18/03/2019 Share this story Share on Facebook icon Share on Twitter icon Share on Pinterest icon Share on Google Plus icon Share on Linked In icon Share via Email icon

New infra-red imaging survey reveals 'additional areas of concern' at Charles Rennie Mackintosh's Hill House

9f76be09-2a1e-4db8-8ca5-e7f3f68a1256

State of the art survey techniques have revealed the severity of water damage to Charles Rennie Mackintosh’s iconic property, The Hill House at Helensburgh in greater detail than ever before.  

The surveys, carried out in partnership between the National Trust for Scotland – who own and care for the Helensburgh property – and Historic Environment Scotland, shows the extent of the damp and water damage to the building.  

Infra-red thermographic (IRT) imaging records differences of surface temperature, which gives an indication of where moisture from decades of almost constant wet weather is retained within the building fabric.

A previous IRT survey was carried out in 2003 at the site and these fresh images have been combined with new 3D digital survey and microwave moisture readings. These three surveys allow building conservators to pinpoint areas of damp, and further understand the declining condition of the property.

Weather damage

Since Hill House was completed in 1904, years of wind and rain have caused significant issues with water ingress. In efforts to protect Mackintosh’s domestic masterpiece, the conservation charity is in the process of surrounding the building with an innovative mesh structure to protect it from the weather.

Richard Williams, General Manager for Glasgow and West at the National Trust for Scotland said: “By combining the infra-red thermographic survey, the 3D scan and the microwave readings we have a very powerful tool to aid our technical understanding of the complex problems at The Hill House, and a robust baseline before we surround the building with its protective shield. 

“These surveys reinforce what we already knew about the house, which is that it is very damp and has considerable issues that need to be overcome. Due to the design of The Hill House, there are many ledges, wall heads and chimneys that have had a history of many attempts to remedy, yet this problem continues.

“We’re also now have additional areas of concern, such as large sections of harling that have become disengaged from the walls where damp is accumulating, and internal walls we hadn’t realised were so damp. 

“We have also been able to see the direction that the water is travelling in some of the rooms, in particular in the exhibition room, where there was already clear damage.

“The works to create the ‘box’ are now well underway and we are grateful to the many individuals who have generously donated to help us to tackle these problems. The intention is that the structure will provide a temporary respite for The Hill House pending a long-term solution to the water ingress being found, in conjunction with our Mackintosh partners.”

A Mackintosh masterpiece

Dr Ewan Hyslop, Head of Technical Research & Science at Historic Environment Scotland (HES), said: “We’re very pleased to offer our skills and expertise to support the National Trust for Scotland in this important project.

“Hill House is a Mackintosh masterpiece, and this project is a great example of how we can use innovative technology to better understand the risks to historic sites such as this, and inform work to conserve and protect them.”

The house and gardens are currently closed to the public but are expected to reopen in late spring this year, complete with raised walkways around the exterior of the house and over the roof.

Donations to the appeal to build the ‘box’ shield around the house, can be made online.

QUICK LINK: Pioneer Victorian glass photo slides rescued from skip

Report and images courtesy of National Trust for Scotland

News

18/03/2019 Share this story Share on Facebook icon Share on Twitter icon Share on Pinterest icon Share on Google Plus icon Share on Linked In icon Share via Email icon

Recent Updates

The face of an Iron Age druid revealed

A University of Dundee student has revealed the face of one of Scotland’s oldest druids, believed to have ...


Join History Scotland Insider for exclusive interviews, competitions, discounts and more...

History Scotland Insider is our brand new monthly newsletter, exclusively for History Scotland magazine ...


Dr Gordon Rintoul CBE to step down as director of National Museums Scotland

Dr Gordon Rintoul CBE, Director, National Museums Scotland, has announced that he will be stepping down in ...


Historic memorandum signed between University of Glasgow and University of the West Indies

A historic Memorandum of Understanding has been signed by senior representatives of The University of Glasgow ...


Other News

Historic alabaster monument at Scone Palace restored to its original splendour

Specialist work to restore an intricate alabaster monument in Scone Palace's gothic chapel has been ...


Prince on the run: new exhibition at Kildonan Museum

Members of the Future Curators Group at Kildonan Museum spoke to us about what they learnt whilst preparing ...


Prince on the Run: exhibition tells the story of Bonnie Prince Charlie's escape

A display featuring gifts exchanged between Bonnie Prince Charlie and Flora MacDonald are included as part of ...


Writer and broadcaster Jamie Crawford is announced as the 2019-20 Explore Your Archive ambassador

The Archives and Records Association (UK & Ireland) and its ARA Scotland regional group have announced that ...