Hoffmann, CarolineGeissler, Achim2017-09-132017-09-132017-09-121876-610210.1016/j.egypro.2017.07.301http://hdl.handle.net/11654/25446https://doi.org/10.26041/fhnw-1154This paper focuses on the topics U-values and indoor air temperatures of unheated basements with uninsulated cellar ceilings. Measurement values are compared with calculation procedures suggested by building regulations. Concerning the U-values it is shown that they are typically considered to be higher (i.e. worse) in uninsulated existing constructions than they effectively are. Measured temperatures in seven basements are higher (around 8 K) than a calculation according to regulations would yield. The paper derives suggestions for the adjustment of calculations focused on existing residential buildings.en-USU-valuebasement temperaturemeasurement690 - Hausbau, Bauhandwerk600 - Technik01A - Beitrag in wissenschaftlicher Zeitschrift32-37