Cleaning of plastered surfaces (approx. 4,500 m 2 ), Travertine surfaces (approx. 1,600 m 2 ) Window frames made of travertine panels (395 pieces) and cornices made of travertine (approx. 370 m) using the micro-dry blasting method. Cleaning the plastered areas of the extension with hot water and then treating the areas with a glaze (approx. 400 m 2 ). Repair or replacement of damaged areas (plaster and natural stone) in materials adapted to the existing situation. Renewal of the plaster on a complete facade side as a multi-layer scratch plaster (approx. 700 m 2 ). Cleaning and repair of 2 stair structures (concrete and natural stone) including renewal of the metal railings. Reconditioning of metal window grilles.

Cleaning of plastered surfaces (approx. 4,500 m 2 ), Travertine surfaces (approx. 1,600 m 2 ) Window frames made of travertine panels (395 pieces) and cornices made of travertine (approx. 370 m) using the micro-dry blasting method. Cleaning the plastered areas of the extension with hot water and then treating the areas with a glaze (approx. 400 m 2 ). Repair or replacement of damaged areas (plaster and natural stone) in materials adapted to the existing situation. Renewal of the plaster on a complete facade side as a multi-layer scratch plaster (approx. 700 m 2 ). Cleaning and repair of 2 stair structures (concrete and natural stone) including renewal of the metal railings. Reconditioning of metal window grilles.