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Designing Basement Waterproofing Systems

The key design considerations must be kept in mind while designing a basement waterproofing system


Basements are susceptible to the ingress of moisture and contaminants from the ground. For this reason, a waterproofing system will usually be required. Guidance on the requirements for basement waterproofing systems is given in BS 8102:2009 “Code of practice for protection of below ground structures against water from the ground”.

The choice of waterproofing system will depend on a number of factors such as the method & type of basement construction, the depth below ground, and the proposed end use. The example designs on this website are intended to demonstrate how BS 8102-compliant solutions can be achieved for some of the most common basement waterproofing scenarios.


In addition to dampness from the ground, basements are also commonly affected by condensation issues due to moisture-laden air within the basement structure. For this reason, the waterproofing systems described in this guide will usually need to be supplemented by mechanical ventilation. A waterproofing design specialist (see below) will be able to advise on suitable ventilation options depending on the proposed end use (e.g. car parking, document storage etc…)

Design Specialist

A waterproofing design specialist with a CSSW qualification should be consulted at the design stage. Please contact our technical department on 01274 604647 or email: for details of suitable basement design specialists in your area.


We have a fast emergency response unit that exit water from the building @ short notice. we also realise their is no time scale when such Hazards happen, so we work on a 24/7 bases. Insuring your not alone in times when you need us the most. If its a Water pipe leak our staff are qualified plumbers, that at all times carry the relevant equipment to fix it fast 

Phil Hayward Tanking UKemail: : 0800 0699925