What is a Cavity Membrane system?

Cavity Membrane waterproofing systems are generally known as a  Type C system under the British Standard BS 8102 : 2009.

These systems are more of a water management system, they don’t actually stop ground water ingressing into a property, what they do (and extremely well) is stop water and water vapour entering the living space of a below ground structure.

The systems generally incorporate a sump & pump system so basically when ground water enters a building, the membrane and channels move the water into the sump, where it is then pumped out of the property.

Cavity Membrane Tanking systems 9th January 2019