Diocletian’s palace gets laser facelift

Conservators in Croatia have completed a ten-year project to remove more than 1,700 years of grime from the courtyard of the palace of the Roman Emperor Diocletian (AD244-311), in the coastal city of Split. Lasers were used as the primary method to clean the peristyle of the fourth-century imperial residence—an innovative technique that is normally reserved for cleaning individual sculptures or details of larger architectural elements, as opposed to whole structures. According to the architect Goran Niksic, who works for the city, this is the first time lasers have been used on this scale in Croatia to clean stone.

Emperor Diocletian’s palace in Split, Croatia underwent treatment by laser
during the ten-year project [Credit:Art Newspaper]

The peristyle was covered not only in soot, but also in cement dust from a nearby plant that was active in the late 19th and the first half of the 20th centuries. In some parts, the build-up of grime was up to a centimetre thick. 

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