For the owners of multi-storey car parks and other major structures, this is a major dilemma, since it is assumed that both options will inevitably be costly, time-consuming and disruptive. The owners at Karihaugen BRL and Ellingsrud BRL recently faced this issue, but found a better than expected result.

On this site near Oslo, the five multi-storey car parks have been extensively used by residents for over 30 years. In addition to general disrepair, there was evidence of rebar corrosion within the floor slabs and rapid deterioration on the external facades.

Camur ZEBRA (CZ) katodisk beskyttelse av innstøpt armering ble utviklet av Protector på slutten av  nitti-tallet, og har siden da etablert seg som det ledende systemet for korrosjonsbekjempelse i Norge. CZ systemet har blitt brukt i flere land på flere titalls tusen kvadratmeter korroderende betong, spesielt P-hus.