Since 1990 the archaeological expedition has faced a major challenge in the field of conservation, as the royal palace differs from the neighboring Abi, as well as from the temple, through the frail walls, the walls of A6 were well preserved. The walls consist of a stone base, but the upper part of the walls is made of mud-brick, which cannot resist rain, snow, or heat, so it was necessary to think about the process of preserving them in a method that does not lead to the demise of the bricks that makes up the wall, where a simple and temporary protection program was invented in the beginning in terms of covering the walls with plastic and on top of it a fabric of the type of burlap, which is the same cloth that is used locally in the manufacture of wheat bags. This system worked well to give a sense of the ancient volumes and transmit the perception of the original architecture, and at the same time, it protected the wall from deteriorating but nevertheless had two problems. First, the tightly designed covers were more likely to be torn by the wind. Second, it took a long time to remove the fabrics to show the walls.
As excavations continued, new blocks were uncovered then the expedition came in front of about 400 linear meters of mud walls in the AK area, which required the development of the protection system to become more detailed and correspond with the size of the discovered structure, and this is what actually happened in 2003. The expedition devised a more effective and sustainable method, relying on local sources of materials, workers, and stakeholders. The goal was to preserve the walls as documents and at the same time to render the sense of volumes inherent in the architectural layout.
The new protective system was designed by a local tent maker and consisted of a metal structure with a roof in the form of a trellis, and metal sheets called in the local language (al-Tutiya) were fixed above it, then a thick layer of mud above the metal sheets on some walls. The aesthetic was one of the priorities of preservation, but not at the expense of the archaeological environment or the conservation itself, as we are in front of the remains of a building dating back to the third millennium BC and not a modern structure. This system is simple and easy to deal with, as it can be removed easily and in a short time and vice versa with regard to returning it to its place. Inspecting the walls does not require much effort because the burlap curtains for any part can be removed at any time and also can be opened and closed easily. The weak walls were also strengthened by adding saddlebags, which are pieces of cloth filled with sand and placed like a saddle on the wall.
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