Återbruk av byggprodukter i nybyggnation av bostäder - en studie av klimatpåverkan, kostnad och genomförbarhet

Sammanfattning: In 2018 the Swedish construction and real estate industry accounted for 21 % of the country’s greenhouse gas emissions. In 2045, Sweden aims to reach net zero emissions of greenhouse gases. This study aimed to analyse the possibilities and the potential of reuse of construction products in new residences based on the aspects climate, cost and feasibility. Two products were selected, one due to being the product that generates the most greenhouse gas emissions and the other due to being the most cost-driving product. Those two products were aluminium profiles and radiators. Through reuse of aluminium profiles, the study resulted in a possible reduction of 24-99,5 % of greenhouse gas emissions and a change of the costs varying between a 74 % decrease and a 14 % increase. For radiators, a reduction of 16-98 % was possible for greenhouse gas emissions along with a potential cost change reaching from a 72 % decrease to a 11 % increase. The practical feasibility of reuse of aluminium profiles and radiators is considered good but the regulations and guidelines still have development potential. Finally, the result from the study’s survey shows a positive attitude from the potential customers of new residences for reused products in their homes. This study’s conclusion is that reuse of construction products does not, at the moment, result in economic profitability. However, it does result in a reduction of climate impact along with an opportunity to meet new types of climate related customer demands.