HouseSymptoms ranks likely causes from timing, location, weather and distinguishing evidence. The score is a transparent fit index—not a remote diagnosis.
Separate salt deposits from biological growth, crumbling finishes and active water entry.
Fit index compares this profile’s evidence. It is not a probability and does not prove a hidden condition.
Water dissolves salts in masonry and leaves crystals as it evaporates at the surface.
No strong confirming clue has been added yet.
No direct contradiction is active yet.
Liquid water moves through fine pores from a wet source toward a drying surface.
No strong confirming clue has been added yet.
No direct contradiction is active yet.
Hydrostatic or wind-driven water follows a crack or joint through below-grade construction.
No strong confirming clue has been added yet.
No direct contradiction is active yet.
Moisture and available nutrients allow growth on or within a surface layer.
No strong confirming clue has been added yet.
No direct contradiction is active yet.
Salt transport requires moisture movement through masonry.
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