Waterproofing systems aim at controlling ground, rain or surface water ingress, and the passage of humidity in vapour form. These usually come as membranes that act as a barrier between water and the building structure. Waterproofing systems are invariably used for any project where there is a need to contain or protect against water ingress or dampness, such as: water tanks, swimming pools, cellars, terraces and flat roofs. Typical application thickness: 1-4mm.