What are the current challenges?
A combination of age, (Blenheim Palace is over 300 years old), climate change and penetration from rainfall have led to the declining state of the roof, attic timbers and ceilings below.
The area of the roof in question - almost an acre in size - is only served by four downpipes; excess rains mean leaks are commonplace.
The Great Hall ceiling painting by Sir James Thornhill, describes the 1st Duke of Marlborough kneeling to Britannia, proffering a plan of his victory at Blenheim. This painting, already suffering from hairline cracks over much of the surface from structural movement, now has substantial rainwater damage and mould growth.
In the Saloon, roof leaks, smoke damage and dirt have also caused significant damage to the painting of the Battle of Blenheim by Louis Laguerre, where Peace is depicted physically restraining the Duke.