Abandoned industrial areas are becoming more and more frequent in Europe. Due to new technologies and to less workers needed in industries, plants are closing or relocating leaving abandoned places. With the problematic of lacking free lands and the need of new buildings for the still growing population, it is crucial to renovate those sites. Mainly because they are part of the heritage of the cities and are landmark buildings. But also, because the reuse of some elements of the buildings may reduce the costs. Renovation of buildings being a topic included in the European Green Deal, it is starting to become something more recurrent.