In the last few years a bigger consciousness for the preservation of the cultural heritage has been developed. However, if problems associated with corrosion are not considered, during the necessary interventions on related works, by avoiding the use of materials and resources that make this phenomenon possible, problems associated with the durability of those materials, structure and safety for the citizens will appear.
The aim of the present work is to identify, through various examples detected in several historical structures, certain corrosion problems that some of its components present, to establish the origin of the damages and to suggest guidelines for their refurbishment. The last point is the most important one, in order that the specialists in restoration leave rigid and unfounded intervention patterns that cause, in most of the cases, serious damages and put the own restoration in danger, as a consequence of a lack of knowledge about the mechanisms that proceed and which will act in a future if qualified personal on both basic and applied principles of corrosion not be requested.
Keywords: Heritage, monuments, restoration, corrosion, carbonation.