In the BioReno project, high-performance bio-based materials and hybrid structural solutions with low environmental impact for renovation are developed and researched between April 1, 2025, and December 31, 2027.

The BioReno project is led and implemented by TAU (Tampere University), XAMK (South Eastern Finland University of Applied Sciences) and VTT Technical Research Centre of Finland. In addition, 20 companies are participating in the project. The project is funded by Business Finland and the above-mentioned parties.

The BioReno project consists of four experimental work packages, one analytical and one administrative work package.

WP 1: Thermal insulation solutions for ventilated roof structures / TAU

  • Determining the effect of additional insulation with bio-based thermal insulation on the U-value and amount of internal convection of ventilated attic floors
  • Material property tests of bio-based blown insulation materials ​
  • Making design guidelines on how to achieve the desired U-value improvement in the attic floor by adding bio-based blown insulation

WP 2: Insulated façade element concept for exterior walls / XAMK

  • Studying the condition and hygrothermal performance of existing exterior walls​
  • Developing and ensuring a cost-effective, moisture- and fire-resistant hybrid retrofit element concept for building façade renovations using bio-based and natural materials for additional thermal insulation

WP 3: Interior insulation solutions for exterior walls / TAU

  • Creating and testing bio-mixed clay renders for internal insulation
  • Determining material properties for the foam-formed insulation created in WP4 and testing its behaviour as internal insulation material

WP 4: Wood-based thermal insulation solutions / VTT

  • Investigating the possibilities of producing sustainable interior and exterior insulation materials from natural fibres and various recycled materials
  • Development of fully wood-based vapour barriers​ with controllable water vapour permeation

WP 5: Life Cycle Assessment (LCA) and Techno-Economic Analysis (TEA) / XAMK

  • Performing an LCA analysis for 4 innovations developed in the project (carbon footprint/carbon handprint)
  • Investigating the applicability of a dynamic life cycle assessment model for Finnish climate reporting of construction projects in such a way that the climate benefits of biogenic carbon storage would be considered
  • Creating a TEA and end-user analysis for the solutions developed in the project

WP 6: Management, dissemination and communication / TAU

  • Coordinating the project and enhancing the exchange of information between work packages
  • Promoting cooperation with international partners and making good use of their expertise
  • Organizing public seminars and disseminate information in advance

BioReno work packages

Finished publications:

BioReno-hankkeessa kehitetään biopohjaisia lisäeristysratkaisuja korjausrakentamiseen (Finnish Building Physics Conference 2025, article in Finnish)

Elinkaarilaskennan kehittäminen biopohjaisessa rakentamisessa (Finnish Building Physics Conference 2025, article in Finnish)

Air Permeability Changes of In-situ formed Attic Insulation Materials Under Compressive Load (NSB 2026 conference article, awaiting publication)

From Emissions to Storage: The Role of Bio-Based Materials in Climate-Conscious Construction (NSB 2026 conference article, awaiting publication)

Optimisation of surface materials for a well-functioning nature-based exterior wall structure in an apartment building (NSB 2026 conference article, awaiting publication)

News related to BioReno: 

BioReno research project develops more environmentally friendly additional insulation solutions for renovation on Tampere University’s website (9 Jan 2026)

Project card on Tampere University’s Website

The principal investigator of TAU is Professor Juha Vinha in the BioReno project. TAU’s core team also includes project managers Eero Tuominen and Mikael Westermarck and university teacher Anssi Laukkarinen.