Energieffektivisering av ett kulturhistoriskt värdefullt timmerhus från slutet av 1600-talet

Sammanfattning: In order to achieve national energy policy goals, it is necessary to improve the energy efficiency in buildings. However, this can sometimes be in conflict with the objective of preserving cultural heritage. This study seeks to evaluate possible energy efficiency measures for a timber house constructed during the 1670s in Sala, Sweden. Additionally, the study aims to assess the effectiveness of the guidelines established in the European standard EN 16883:2017, to offer informed recommendations to the property manager for increased energy efficiency initiatives within the building stock. The study is based on the methodology outlined in the guidelines, which present an appropriate framework for improving the energy performance of historical buildings. In a systematic manner, the study evaluates the most suitable energy efficiency measures based on various factors, such as energy use, conservation requirements, indoor climate, economy and usability. The findings indicate that the majority of measures can be implemented without compromising the cultural values of the building. Furthermore, the study suggests three sets of measures that prioritize energy efficiency from an energy-technical perspective, a cultural-historical perspective and a hybrid approach. The study highlights the combined package of measures, which provides an expected energy saving of 117 kWh/m²year compared to the current state, corresponding to a 65 percent reduction in the building's energy consumption. It also highlights the potential for incorporating European guidelines to facilitate a strategic approach towards investigating energy efficiency measures in historical buildings.