The surface of the

Walls are usually insulated with special mats consisting of mineral wool. They must be very tightly, without cracks, lay inside the wall. The surface of the inner walls, the ceiling will turn out perfect, as they are sheathed with calibrated wood. For exterior decoration, at least some materail is suitable: finishing stone, facing brick, plaster, siding, wooden lining, etc. D. You can apply their combination — you get an unusual design.