Because dried then was a standard judged by the instruments and the timeline of an emergency, and some wall cavities and floor systems kept moisture past the point where growth was inevitable. It is also possible the growth is newer, fed by a condensate or plumbing source that arrived later. The moisture map separates the two stories by where the growth sits and what feeds it today, and the distinction matters: it decides the scope, and it shapes what any coverage conversation can honestly claim.
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