Water intrusion in buildings often signals deeper problems beneath the surface. At a hospital located in Kuala Lumpur, staffs observed water droplets dripping from the soffit at Level 7, raising concerns about deterioration in the roof slab. With no waterproofing layer previously installed, the hospital wanted assurance of the slab’s condition before proceeding with protective works.

We were engaged to conduct a void detection survey using Xradar™ enhanced concrete scanning technology. The objective was to detect hidden subsurface anomalies that could indicate voiding or deterioration beneath the slab-on-grade for a total of 420m².

Our survey mapped the slab across several key areas, revealing both possible and suspected voids within not more than 1 hour. The majority of these were concentrated along the right side of the building, where voiding extended across 0.5–2.5m radii.

The assessment provided the hospital with a clearer picture of the slab’s condition, ensuring that suspected voiding areas will be addressed before installing the waterproofing system. By detecting issues early, the client was able to plan remedial action with confidence, reducing future risks of structural damage and operational disruption.