Water seepage from an upper-floor bathroom sunken slab was severely damaging the downstairs ceiling and bedroom adjacent walls in a premium Kukatpally apartment tower. The homeowner wanted a 100% leak-free repair without breaking costly designer Italian marble tiles.
Sunken slab leakage in high-rise apartments is Hyderabad's most frequent residential waterproofing emergency. Traditional repair methods mandate breaking all tiles, sanitary fixtures, and screeds—costing tens of thousands and weeks of displacement.
Utilizing high-pressure mechanical packers drilled precisely into mortar joints, we injected water-reactive polyurethane foam directly into the sunken void beneath the tiles. Upon contacting residual water, the chemical expands 20 times into a closed-cell flexible rubber seal, permanently blocking water paths.
Ceiling dampness on the floor below dried completely within 48 hours. Thermal imaging confirmed 0% moisture retention, saving the resident 75% compared to tile re-tiling costs.
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