Effect of the solar radiative properties of existing building roofn materials on the energy use in humid continental climates

摘要

The use of highly reflective and emissive roof materials can decrease the urban temperature. These cool roof materials might increase the heating demand, while decreasing the cooling demand. In humid continental climates, particularly, increased heating energy might be greater than the saved cooling energy.n In this study, small scale models of each layer's temperature and heat-flux were measured in the winter season and the energy performance was evaluated by the roof's solar radiative proper