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


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


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

University of Glasgow unveils gigantic map for world's biggest historical table top war game

The organisers of the biggest ever historical table top war game have unveiled the gigantic map being used to ...

New research on a Darien hero, Margaret Tudor and Michael Davitt's Highland tour in July/August History Scotland

Take a look at the centuries of history covered in the latest issue of History Scotland with our editor's ...

Aberdeen's UNESCO-recognised burgh records now freely available to a global audience

Aberdeen's earliest burgh records will now be opened to the world after researchers painstakingly transcribed ...

Lewis chessman to be offered at auction for the first time in history

A Lewis chessman bought in Edinburgh for £5 in the 1960s could fetch up to £1M when it comes to auction at ...

Other News

Covers to come off historic Abbey Strand buildings at Palace of Holyroodhouse in Edinburgh

The newly restored exterior of the Abbey Strand buildings in the Canongate at the end of the Royal Mile in ...

Game of Thrones history takeover!

Doune Castle in Stirlingshire is one of four UK locations chosen to be temporarily renamed to mark the final ...

Discover the secrets of Edinburgh Castle - video preview

An exclusive History Scotland video from 'Castle Hunter' David Weinczok uncovers the secrets of Edinburgh ...

Seignelay Colbert of Castlehill - plans announced for conference in 2020

The life of Inverness-born Seignelay Colbert of Castlehill will be explored in a conference to be held in ...