Walls liable to damp are sometimes battened and lathed to form an air cavity between the damp wall and the plastering.

You can smell it all, the cooking smells seeping through the thin, damp walls, the endless mud, the revolting lavatories.

Warning signs include musty smells and damp walls.

It has long, strap-shaped fronds that grow in pendulous circles on hedge-banks and the damp walls of old buildings.

On damp walls there are clusters of ivy-leaved toadflax.