Hudson Lambert, Managing Director at Safeguard Europe explains how the trades can leverage modern techniques for restoration projects
Across the UK, traditional buildings of historic interest are governed by strict restoration rules designed to preserve their character and integrity. However, maintaining historic landmarks isn’t easy. The challenge lies in balancing preservation with functionality and ensuring that the methods used for preservation align with historical aesthetics and also provide long-term protection against environmental and structural threats.
While traditional restoration techniques are often regarded as the first choice, they don’t always guarantee lasting resilience. Advances in modern restoration products and technology have introduced new solutions that address the limitations of traditional methods while respecting the historical significance of the structures.
Challenges in restoration
Restoring historical buildings involves various complexities that go beyond regular renovation. Firstly, matching modern materials with historic ones can be a time-consuming and delicate process and using incorrect materials can risk damaging the building’s structure over time. Not only this but choosing the wrong restoration approach can lead to unintended consequences, such as damp issues or compromised stability.
Environmental exposure also needs to be considered, with many historic buildings exposed to severe weather. This can include rain, damp and seawater which can damage structural integrity.
Beyond this, restorers need to adhere to the strict guidelines that govern listed buildings as they often require planning and approval for any intervention.
Given these challenges, restorers should consider turning to modern techniques and products that offer durability while maintaining the building’s historic structure, as is common in European countries.
Testing modern approaches
Modern solutions to protect historical buildings are becoming increasingly vital as the wet weather increases. There was a 10% increase in rainfall for 2014-2023 compared to 1961-1990. Traditional methods of waterproofing may impact the look of historical buildings, and period-accurate repairs need regular maintenance from specialists who may be in short supply.
Modern solutions such as silicone creams are designed to ensure long-lasting waterproofing protection. They also require less time to apply, potentially reducing overall project costs while maintaining high standards. However, before applying any restoration technique, the method must be tested thoroughly to ensure its suitability. For heritage sites, small-scale testing is an essential step that helps restorers avoid irreversible damage. It also allows for adjustments to ensure compatibility with the building’s characteristics.
Preserving a 1940s Pillbox
A compelling example of modern restoration techniques in action is the successful preservation of a World War II bunker in West Sussex. It is one of only two surviving pillboxes on the West Sussex Coast. Situated on the seafront, the pillbox was subjected to some of the harshest conditions, including constant exposure to wind-driven rain and saltwater spray.
Inside there was evidence of condensation on the ceiling. The internal timber steps were damp and rotten, so stopping future water ingress and preventing any further moisture-related damage to the exterior of the pillbox needed to be fixed. Because of this project’s historical importance, any waterproofing treatment would have to be completely invisible once cured.
However, this project presented a unique challenge: its concrete composition was unknown. To ensure the right waterproofing solution, laboratory tests were conducted on render samples. Stormdry Masonry Protection Cream emerged as the ideal choice due to its waterproofing performance and invisible finish.
Before application, the pillbox was thoroughly cleaned to remove years of grime and biological growth. Stormdry Cream was then applied to the south and west elevations, as well as the flat roof. To address larger cracks, a repair mortar was used, while Stormdry Cream effectively sealed smaller defects.
This project not only underscores the potential of modern techniques to protect heritage sites but also dispels the misconception that modern products are unsuitable for historic buildings.
Overcoming reluctance
Despite the proven benefits of modern techniques, the trade sector remains cautious about adopting them to protect old buildings. Often there is the belief that a heritage home needs period-accurate levels of repair to prevent accidental damp issues and other technical complications.
However, examples like the 1940s pillbox demonstrate that modern methods can effectively address the limitations of traditional techniques. Modern methods can protect historic buildings from damage without drawbacks, even in the most demanding conditions. As the bunker is on the seafront, it is regularly covered in wind-driven seawater, the worst conditions you could expose a building to.
Preserved for the future
While traditional methods will always have a place in the restoration of historic buildings, modern solutions are proving to be the way forward. Whether it’s safeguarding a seafront pillbox or restoring a listed home, the integration of modern techniques can address the limitations of traditional and historic methods and ensure that heritage sites are protected and maintained for the future.
Stormdry Masonry Protection Cream is a BBA-approved deeply penetrating water repellent cream for brick, stone, and concrete. Due to its cream-based formulation it is able to penetrate more deeply into masonry than standard liquid-applied brick sealer products.
For further information on StormDry Masonry Protection Cream from Safeguard Europe visit: Safeguard Europe | 1940s Concrete Pillbox, West Sussex — High-Performance Waterproofing with Stormdry Masonry Protection Cream
