The roofs of the smaller buildings-some of them were finished-and the unfinished upper surfaces of the sprawling house all drained into barrels or cisterns.

"A lot of people prefer an unfinished surface of raw brick," he said.

Other sections have been cleared and had drainage work done, but still have a somewhat rough, unfinished surface that is not suitable for road bikes.

The appearance of rustication, creating a rough, unfinished stone-like surface, can be worked on a wooden exterior.

Watch for projecting veneer tabs that cover unfinished surfaces of adjacent pieces when the project is assembled.

An unfinished surface is often called mill finish.

Patina is usually most noticeable on the unfinished surfaces, like the sides and bottom of a drawer, the backs of chairs or the underside of a tabletop.

Exposed brick and boulder stone masonry in its rough form produced unfinished concrete surfaces, in geometrical structures.

Georgia Illetschko insisted in 2004, these unfinished surfaces are "a conscious compositional element."

The unfinished surfaces - walls and floors with no cladding or insulation - stir a dreadful sense of normal life dehumanized, of metal, bone and ash.