“…Lastly, the energy saving potential of a set of passive retrofit measures is assessed, as well as its effect on the artefacts' conservation metrics in historic buildings. In colder climates it is usual that the indoor climate of historic buildings that house artefacts is heated to ensure the thermal comfort of visitors [56][57][58][59]. However, due to the fact that the minimum temperature limit varies considerably from case-to case the authors chose a minimum temperature of 13 ºC for the methodologies that do not preconize temperature limits to guarantee that there is no embrittlement of the artefacts [60].…”