Multi-stakeholder collaboration in the building sector for building material reuse projects - Case-studies in Denmark

Sammanfattning: Reuse of building materials is gaining increasing interest in Denmark as a result of policy developments. The thesis aims to describe what actors find important regarding collaboration in investigated Danish projects involving reuse of secondary building materials and to relate these findings to stakeholder interdependency patterns and institution characteristics of the building industry. Five in-depth case studies were conducted whereby key project actors were interviewed. The thesis includes a literature review on policy developments regarding resource efficiency, on innovation in the building sector, and on collaboration. Interview results were analyzed using a framework consisting of 9 factors of successful collaboration: shared vision; mutual benefits; sharing risks; ability to compromise; the existence of trust; new partnerships and inclusion of affected members of the community; quality and transparency of information exchange; joint decision-making; and available additional resources. The analysis gives insight into collaboration practices in building material projects. Among others, it was found that relationship patterns in the examined cases showed a difference in many ways as compared to general relationship patterns in the industry. Results underline the necessity for systemic changes in the industry to facilitate reuse. The description of collaboration in building material projects may be of value especially to industry actors, who wish to engage in reuse. The findings can also be useful for policymakers and may contribute to building further research on the issue.