josephrohdes221
New Member
How old was the carpet you took out? It sounds like the black stuff is the old underlay, now pretty rotted. Some carpet underlays were/are made with one or more layers of rubber or latex: both of these dry out and get stiff and powdery over time. Rubber is black naturally; latex sometimes is colored black.
If it were mold, it would have had that distinctive moldy smell. There's no mistaking the smell of mold.
If it were mold, it would have had that distinctive moldy smell. There's no mistaking the smell of mold.