Case Study
A “crowning” achievement – Structural water-proofing under pavement cellars
An overview of the project
Located on Scotland’s east coast, St Andrews exudes a timeless charm through its historic architecture and coastal location. Cobblestone streets wind past historic buildings, evoking a sense of heritage that envelops the town. Home to a renowned university, iconic golf courses, and stunning coastal vistas, St Andrews stands as a living testament to Scotland’s architectural and cultural legacy. Nestled under the streets remain cellars of all shapes and sizes, still used today for all types of storage needs both privately and commercially.
The Preservation Company was called to survey and waterproof these existing cellars to bring a new lease of life for storage. Initial assessments of the under-pavement cellars revealed unmistakable signs of water ingress, resulting in persistent dampness and structural degradation. The timber-safe lintels displayed telltale signs of softening, while the degraded door frames underscored the challenges posed by the elements.
This task not only aimed to mitigate the immediate threats posed by water damage but also to enhance the functionality and aesthetic appeal of the historic cellars. With the property being frequented by the cast and crew of the popular Netflix series, “The Crown,” the preservation of the cellars took on added importance, elevating their status as not just functional spaces but as part of a vibrant cultural landmark. This heightened profile has underscored the need for meticulous care and enhanced the visibility of our conservation efforts, contributing significantly to the local heritage.
Key Information
What is water ingress?
Water ingress is when water infiltrates or enters a structure where it is not intended. It commonly occurs as a result of various factors, including rainfall, flooding, leaks, condensation, or rising groundwater levels
How do we identify it?
Water ingress is detected through visual checks, moisture meters, thermal imaging, and tracer methods. Our professional team carry out a number of reviews to identify the source and its consequences.
How do we manage it?
Water ingress is managed through sealing, drainage systems, foundation repairs, and ventilation. Regular maintenance, landscaping, and professional guidance are crucial.
These old cellars provide much sought-after storage space but many have succumbed to the elements. For safe and continued use, structural waterproofing ensures they are given a new lease of life.
Gavin White – CSTDB CSSW – Director
The recommendations
Clean up and dry
Before any preservation work can begin, it’s crucial to thoroughly clean up and dry the affected areas. This initial step prevents further deterioration caused by moisture and prepares the structure for the next phase of waterproofing.
Waterproofing
We applied a tailored waterproof membrane system designed to offer long-lasting protection without compromising the architectural integrity of the cellars. This system provides a resilient barrier against moisture, which is crucial for preserving the cellars’ condition and usability,
Structural sealing
The final step in preserving the integrity of the space involves structural sealing, which includes the installation of new, water-resistant doors and the meticulous finishing of internal surfaces.
Our journey to success
Identifying the sources and causes
Our journey began with a detailed assessment of the cellars to identify the precise sources and causes of moisture intrusion. Through meticulous evaluation, we pinpointed critical areas where water was entering. Understanding these vulnerabilities was essential for developing an effective waterproofing strategy tailored to the unique architecture of St Andrews.
Repairing damage and laying the foundations
Once the problem areas were identified, our team set to work repairing the damaged structures and preparing the foundations for waterproofing. This involved reinforcing weakened structural elements and smoothing surfaces to ensure the new waterproofing materials would adhere correctly. By restoring the cellars to a robust state, we laid a solid foundation for the subsequent waterproofing and sealing phases.
Waterproofing and reinforcing seals
The final steps in our journey involved applying a high-quality waterproofing layer followed by reinforcing all seals. We utilised state-of-the-art waterproofing technologies tailored specifically for the unique conditions of the historic cellars in St Andrews. Each seam, joint, and entry point was meticulously sealed to ensure a completely watertight environment. This comprehensive approach not only prevents future water ingress but also strengthens the overall structural integrity, guaranteeing longevity and continued functionality.
The three key takeaways
1. Early diagnosis
Identifying signs of dampness early is crucial. Promptly consulting a professional to survey your property can save considerable time and money, while also preventing the spread of fungal growth, which can be detrimental to health.
2. Professional treatment
Seeking professional treatment ensures effective results. DIY damp proofing efforts can inadvertently increase problems by facilitating water movement between structural elements and personal belongings, exacerbating the issue.
3. Prevention strategy
Implementing a robust prevention strategy is essential after initial treatment. Regular maintenance checks, the use of quality waterproofing materials, and timely interventions can prevent recurrence, safeguarding the property’s structural integrity.