Evaluating Green Roof Performance in Korea: Heating and Cooling Load Impacts Under Future Climate Scenarios

초록

Climate change and urbanization are increasing the energy demand of buildings, which emphasize mitigation strategies such as the Green Roof (GR). This study evaluates the impact of GR on heating and cooling loads in mid-sized office buildings across ASHRAE climate zones 3A-6A in South Korea. Using EnergyPlus, simulations of old and modern buildings were conducted under current and CMIP6 model-based future climates (2050, 2080). The results of the study show that while GR consistently lowers the heating load in all climate scenarios, the cooling effect is minimal or potentially negative in highly insulated modern buildings. These findings underscore that the efficacy of GRs is contingent upon thermal insulation performance and prevailing climate conditions. © 2025 Building Simulation Conference Proceedings. All rights reserved.