The Lab of Materials for Cultural Heritage and Modern Building (MaCHMoB) of the School of Architectural Engineering, Technical University of Crete with Scientific Responsible the Associate Professor Noni Maravelaki and main Researcher Dr Chrysi Kapridaki, along with the Betong Consult AS, NanoPhos SA, the Laboratory Materials and Methods for Cultural Heritage of the Politecnico di Milano and the Surfa Products Scandinavia AS, will, during 2015 and 2016, jointly carry out the project: “The Oslo Opera House – Condition analysis and proposal for protection and maintenance of exterior marble”, in Oslo, Norway. The Oslo Opera House is a listed building. The project is being done in close cooperation with the Norwegian Directorate for Cultural Heritage (Statsbygg) regarding the approximately 23 000 m² Carrara Marble that decorates the external facades and roof of the Opera. In this project, Prof. N. Kallithrakas Kontos, the MSc candidates Sofia Tzanaki and Kali Kapetanaki and the student Antonis Theologitis also collaborate.