When constructing a new basement, it is often normal practice to install the waterproofing on the "positive side" i.e. on the exterior wall of the basement.

Traditionally bituminous protection sheets or liquid asphalt products have been used for the waterproofing of new-build basements in this way. However, problems with adhesion, jointing, and temperatures tolerance are often experienced with these types of product. For this reason, studded cavity drainage membranes are increasingly becoming the products of choice for the waterproofing of basements during the construction process, providing a watertight yet flexible barrier between the ground and the external wall.



External drained waterproofing for new build basements.

Structures that are earth retaining can be damaged by moisture penetration from the outside or by water under hydrostatic pressure.

Our membranes are available as geocomposites to deal with such problems. They act as a waterproof drainage layer, and quickly remove the water to suitable drainage around the structure.

They prevent the build-up of hydrostatic pressure on the structure and filter the water via an integral polypropylene filter layer.

This reduces the fine ground particles from blocking the drainage facility and avoids de-stabilizing the soil.