A Comparative Analysis of Traditional and New Construction Methods for External Wall Insulation in Jiangning, Nanjing, China

Abstract This research conducted in Jiangning, Nanjing, China, aimed to examine the effectiveness of traditional and contemporary construction techniques for external wall insulation. The study compared thermal resistance, indoor air temperature, energy consumption, and potential energy savings. The results showed that new construction methods utilizing fiber-based thermal insulation materials displayed superior performance in various aspects leading to improved thermal insulation properties. Based on the comparative analysis presented in this study, it is suggested that incorporating organic insulation materials into new construction methods for external wall insulation can enhance thermal performance and energy efficiency when compared to traditional approaches. Current energy-saving design standards have been raised by more than 50%, highlighting the growing significance of designing buildings with energy conservation in mind within our country's industrial development context. A newly proposed construction program involving integrated insulation panel composite exterior wall systems demonstrates cost-effectiveness with lower costs per square meter when compared to traditional methods. This study provides an analysis of the thermal performance and energy efficiency associated with both traditional and modern construction methods for external wall insulation specifically within Jiangning, Nanjing area. The investigation highlights the importance of considering varying climatic conditions' impact on thermal performance and retrofitting existing structures for enhanced energy efficiency. It leverages insights from sustainable development studies to promote sustainability in the construction industry while prioritizing public safety and compliance with energy-saving regulations.