Foundation tanking and basement waterproofing protect the building from soil moisture and water as an integrated “box” concept. XPS, drainage and protective membranes complement each other.
Continuity on the tanking face is resolved separately at movement joints and at the wall–slab junction. Drainage board selection follows soil class and hydrostatic pressure.
Intended use (parking, storage, living space) changes humidity targets; whether an extra vapour barrier or insulation is needed is clarified accordingly.
Post-application water retention tests or controlled inspection steps are documented to be shared with the contractor and design team.
Highlights for tanking & basement
- Load distribution with XPS and drainage boards
- Protective geotextile and filter compatibility
- Continuity at the wall–foundation junction
