DAMP – UNDERPAVEMENT & BASEMENT WATERPROOFING (TANKING)

Over recent years there has been an ever increasing demand for more useable space within buildings of all kinds of usage. Often the costs of extending your home or office are prohibitive, time consuming and undoubtedly at some point will require planning permission. As a result there is now a widespread demand for the conversion of old damp basement areas into dry usable rooms. The most critical issue in the conversion of a damp basement area is the requirement of an effective, efficient and long lasting waterproofing system. With an increase in regional flooding and the presence of rising ground water it is inevitable that more and more basements have been subjected to seepage and in the worst case, flooding.

The Solution

Building Maintenance Control offers a full feasibility, design and installation service for domestic and commercial clients. We install bespoke waterproofing solutions, provide specialist advice and offer systems that suit the client’s desired use for the basement area. We can turn your cold, damp basement into the extra living or storage space that you crave.

Building Maintenance Control’s surveyors will recommend one of two systems –

Cementitious Multi-Coat Render (Tanking):

This is a 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 MEMBRANES (NEWTON 500 OR SIMILAR)

An alternative to the cementitious render for basement waterproofing is the installation of a 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.