This essay will address if and how it is possible to reuse and recycle wood waste and CDWW (construction and demolition wood waste). The background will have a short introduction and then be divided into 3 sections. The first section addresses similarities and differences between linear vs. circular economy. The second section will take up bioeconomy and how it is managed in the different countries in the world, and the last part takes up wood waste management. The purpose of this thesis is to investigate from literature if it is possible to reuse and recycle wood waste and CDWW. By reviewing case studies, see if it is possible to implement a practical sustainable recycling worldwide. There are four questions that will be answered to see if it is possible. Those are: 1, Are there enough volumes of wood waste for it to be worth to reusing/recycling it? 2, What opportunities does it provide and how can it affect society, economy, and the environment? 3, Is it worth investing in facilities that only accept wood waste and reuse/recycle the material? 4, How have the trends with wood waste been according to the data collected? The methods that have been used are literature study, qualitative and quantitative methods. Qualitative as an interview has been conducted, and quantitative as data for wood waste in Borås has been compiled. The result showed that there exist enough volumes for it to be worth reusing and recycling, however, the volumes has gone down significantly and are not stable, though this could be argued due to the COVID-19 pandemic and will most likely change and go up in volume within the next few years. There have not been any studies on how the society could be affected by reusing and recycle wood waste, although from an economic and environmental perspective it shows a positive outcome, such as new jobs get created and less deforestation and less reduction of biological diversity. Depending on the type of wood waste the facility receives, it can affect whether it is profitable or not, as the more hazardous chemicals exist in the wood residues, the more difficult and expensive the treatments and recycling becomes.

Sammanfattning Denna studie undersöker möjligheten att använda återanvänt trä från rivningsvirke i prefabricerade fasadsystem, med fokus på att minska bygg- och fastighetssektorns koldioxidutsläpp. Syftet är att med hjälp av finita elementmetoden (FEM) modellera och dimensionera fasadelement som kan användas i FÅTT-projektet och Arctic Center of Energy (ACE) i Skellefteå. Studien jämför mekaniska egenskaper mellan gammalt och nyproducerat trä samt undersöker hur fuktinducerade rörelser påverkar fasadelementen. Studiens resultat visade på att Fasadelement 1 med dimension 70x195 mm i ramen alternativt Fasadelement 3 med 45x145 i ramen var bäst lämpade för projektet. Resultaten från litteraturstudien visar att återanvänt trä kan uppfylla de nödvändiga kraven för hållbarhet och formstabilitet, vilket innebär att det finns stor potential för industriell produktion av fasadelement med återbrukat virke. Denna studie bidrar med underlag och kunskap för framtida utveckling och användning av hållbara byggmaterial inom byggindustrin. / Abstract This study investigates the potential of using reclaimed wood from demolition waste in prefabricated facade systems, aiming to reduce carbon emissions in the construction and real estate sector. The purpose is to model and design facade elements using the Finite Element Method (FEM) for the FÅTT-project and the Arctic Center of Energy (ACE) in Skellefteå. The study compares the mechanical properties of old and newly produced wood and examines how moisture-induced movements affect the facade elements. The results of the study showed that Facade Element 1 with dimensions 70x195 mm in the frame or alternatively Facade Element 3 with 45x145 mm in the frame were best suited for the project. The findings from the literature review show that reclaimed wood can meet the necessary requirements for durability and dimensional stability, indicating significant potential for industrial production of facade elements using recycled wood. This study provides insights and a solid foundation for future development and use of sustainable building materials within the construction industry.