You probably have water seeping into the walls that creates mold.
wet
Wet Weather - 1922 was released on: USA: 3 September 1922
A disturbance in the atmostphere.
Dry weather
wet weather
they got their supplies wet and their selves wet
wet :)
So we can get wet
Wet and Cold
The hydrogen creates a sticky bond with the oxygen molecule to create what we know as a wet texture.
Wet, and sort of sunny weather