Introduction
Basements are making a comeback: as building plots are getting smaller and more expensive, builders and homeowners are seeing the sense of creating more space from the same footprint. The key to a successful outcome is basement waterproofing, which will protect against water entering the structure and allow you to create additional living space, leisure facilities or car parking. Without waterproofing your basement, you risk water getting in and causing damp-related and structural issues.
The British Standard BS 8102:2022 is the code of practice for protecting structures below ground level from water ingress. It gives recommendations and guidance on three different methods of waterproofing:
- Type A: Also known as tanking, where a barrier system is applied internally or externally to the walls and floor of a structure;
- Type B: An inbuilt characteristic of the structure by adding waterproofing additives to the concrete used to form the walls and floor;
- Type C: The use of cavity drain membranes, where the aim is not to prevent water entering the structure but to manage it and divert it to a pumping chamber or external land drain.
What’s the difference between basement tanking and waterproofing?
Basement waterproofing covers all methods of waterproofing (BS 8102:2022 Types A, B and C), whereas basement tanking refers only to the application of a membrane or coating to act as a barrier.
Tanking a basement is what BS 8102:2022 refers to as Type A waterproofing. Here, a membrane or coating is externally or internally applied to walls and floors to create a protective barrier and prevent ground water from entering the building.
How can Heidelberg Materials help?
Heidelberg Materials Ready-mix Concrete is the UK’s largest supplier of ready-mixed concrete and has a national network of over 180 static and mobile production plants. We design and produce quality-assured ready-mixed concrete to suit any application, including solutions for basement waterproofing. All of our waterproofing systems meet the British Standard BS 8102:2022.
Heidelberg Materials waterproof concrete
Heidelberg Materials range of waterproof concrete has been developed using the latest admixture technology from our partner Sika® and provides a quality-assured solution that meets all requirements of BS 8102:2022. View more information on our waterpoof concrete systems .
We offer two basement waterproofing systems: Heidelberg Materials Gold waterproofing system and Heidelberg Materials Silver waterproofing system.
