energy measurements

Old buildings represent, in many countries, a great part of the existing building stock. In France this amounts to more than 30%. It is important that they are retrofitted to improve energy performance. To compare reliable retrofitting measures, it is crucial to know their thermal and energy behaviour, their typological characteristics, the building techniques used and their heating and ventilation systems. This paper presents the results of long-term field measurements in a historical dwelling built in 1906 in Paris.