## 2 Materials and Methods
### Thermal Simulation  
To effectively forecast the performance of various ventilation strategies within the building, the LIDER-CALENER Unified Tool (HULC) was employed. This software serves as the official instrument for certifying energy efficiency in buildings across Spain [39]. Its application is well documented in contemporary research [40,41]. The calculation methodology employed by HULC has undergone rigorous validation by Bestest [42], ensuring its accuracy and dependability. This simulation tool offers two primary types of analyses. The first is called \"controlled temperature behavior\" and focuses on maintaining precise temperature settings within the spaces, mimicking the operation of a building with a controlled climate, whereas the second one is a \"free oscillation\" mode that allows for natural temperature fluctuations within a predetermined range, reflecting the reality of a building without air conditioning. This second type of simulation is particularly relevant in this case as the dwelling lacks air conditioning, allowing for a more realistic representation of its thermal performance. In this analysis, the second simulation type is selected to reflect the natural temperature fluctuations experienced in the absence of mechanical cooling systems. The boundary conditions of the simulation require to be customized to reflect the unique operational characteristics of the building, enhancing the accuracy of the predictions. To tailor the simulation effectively, input from the building's \begin{table}
\begin{tabular}{c c c c c c c c} \hline  & \multicolumn{2}{c}{**Average**} & \multicolumn{2}{c}{**Max.**} & \multicolumn{2}{c}{**Min.**} \\ \hline \multicolumn{2}{c}{**Wind Speed**} & **Onsite** & **Rural** & **Onsite** & **Rural** & **Onsite** & **Rural** \\ \hline
07-ago & Daytime & 2.83 & 1.80 & 5.76 & 2.78 & 0.00 & 0.50 \\  & Night time & 2.38 & 0.71 & 3.65 & 1.21 & 0.00 & 0.19 \\ \hline
08-ago & Daytime & 3.18 & 0.85 & 6.70 & 1.49 & 0.99 & 0.28 \\  & Night time & 3.34 & 1.11 & 6.74 & 2.08 & 0.75 & 0.03 \\ \hline
09-ago & Daytime & 2.27 & 0.82 & 4.07 & 1.64 & 0.00 & 0.08 \\  & Night time & 2.81 & 0.63 & 4.02 & 2.99 & 0.00 & 0.00 \\ \hline
10-ago & Daytime & 2.57 & 1.01 & 4.23 & 2.30 & 0.34 & 0.16 \\  & Night time & 1.88 & 0.23 & 4.16 & 0.60 & 0.36 & 0.01 \\ \hline
11-ago & Daytime & 2.18 & 1.02 & 5.25 & 2.73 & 0.00 & 0.44 \\  & Night time & 1.73 & 0.60 & 4.71 & 2.25 & 0.00 & 0.09 \\ \hline
12-ago & Daytime & 2.71 & 1.41 & 4.84 & 3.19 & 0.62 & 0.33 \\  & Night time & 2.66 & 0.49 & 5.05 & 1.64 & 0.00 & 0.08 \\ \hline
13-ago & Daytime & 3.11 & 2.33 & 5.42 & 3.74 & 1.22 & 0.38 \\  & Night time & 2.84 & 0.54 & 5.19 & 1.90 & 0.93 & 0.20 \\ \hline
14-ago & Daytime & 2.84 & 1.43 & 4.74 & 2.65 & 0.53 & 0.19 \\  & Night time & 3.29 & 0.55 & 8.66 & 2.36 & 1.14 & 0.05 \\ \hline
15-ago & Daytime & 2.79 & 1.44 & 8.41 & 2.63 & 0.79 & 0.33 \\  & Night time & 2.73 & 0.38 & 4.61 & 0.82 & 1.28 & 0.03 \\ \hline \end{tabular}
\end{table} 
Table 2: Wind speed data collected from the station in the dwelling. occupants is essential. This includes detailed information regarding how different spaces are utilized, which directly influences the ventilation dynamics. Furthermore, the presence and arrangement of furniture within each room are critical factors, as they contribute to the thermal inertia of the space by increasing its mass, thereby affecting heat retention and dissipation. On the other hand, the climate data used in general simulations are derived from a comprehensive database of standardized climate files, which are integral for energy simulations and building certifications in Spain. However, the flexibility of HULC allows for the incorporation of any relevant climate data, enabling a more precise analysis tailored to specific conditions. In this study, the energy simulation leverages actual climate data sourced from the local weather station, providing a realistic basis for the analysis. The model established in HULC serves as a reference point to evaluate the effects of integrating passive cooling technologies [43].