Cementitious Multi-Coat Render ( tanking )
 
This traditional method of basement waterproofing using multiple coats of render with a waterproofing agent in a dense sand/cement mix applied to walls and floor.

Thorough preparation is critical, as the wall has to be bush hammered to remove any loose material  and special provision has to be made for fixing points to avoid puncturing the waterproof membrane. A choice of finish is available.

This technique is also commonly known as "tanking"

Cavity Drainage Membrane

An alternative to the cementitious render for basement waterproofing is the installation of an high density polyethylene extruded membrane fixed mechanically to the walls, ceilings and floors but with an air gap for the movement of water vapour. Preparation is minimal, making installation quick and cost-effective with minimum disruption.

The internal finish can be either dry lining onto battens or plastering direct on the membrane. Fixing points can be accommodated without difficulty.

Perimeter drainage channels any free water to a sump and pump system.

Ask for a Basement Waterproofing survey

Free leaflet on basement waterproofing