Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

Government goals of the Republic of Korea is to reduce greenhouse gas emissions by 37% compared to BAU, it was discussed by COP 21 in December 2015. In this change in the surrounding environment, the construction sector need to develop and supply new insulation materials to satisfy thermal performance for zero energy building while minimizing insulation thickness such as Vacuum Insulation Pannels (VIP). And, it is necessary to establish the Korean Standards of VIP in order to secure the stable quality and performance of VIP in the building and housing market. Under this background, the purpose of this study was to analyze effective thermal conductivity by envelope material types of VIP. In VIP’s manufacturing process, envelope material was folded at 4-side edge of VIP, for that reason, it occurs in the edges that phenomenon called thermal bridge. This phenomenon was different by envelope material types of VIP and reduced thermal performance of VIP. Therefore, it is very important to plan building insulation design with not central thermal conductivity but effective thermal conductivity of VIP. Otherwise, the heating and cooling energy consumption of building will increase more than expected.