Start by getting the wall ready for installation. The surface should be smooth, free of dirt and dust, and completely dry. Then apply an appropriate contact adhesive, such as Wakol D-3540, to both the wall and the back of the natural cork. Use a brush or paint roller to distribute the adhesive in a smooth, even coat. Wait until the glue turns transparent before attaching the material. Carefully position the cork roll on the wall, then press firmly across the entire area to ensure good contact. Allow approximately 24 hours for the adhesive to fully cure, and avoid moving or disturbing the newly installed cork during that time.