Case 3

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Maintenance and Diagnostics

Regular cleaning and painting work preferably every 5 years. If cracks appear, it should be patch up immediately to prevent the migration of moisture.

Diagnostics of Defect (see also NDT)

Moisture Meter
Paint Detector
An Introduction to Pinholes and Holidays – Porosity Detection – Courtesy of Elcometer

Elcometer
PosiTest AT- A – Automatic Adhesion Tester – Courtesy of DeFelsko