## 3 Case Study: Campulung Town Hall Building
### Energy Analysis--A Pre-Intervention, Non-Invasive, Multicriterial Study
#### 3.3.2 Result from the In Situ Measurements of Temperature and Humidity  
To better understand the state of the building and its indoor conditions during winter/spring season, testing the relative humidity and the temperature fluctuation was a key part of the study. Following the energy audit, we were able, with the help of the Testo 174 equipment, to record and analyze the date recorded as follows: we placed the equipment, that had been set to record, in an office facing the south facade and in an office facing the north facade; this positioning of the sensors was also meant to be used for comparison as the solar gains can severely impact the indoor temperatures. As can be observed in Figure 6, the temperatures throughout March and April of this year, during both night and day, were different, with almost daily temperature drops. Romania is a country that experiences all 4 four seasons during a year; however, in the passing years, the lines between winter and summer have been blurred and the changes are visible as little to no snow falls during the winter season. The reason why we chose to monitor the building during the end of winter and the beginning of spring was to better understand the state of a building with such characteristics. * South Facade Office Measurements  
The Testo equipment we set in one of the main offices of the building facing the south facade was positioned strategically in order to monitor the relation between the building's pre-intervention relative humidity and the interior temperatures registered. Thus, as the above Table 4 showcases, as this is the facade that was the most solar, the temperatures remained generally constant, i.e., between 21.7 and 24.4 \({}^{\circ}\)C, while the humidity throughout the period of the office monitoring (14 March 2023-11 April 2023), as can be seen in Figure 7, fluctuated from 17.1 to 39.1%rH. This can decrease the quality of the interior climate and reduce the work efficiency of the staff that work in the building, as the building is an administrative one. Figure 6: Exterior temperatures between March and April 2023, the period when the in situ measurements took place. * North Facade Office Measurements  
The equipment that was set to measure the relative humidity and temperatures in the main office facing the north facade was able to showcase, just as in the case of the south facade, that the monitored temperature values were more constant (see Table 5) than the humidity levels; the latter were significantly more different, taking into consideration the climate conditions at that time in Campulung town, as there was more humidity in the exterior air. Moreover, the failure to address this issue, particularly in the context of Romania's seasonal climate variations, poses significant concerns. Summers in Romania are characterized by high temperatures, while the transitions between colder and warmer seasons are protracted. During these transitional periods, there is a continuous exchange of air \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Parameter 1** & **Min** & **Max** & **Mean Value** \\ \hline Humidity [\%rH] & 17.1 & 39.1 & 26.89 \\ Temperature [\({}^{\circ}\)C] & 21.7 & 24.4 & 23.308 \\ \hline \hline \end{tabular}  
* Parameters recorded between 14 March 2023 and11 April 2023, a transition period in between the cold season and a warmer one.  
\end{table} 
Table 4: Results regarding the degree of relative humidity and temperature. Figure 7: Results regarding the degree of relative humidity and temperature obtained from the equipment located in an office space facing the south facade of the building. between indoor and outdoor environments. This persistent state of flux can compromise the building's usability, rendering it an unsafe workspace for prolonged durations. Figure 8 highlights that, because of temperature changes, the interior temperatures fluctuate considerably in the period during which the equipment monitored the building.