The Problem
A Richmond mall had persistent wet carpet near the food court. Two restoration companies had dried the area twice; the leak kept returning.
Detection Method
Combined GPR and thermal imaging. GPR mapped the in-slab plumbing; thermal identified a hot water leak from a corroded copper line in the slab.
Results
300mm x 300mm patch. Corroded fitting replaced. Corridor dry for 18+ months. Mall now schedules annual slab scans.