BS 8102 Waterproofing Standards Explained | Basement Waterproofing Systems UK
What is BS 8102?
BS 8102:2022 is the UK standard for protecting below-ground structures against water ingress. It ensures basements and underground spaces remain dry and usable.
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How BS 8102 Waterproofing Systems Are Designed
BS 8102 does not focus on individual products, but on the design of complete waterproofing systems. The standard recommends that waterproofing is considered at the earliest design stage, taking into account ground conditions, water table levels, and the intended use of the structure.
In many cases, combined protection is recommended — for example using both Type A (barrier protection) and Type C (drained protection) systems together to reduce risk and improve long-term performance.
Proper design should be carried out by a qualified waterproofing specialist, ensuring that all components work together to achieve the required level of protection under BS 8102:2022.
The 3 Types of Waterproofing Systems
Type A – Barrier Protection
Liquid coatings and tanking systems that block water entry.
View SystemsWaterproofing Grades
- Grade 1: Utility use
- Grade 2: Dry storage
- Grade 3: Habitable space
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Tested & Certified Waterproofing Systems
We supply waterproofing systems that include independently tested and certified solutions, including products with BBA approval.
These certifications demonstrate performance and suitability for use within BS 8102-compliant designs.
Used by contractors, surveyors and waterproofing specialists across the UK.
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Get Expert AdviceFAQ
What is BS 8102?
The UK waterproofing standard.
Do I need multiple systems?
Often yes.
Do products guarantee compliance?
No.