Damp problems are not uncommon in period properties, with homeowners and landlords being challenged by issues such as water ingress, rising damp, condensation and rot. Challenges such as these can lead to structural damage and health concerns, which is why finding the right damp proofing solution is so important. This is the story of how those solutions have evolved over the years.
The dawn of the damp proof course
In around 1875 damp proof courses became a compulsory element for planning regulations in London and other big cities, as part of the larger movement to improve public health and living conditions. The earliest courses were slate layers, laid at the same recommended height as we use today.
Thankfully, advancements in damp proofing technologies have revolutionised how we protect buildings from damp with organisations like the Property Care Association (PCA) and companies such as Delta Membranes at the forefront of innovations.
The introduction of damp proofing membranes
It wasn’t until around 1960 that damp proof membranes were introduced as a material for protecting mainly floors. Since then as we can attest, the evolution of damp proofing materials and uses has been rapid and is considered vital for the conservation of period properties and listed buildings.
These days we have a vast array of products to choose from, to suit any type of damp problem, including chemical damp proof courses, floor and wall membranes, pump and alarm systems and thermal lining systems like Iso-Therm.
The early 2000’s saw the publication of BS 8102:2022
The updated British Standard 8102:2022 came into effect in March 2022, and forms the code of practice for the protection of below-ground structures against water ingress. The original code was published in May 2009, but soon withdrawn and replaced in November of the same year to include new waterproofing materials.
The current revision is considered to be one of the most important documents for the design and installation of waterproofing systems in the UK – it is considered the oracle at PCS!
Modern damp proofing systems
Modern systems have made a significant contribution to the protection and conservation of period and listed buildings. In particular, Type B and Type C systems:
Type A waterproofing systems
Type A systems is commonly called a ‘barrier’ system, such as is used in basement tanking. It requires the use of membranes or waterproof cement to be applied to the interior walls and/or floors in a sub-ground structure to create a physical barrier against water ingress.
Type B waterproofing systems
These systems integrate waterproofing directly into the building’s structure, eliminating the need for additional components like kickers. This approach simplifies construction and enhances the building’s resistance to water ingress. Techniques include joint sealing and the use of watertight concrete.
Type C cavity drainage systems
Delta Membranes specialises in Type C cavity drainage systems, which manage water ingress by directing it to drainage points, preventing moisture buildup within structures. These systems are particularly effective in basements and below-ground structures, offering a reliable solution for moisture management, and are often used in conjunction with Type A systems.
Take action to protect your property
Addressing damp issues promptly is crucial for maintaining the structural integrity and health of your home. For residents in Oxfordshire and the surrounding counties, Property Conservation Services offers over 45 years of expertise in damp proofing and property preservation. Our services include basement waterproofing, timber treatments, and condensation control, ensuring your property and investment remains safe and enjoyable for years to come.
Don’t wait for damp problems to escalate. Contact us today to schedule a free damp survey and take the first step toward a healthier home.