The research of methodologies and tools to improve the durability of 7 building components has the aim to find out the strategies to increase the service 8 life, minimizing the environmental impacts. The paper refers on clinker facades, 9 especially after the repairs of mortars due to severe damages. The authors achieved 10 on-site investigations on a prominent study case in Leonardo Campus, at
11Politecnico di Milano, and laboratory tests to study the interaction between mois-12 ture and cement mortars, the decay effects, and the protective treatments to improve