Main Article Content
Traditional dwellings in Suzhou have a long history, but there are some shortcomings in thermal environment and energy saving. In order to respond to the sustainable development strategy, this paper takes Suzhou traditional dwellings as the research object, analyzes the indoor and outdoor temperatures of typical days in winter and summer, and puts forward 16 renovation schemes by orthogonal experiments on the premise of protecting the style and features of dwellings. DeST software is used to simulate energy consumption, and the best scheme is selected by comprehensive economy and energy saving rate, and the indoor temperatures before and after renovation are simulated and compared. The research shows that the best renovation scheme is: 100mm EPS insulation board for exterior wall, 80mm EPS insulation board for roof and 9mm ordinary insulating glass for exterior window. After transformation, the energy saving rate is 38.6%, the net present value is 19,775.72 yuan, and the static investment payback period is 9.5 years. After renovation, the indoor temperature increased by 3.9℃ in winter and decreased by 2.1℃ in summer, which effectively improved the indoor thermal environment.