Comparative Study on Energy-Saving Effects of New Lightweight Composite Thermal Insulation Structural Component Joint Scheme and Traditional Thermal Insulation Board Joint Schemes

Abstract

The construction accuracy and sealing protection capacity of thermal insulation board joint nodes are the core factors affecting the thermal performance of building exterior wall thermal insulation systems, which directly determine the exertion of energy-saving benefits and the service life of the system. Taking the TG tenon-groove intelligent joint scheme of the new lightweight composite thermal insulation structural component for civil air defense construction as the research object, this paper carries out a systematic comparative study with traditional thermal insulation board joint schemes such as flat head joint and tongue-and-groove joint, analyzes from the aspects of joint structure design, construction accuracy control, thermal performance performance and actual engineering energy-saving effects, and quantifies the technical advantages and energy-saving value of the new joint scheme combined with measured data and engineering cases. The research shows that the new TG tenon-groove intelligent joint scheme eradicates the thermal bridge problem caused by human errors from the structural and construction levels, greatly reduces the heat loss and water seepage risk of plate joints, the annual comprehensive energy consumption of supporting buildings is reduced by 8%~20% compared with traditional joint schemes, and the service life of the thermal insulation system is extended by more than 50%. It provides practical reference for the technical optimization and scheme selection of the joint link of building thermal insulation engineering, and promotes the development of building thermal insulation and energy-saving technology towards high precision and long-term effectiveness.