The late 19th century carvings of Roman Emperors and Governors of Roman Britain on the terrace overlooking the Great Bath are particularly susceptible to the effect of acid rain and are protected with a wash of a sacrificial shelter coat every few years.
Exhibits within the temple precincts are susceptible to warm air which had the effect of drawing corrosive salts out of the Roman stonework.
To help reduce this, a new ventilation system was installed in 2006.

In 2009 a grant of £90,000 was made to Bath and North East Somerset Council to contribute towards the cost of re-developing displays and improving access to the Roman Baths, by the Department for Culture, Media and Sport/Wolfson Fund, which was established to promote improvements in Museums and Galleries in England.
 Subsequent grants have funded further work on the exhibition design and layout by London-based specialist firm, Event Communications.
The late 19th century carvings of Roman Emperors and Governors of Roman Britain on the terrace overlooking the Great Bath are particularly susceptible to the effect of acid rain and are protected with a wash of a sacrificial shelter coat every few years. Exhibits within the temple precincts are susceptible to warm air which had the effect of drawing corrosive salts out of the Roman stonework. To help reduce this, a new ventilation system was installed in 2006.
In 2009 a grant of £90,000 was made to Bath and North East Somerset Council to contribute towards the cost of re-developing displays and improving access to the Roman Baths, by the Department for Culture, Media and Sport/Wolfson Fund, which was established to promote improvements in Museums and Galleries in England.  Subsequent grants have funded further work on the exhibition design and layout by London-based specialist firm, Event Communications.
Roman Baths (Bath)