Repairing and conservation of the part of the walls at North Fort of Jajce (Papaz Tower - Banja Luka Gate)
For centuries, the City of Jajce has been the crossroads of routes leading from the inner continent towards the Mediterranean. The entire complex of the Jajce Fortress, with the city walls and towers, lies at the southern slopes of a large stone "pyramid", enclosed to the northwest by the bed of River Pliva, and to the northeast by the River Vrbas. The perimeter of the mediaeval town of Jajce is about 1300 m, with an area of 112,000 sq.m. Jajce Fortress is located in the northwest part of the city area, at the top of a hill. The shape of the fortress is of irregular quadrilateral. There are two strong four-sided towers placed at north-western and south-eastern angles. At the top, the walls end with defending walls of lime stone. Out of the original medieval defending walls � shields, only 4 are preserved, located above the Papaz Tower. The full width of this wall is approximately 4,0 m. The causes of damages are the following: first of all � precipitation water, poor connection between the wall facing and wall filling, bad quality of walls and connecting material, temperature changes, frost and generally the influence of atmospheric agents, influence of vegetation present at the wall surface and at the majority of horizontal surfaces. Also, defending walls and the walking lane lack adequate hydro-isolation, which all together contributed to looseness and increased humidity of wall filling, and caused serious deterioration of the part of existing fortress.