中瑞零碳建筑项目循环建造

Investment Rating - The report does not explicitly provide an investment rating for the industry. Core Insights - The K.118 case study demonstrates significant potential for greenhouse gas emissions reduction through the reuse of building components, achieving a total savings of 494 tons of CO2 equivalent, which is approximately 59% compared to new components [20][39]. - The economic evaluation indicates that while reused components can be cheaper on a per-component basis, the overall costs may be higher due to additional planning and implementation expenses [37][21]. - The study highlights that the transport of reused components within a 100 km radius has a negligible impact on emissions, with savings exceeding 98% for many components, particularly those requiring thermal processes for manufacturing [19][12]. Summary by Sections 3.4 Cost of 10 Components - The investigation into the costs of ten components reveals that while the actual purchase price of reused components is often low, labor costs for dismantling, preparation, and reinstallation are significantly higher in Switzerland [31][33]. - Components with complex manufacturing processes, such as doors and windows, are more financially viable for reuse, especially if they are easy to salvage [33][21]. 3.5 Greenhouse Gas Emissions - The analysis of greenhouse gas emissions shows that emissions from reused components are significantly lower than those from new components, with reductions often exceeding 90% [19][20]. - The report emphasizes the importance of considering all processes related to reuse, including dismantling, transport, and reinstallation, to provide a realistic assessment of emissions [13][12]. 3.6 Plans, Sections, and Details of the K118 - The K.118 project serves as a practical example of circular construction, illustrating the integration of reused components and the associated processes [29][50]. - The report outlines specific services necessary for the reuse of components, such as dismantling and preparation, which are essential for a successful circular construction approach [29][50].