Olympic Surveyors, as Chartered Building Engineers and Certified Structural Waterproofing Surveyors (CSSW), also specialise in the waterproofing of new structures. Our team is experienced in designing and implementing integrated waterproofing systems to ensure your new basement or underground structure is fully protected from water ingress.
The BS8102: 2022 Code of Practice for ‘Protection of Below Ground Structures against Water Ingress’ clearly states that a waterproofing specialist should be part of the design team to create an integrated solution.
This specialist must be:
1. Qualified and experienced, commensurate with the project size and complexity.
2. Able to devise solutions that accommodate project constraints and construction methods.
3. Capable of providing detailed guidance on design, installation, and future maintenance.
Waterproofing design should be incorporated before the technical design stage at the latest, ensuring that the waterproofing solution is part of the overall project planning. We work closely with the design team to address any issues and develop a cohesive waterproofing strategy.
There are two primary ways water can penetrate a structure below ground level:
Capillary Suction: Water moves through the capillaries in the ground and structure, causing surface dampness but not flooding.
Hydrostatic Pressure: When the ground is saturated, water is forced into the building, causing potential flooding due to pressure behind the water.
For horizontal surfaces such as podium decks or buried roofs, waterproofing requires a robust design, proper drainage, and installation of suitable membranes. These structures need to be designed with adequate falls (at least 1:80) and proper drainage systems to prevent standing water and hydrostatic pressure.
In the image shown, we used a Koster Deuxan 2C liquid-applied waterproofing membrane combined with a Delta Geo-drain Quattro membrane for a new build project, ensuring full compliance with BS8102: 2022.
Full compliance with BS8102: 2022
Experienced waterproofing specialists as part of your design team
Tailored solutions for new structures, including podium decks and buried roofs
High-quality, flexible waterproofing systems to prevent water ingress
Have any questions or would like to discuss your project further? Get in touch with us to schedule an inspection or consultation
Specialist Surveyors with expertise in cavity wall assessments.
Multi-award-winning PCA members , regulated by RICS.
State-of-the-art diagnostic tools ensuring accurate results.
Tailored remedial solutions for long-term property protection.
If you suspect wall tie failure or structural movement, contact Olympic Construction Ltd for a professional wall tie inspection.Early detection and expert remediation ensure the stability and longevity of your
