Integrated Structural and Energy Retrofitting Based on Cementitious Composites and Phase Change Materials

The retrofitting of existing buildings is crucial for improving their structural safety, reducing damage, and enhancing energy efficiency while maintaining their distinctive features. Seismic retrofitting and thermal energy retrofitting are two effective approaches that can be integrated to achieve enhanced seismic performance and reduced energy consumption. Seismic retrofitting aims to strengthen buildings against seismic forces, while thermal energy one involves measures that enhance the building envelope’s performance to reduce energy consumption. The use of phase change materials (PCMs) in building construction has gained significant attention due to their potential for energy efficiency and sustainability. By correctly incorporating PCMs into construction materials, the thermal performance of existing buildings can be improved while preserving their unique characteristics. The integration of PCMs with structural retrofitting techniques, such as textile-based composites, provides an attractive option for enhancing both seismic and energy retrofitting simultaneously, resulting in improved seismic performance and energy efficiency for existing buildings. Integrated retrofitting is an approach that evaluates the technical and financial aspects of retrofitting to achieve a balance between energy efficiency and cost-effectiveness. The primary objective of this review paper is to examine the advantages of incorporating PCMs in the process of integrated structural and energy retrofitting. Additionally, this paper aims to provide a comprehensive overview of the various retrofitting methods that can be employed to enhance the seismic performance and energy efficiency of existing buildings.