Measurement and Analysis of Indoor Thermal Environment of Regeneration Space of School-Run Factory in Winter: A Case Study on the Architectural Design Studio in NO.246 Guang Yan Road in Shanghai

School-run factories appear at a special stage of development in our country and are facing transformation. The physical environment is an important dimension for evaluating the transformation of existing buildings. Taking the thermal environment as the starting point, field surveys were conducted on the regeneration space of the school-run factory. The indoor thermal environment in winter was objectively presented, and its influencing factors and mechanism were revealed preliminarily. The experimental results showed that:1) under non-extreme climatic conditions in winter, the indoor air temperature was 7.0-10.0℃, the relative humidity was 40.0%-60.0%, and there was no obvious heat stratification in indoor space, and feeling cold was mainly due to low air temperature; 2) the moderately renovated envelope structure met the needs of space use and distinctive features, but had a limited role in regulating the indoor thermal environment, and there was a 0.5-1.0 h lag time for outdoor temperature and humidity fluctuations; 3) the foyer space effectively buffered outdoor temperature and humidity fluctuations and reduced heat loss in winter. Evaluation of the school-run factory renovation from environmental results could provide new thinking dimensions for the renovation design of similar existing buildings.