Title Reduction Effects of Heating and Cooling Loads on Smart Glazed Facade Used for Green Remodeling towards Aged Houses
Authors 김재향(Kim, Jae-Hyang) ; 한승훈(Han, Seung-Hoon)
DOI https://doi.org/10.5659/JAIK.2026.42.3.311
Page pp.311-318
ISSN 2733-6247
Keywords Aging Houses; Smart Glazed Facade; Smart Window; Responsive Facade
Abstract This study quantitatively analyzed the changes in heating and cooling energy loads resulting from envelope performance conditions and the application of a smart glazed facade in single-family houses built before the 1990s, using EnergyPlus simulations. Insulation reinforcement showed approximately 25.7 percent to 31.3 percent reductions in energy loads, while Low-E windows achieved 6.2 percent to 30.3 percent and the smart glazed facade demonstrated 17.4 percent to 44.3 percent reductions. The smart glazed facade was evaluated as achieving excellent performance by simultaneously providing dynamic transmittance control and seasonal optimization of solar heat gain. These results confirm that the smart glazed facade is an effective remodeling option for improving the energy performance of aging single-family houses.