Waterproofing Membranes

Preservation Supplies high quality Cavity Drainage membranes provide an air gap between the membrane and the wall, which allows any free water to run behind it. The membrane is mechanically fixed to the original sound wall surfaces then overlaid with treated battens or other framing systems, on to which plasterboard can be fixed.

In some circumstances the battens can be omitted and plasterboard and membrane fixed using special plastic plugs, alternatively a wet plaster could be applied.