Since 1958, the residents of the Paggaio area of Kavala have been looking for ways to build their houses with natural materials, as they could not easily buy building materials (cement, tiles, etc.). This material was accidentally found at the foot of Mount Pangeo. It is a material that is torn from rocky slices into slices 3 – 4 cm thick, by its nature. At first, they found it on slopes and streams and hit it with a hammer and chisel to cut it off from the rest of the rock. So, almost everyone in the area started to cover their houses with slate.