4.2.9. Diversity

Some interviewees mentioned that historical buildings are too diversified for adaptation solutions to be generalised and that adaptation has to be considered on a case-by-case basis. The question remains as to whether it is possible to generalize adaptation options to decrease the energy consumption of historical buildings or if each individual cultural heritage asset is too specific. More research is needed on specific classifications, or typologies, of heritage buildings to understand which possible adaptation solution can be proposed by comparing adaptation measures used in similar situations.

### *4.3. Best Practice Examples*

The last part of the investigation focused on the identification of best-practice examples in mitigating climate change, as expressed by the interviewees. Examples of best practices include refurbishment measures to increase the energy e fficiency of historical buildings in relation to upgrading the insulation, ventilation, lighting and heating, as well as the monitoring of climatic conditions (Table 4). The majority of these measures are consistent with the solutions proposed in the literature and raised in Section 2 of this paper.
