
Restoration of cultural heritage

Restoration of cultural heritage
Restoration
of cultural
heritage

Construction is an activity that has left a lasting legacy to humanity that we have the opportunity to admire again and again.
Inspired by this very fact, ING-GRAD was founded as a construction company whose activities include specialized works comprised of: restoration and reconstruction of monumental heritage of exceptional historical and artistic significance.
In more than 35 years of work on the restoration and reconstruction of the monumental heritage, we have been using all the advantages of modern construction methods, but also applying unique knowledge based on the techniques, skills and recipes of old crafts.
Most buildings of cultural or architectural heritage are brick buildings built of stone or brick wall elements connected with mortar, usually found in poor condition due to their age and inadequate maintenance. Therefore, before the renovation and final arrangement, it is necessary to carry out constructive restoration. The complexity of the historical buildings restoration requires the incompatibility of traditional and new materials and respect for their original existence, which is why the use of reinforced concrete is not recommended. The most favourable technique for repairing and strengthening such constructions has proved to be injection, i.e., stabilizing and closing cracks in damaged walls by injecting special injection compounds, applying reinforced cement or epoxy coatings on one or both sides of the wall, and pre-tensioning the walls.
Roofs of monumental heritage buildings are usually wooden roofs with different types of covering, depending on the tradition of the climate in which the building is located. The reconstruction of such wooden roofs implies the replacement of individual elements or the complete structure with new wood, most often made of Slavonian oak or conifer, and the replacement of the covers.
The renovation and reconstruction of the building includes the renovation of the external facade, the execution of profiles and stone plastic, the production of wooden joinery and everything that includes the restoration of the historical appearance and original condition. It is done according to conservation guidelines, which is why the restoration and reconstruction of the building is longer and requires specific materials, works and methods of execution.
Investor
Municipality of Motovun
Category
Castels, Palaces and Fortresses
The medieval walls of the city of Motovun are ring-shaped and semi-ring-shaped and form a concentric plan typical of a medieval city. The oldest core of the city is surrounded by defensive walls from the 13th and 14th centuries, which rest on older foundations, their height is 9 to 15 m, and their length is about 45 m. On the inside, these walls are reinforced with a series of niches that served as loopholes , and on prominent parts they have quadrangular defensive towers. At the top of the walls, today there is a Vladimir Nazor promenade that leads around the highest part of the city, and once this walk was strengthened on the outside with parapets that were removed in the 16th and 17th centuries. A suburb developed on the southern slope of the hill and later on its eastern part a suburb which was also surrounded by ramparts. Over time, these ramparts lost their defensive function and were partly incorporated into built structures. Today they are preserved in traces. All three parts of the city are connected by a system of external and internal fortifications with walls, towers and city gates, built between the 15th and 17th centuries.
The demanding rehabilitation of the part of the walls on the outside of the city and the rehabilitation of the retaining wall of the Barbican included the injection of wells with an injection mixture based on lime and white cement, the dismantling of loose blocks and their partial replacement with new blocks that correspond to the old ones in terms of material, dimensions and processing.