New Build Basement Waterproofing in Wolverhampton
The latest update from site shows how the external Type A system has been installed complete with protection boards, land drain, backfill and geotextile membrane. The Type A (Barrier) protection itself is provided via the application of rubber waterproof liquid membrane with a double cuspated drainage layer on top.
The correct positioning of the external land drain is a vital, and often overlooked, aspect to ensuring the success of a Type A Waterproofing System, a land drain is designed to help reduce the amount of hydrostatic pressure that can come to bear.
The current phase of works involves the installation of a Type C (Drained) Protection Cavity Drain Membrane system internally within the structure.
Keep an eye out for the full case study in the coming months.