Evaluation and pre-qualification of low impact bio-based inner wall-systems – step 1

The project ran between December 2022 and June 2023..

The project consisted of two work packages in which package 1 referred to the construction of a control program for validation of the construction with regard to technical function; producibility; and sustainability, adapted for office buildings. Work package 1 concerned the identification of adequate internal wall systems based on low-value bio-innovative materials that are deemed to meet the requirements of the verification programme. Work package 2 was intended to pre-qualify the developed systems with regard to the requirements set out in the control plan and through test assembly and preliminary evaluation of the work environment and buildability. Work package 2 was not implemented in its entirety as it was not considered feasible within the framework of the project due to limited adequate material availability, time frame and changed organisation.

Conclusions from the project were that the system perspective is a favourable route for large-scale implementation of bio innovative materials. The developed control programme is an adequate tool for evaluating new systems, but that pre-qualification as planned was not feasible within the framework of the project. The problem of identifying substitutes for plasterboard with adequate technical and surface aesthetic properties was judged to be the weakest link in the concept. Partly substitutes of low value biobased materials is highly possible today but no fully substituted system was identified.


NCC Sweden AB and LTH, Faculty of Engineering.


The project’s total budget was 300 000 SEK.