a dwelling where the walls consist of a layer of brick covering timber framework. The bricks have no structural role
Masonry veneer walls consist of a single non-structural external layer of masonry, typically made of brick, stone or manufactured stone. Masonry veneer can have an air space behind it and is technically called "anchored veneer". A masonry veneer attached directly to the backing is called "adhered veneer". The innermost element is usually structural wall, and may consist of concrete masonry (often called a Cavity wall where inner and outer layers are both structural), concrete, wood or metal frame.
Because brick itself isn't waterproof, the airspace also functions as a drainage plane, allowing any water that has penetrated the veneer to drain to the bottom of the air space, where it encounters flashing (weatherproofing) and is directed to the outside through weep holes, rather than entering the building.
Other advantages of a masonry veneer include: