Workshop 6 – Alteration and degradation of materials. The damage of soluble salts – Professor Manuel Rosa – Polytechnic Institute of Tomar, Portugal.

A critical analysis and evaluation of the restoration work completed at Notre-Dame Cathedral in Paris, France, following the devastating fire (2019), in accordance with international Charters and guidelines. - Professor Elenni Kanetaki - University of Western Attica - Greece.

Workshop 7 - Mural paintings, mortars and coating materials - Leonor Malaquias and professors Fernando Costa and Jorge Ribeiro - Polytechnic Institute of Tomar, Portugal.