Expect continuous moisture migration through wall cavities for 24 to 72 hours after water damage
https://express-certified-safe-cs.lowescouponn.com/disclosure-and-documentation-standards-shape-what-insurance-actually-covers-for-water-damage-claims
When drywall gets wet, drying typically takes 24 to 72 hours under ideal conditions, but the timeline depends on saturation depth, humidity, and active dehumidification