ABSTRACT
During the Middle Ages, in the Balkans, situated in the south part of Europe, different materials were used for covering the buildings of that time. It is supposed that most of the oldest medieval buildings were originally covered with slate used as the final covering.
The tendency in retaining the slate roof covering in some buildings and keeping the appearance of these monuments as well as the reuse of stone as an authentic covering material is possible only by the application of the modern principles of double ventilated roofs.
Applying the modern principles of double ventilated roofs using stone as the main roof covering performed in this way, the conservation of frescos more than nine centuries old as well as the successful reconstruction of medieval buildings of priceless worth will be made possible as a way of contribution to the whole world cultural inheritance.
