: Bio-based Insulation Manufacturer

If you are a manufacturer dealing with the shift toward circular economy regulations — this project developed a system using recycled and bio-based materials for building envelopes. This provides a validated use case for repurposed components in large-scale urban retrofits.

Frequently asked

Quick answers

What is the estimated cost or price of the RE-SKIN system?

Based on available project data, specific pricing is not provided, but the project aims to improve the affordability of renovations.

Can this be scaled to a large number of buildings?

Yes, the target market includes approximately 1,000,000 residential and 500,000 public/tertiary buildings across Europe, covering about 1.4 billion m2 of floor area.

Who owns the IP and how is licensing handled?

Based on available project data, the project contributes to standardization and certification activities, but specific licensing terms are not listed.

How does the system integrate with existing building infrastructure?

The HVAC system uses smart-fancoils designed to connect directly to existing heating piping, and the façade panels house new wiring and earthquake sensors.

What is the timeline for deployment?

The project runs from 2023-01-01 to 2026-06-30, with demonstration phases involving four pilot sites for data validation.

Consortium

Who built it

The consortium is heavily industry-weighted with 12 industrial partners (57% ratio), including 11 SMEs, suggesting a strong focus on commercial viability. With 21 partners across 10 European countries, the project has the geographic reach to validate the system across different climatic zones and regulatory environments.

How to reach the team

Contact Politecnico di Milano regarding the RE-SKIN technical systems

Next steps

Talk to the team behind this work.

Contact us to connect with the RE-SKIN industrial partners for licensing or pilot collaboration.