Problem
Water marks on the living-room ceiling under a first-floor bathroom after every shower.
- Damp patch appearing 20 minutes after a shower
- Musty smell in the room below
Inspection
Thermal scan of the ceiling below, optical check of floor-wall joints, fixture inspection.
Evidence
Moisture concentrated at the bathroom floor-wall junction, not at the tap line.
Diagnosis — Probable
Failed wet-area membrane at the floor-wall joint. Concealed pipe leak not supported by the scan; excluded pending any opening.
Treatment
Injection grouting at the joint, two-coat wet-area system. Plumbing left in place — not in scope.
Testing
Shower test after curing; ceiling below checked the next day.
Warranty quoted
Quoted 5-year bathroom wet-area warranty. Fixtures and later tile work excluded.
Same method on your building
Book an inspection. You get the diagnostic report before any coating is sold.