As part of the general restoration of the building, the marble cladding on the facades was restored, cleaned, and waterproofed for a total surface of more than 3,000m2.
The “Pentelic-Dionysos” marble cladding on the facades suffered from water ingress through the joints. Moreover, due to long-term expose to exhaust fumes, CO2 and acid urban rain environment, a general cleaning of the entire surface and of heavy stains was required.
The cleaning was conducted with angle grinders by using successively finer grits of sandpaper until the surface was clean and smooth per the specs.
For the long-lasting protection and waterproofing of the marbles, Sikagard®-790 All-in-One Protect system was applied, which does not alter the texture and color of the stone cladding throughout time.
ENKA executed the project successfully and on schedule, in perfect collaboration with the engineers and managers of AKTOR (contractor) and DIARCHON (construction supervision).