Roof leak vs plumbing leak
Use rain timing, fixture timing and what lies above the stain to separate two common ceiling-water pathways.
☂Roof water entry
VS≈Hidden plumbing leak
Typical location
Upper ceilings, roof penetrations, eaves and attic surfaces
Below bathrooms, kitchens, appliances or supply routes
Timing fingerprint
Rain, wind-driven rain or thaw
Fixture use or continuous pressurized leakage
Visible or audible pattern
Localized rings, wet insulation or a path below a penetration
Localized active dampness, staining or soft finish
Best separating check
Correlate moisture with weather and inspect above the mark
Compare the symptom before and after controlled fixture use
Evidence that weakens it
Only changes after fixture use
Only appears after rain
The rule
Use this comparison in Clue Engine →Do not repair the resemblance. Verify the pathway.
Color and shape can overlap. Timing, location and a repeatable check usually carry more diagnostic weight.
