Task
In a residential complex of 14 units in Bütgenbach, recurring damp appeared over two years in ground-floor apartments, visible as water marks on inner walls, mould formation in two units and a rising stream of complaints to the management. The owner cooperative engaged MSeXpert with clarifying the cause and describing the remediation scope.
Approach
Step one: document research, building files, as-built drawings, contracts with the executing contractor. Step two: on-site visit with systematic condition recording of all 14 units and the outdoor areas, photo documentation, moisture measurements. Step three: targeted structure openings at six locations around the plinth area, in cooperation with a structure-opening specialist. Step four: analysis, evaluation of execution against accepted rules of construction practice, drafting of the report.
Outcome
The 42-page report identified faulty external waterproofing as the main cause, specifically a missing seal joint and inadequate connection sealing around the basement window frames. The report described the remediation scope in detail (excavation, re-waterproofing, drying, interior remediation) and quantified expected costs. It served the owner cooperative as the basis for defect rectification claims against the executing contractor.