Byggbranschens klimatutmaningar för nyproduktion av småhus i framtiden

Sammanfattning: In 2017, Sweden adopted a climate policy framework consisting of a climate law, climate objectives and a climate policy council. The target outcome for Swedish greenhouse gas emissions is determined to have no net emissions by 2045. The purpose of the thesis is to investigate which parts in a production of a new small scale house have the most climate impact, what measures can be taken to reduce these and how the industry should achieve emission neutrality by 2045. To address the purpose of the thesis a qualitative literature review and interview research were conducted. The key findings, conducted from an interview survey with actors in the industry, indicated that it is the materials used during the production phase that have the most impact on the climate, especially the use of concrete. To reduce climate impacts from materials, the main solutions that were found were the use of life cycle analysis (LCA) during the design and planning stages. The use of LCA will identify and future avoid the use of specific materials with high climate impact. Regarding how the industry should achieve emission neutrality by 2045, there was a differentiation among the interviewed. Some respondents thought that emission neutrality will be reached with a bottom-up approach, where no governance is required. While the other part of the respondents rather though that governance will be needed through a top-down approach, with administrative instruments such as legislation, regulatory requirements and guidelines.