Passing years and environmental damage had taken an inevitable toll and the external stonework of Sligo City Hall and required urgent repair. Remmers RM was used in place of replacement stone to give a cost effective but authentic looking repair. Remmers restoration mortar is designed to behave like natural stone in wear and permeability as well as appearance.

For various reasons, the structure was beginning to crack in some places. The structural stability and load-bearing capacity were improved by bracing the structures, creating a force-fit bond at the damaged foundations and decoupling the gate, passage hall and gatehouses. On the western side in particular, the stone surface had darkened considerably over time, with the subsoil sticking to it firmly. The deposits consisted of a mixture of soot and plaster. Cleaning was carried out in 1990 using water, but this only had a superficial effect. In 2002, the newly developed process for particle jet cleaning and laser cleaning made it possible to remove soot and plaster without destroying the original surface.

The exterior of the building was completely refurbished and Remmers RM was used to reconstruct the decorative elements. Large sections were rendered with a lime render which also required a breathable, durable coating system that is compatible.

The towers are in motion, striving apart and back together again as the seasons change. The 800-year-old sandstone disappeared under crusts, and weathering and salts harmful to the building also played their part in destroying it.

The microbiological load of the building bricks and the high mobility of the stored hygroscopic magnesium sulphates required adequate moisture protection in the area of the paint setting systems. Due to the high salt loads, a hydrophobic impregnation was ruled out. In order to minimize the water ingress via the facade surface and the associated damage processes, a silicone resin paint was selected.

Owing to the weathering that had taken place over many thousands of years, the fragments of the building exhibited different wear patterns and strength profiles. These had to be levelled out using a variety of stone strengtheners. In addition, the chemical processes within the limestone were blocked, preventing future water and dirt absorption. Levelling out the differences between the fragments was also an important step in achieving a uniform appearance. Cracked relief blocks had to be bonded together. Some of the limestone elements exhibited pronounced swelling and shrinkage due to swelling clay minerals. This process had to be stopped. During the restoration of the sphinx statues, the building fabric had to be taken into consideration, along with the fact that no single figure was completely preserved. This meant that up to six complete figures had to be reconstructed from the many fragments.

One part of the two-year renovation of the South Bank Centre was a large-scale concrete restoration of the exposed concrete surfaces in the interior of the world-famous art rooms. The walls and ceilings in the Queen Elizabeth Hall, Hayward Gallery and Purcell Room were restored to their original state by means of colour matching. In order to clean the surface from dirt, the room was prepared under strict observation of the room temperature and relative humidity. The film-forming peel-off paste Arte Mundit was applied in the required thickness to remove the surface impurities. This created a cleaner, brighter environment.

The buildings of "New Holland" have been restored several times over the years and have been repeatedly supplemented with new buildings and extensions. All buildings were damaged inside as well as on the facade and roof. The brick facades in particular, which were heavily soaked through, posed a major problem. In addition, damage to the masonry and the cladding of the plinths was detected. During the restoration of the brick masonry, the varying condition as well as the heterogeneous nature proved to be a particular challenge. There was also high salt content, which could be damaging to the building and therefore had to be reduced. Finally, the aim was to achieve the most harmonious possible colour matching of the stone surfaces.

The restoration of the building, which is over one hundred years old, was a complex task. The facade first had to be cleaned with special product due to the high degree of contamination with heavy efflorescence and sintering, The damaged joints were then repaired. The white natural stone elements of the façade were desalinated with compresses and then re-profiled and supplemented. This was followed by stone consolidation and hydrophobing. A mineral sealing was applied in the base area, which was finished with a new layer of plaster. Therefore protecting the building from further moisture ingress.

The restoration project which took two years involved extensive internal and external stone and mortar repairs using Remmers RM.

On the façade surfaces of Kaispeicher A, there was a lot of efflorescence and lime aging, both signs of penetrating moisture. The damage patterns indicated a lack of frost resistance as well as no protection against driving rain. The listed façade required extensive frost and moisture protection, but was not allowed to undergo any visual changes.

For decades, the natural stone façade of the cathedral had been exposed to the elements and was suffering the effects of prolonged sun, wind, rain and frost. Another danger to the stone was sulphuric acid, which was produced by the combination of sulphur dioxide and acid rain. As a result, the stones started to convert to gypsum and their encrusted surface absorbed even more toxic liquid. As an initial repair measure, the affected elements of the façade were treated with solvent-free silicic acid ester-based stone strengtheners to fix the weathered and loosened stones. A hydrophobic impregnation was then applied. The silane/siloxane-based material provides the façade with long-lasting protection against driving rain and UV radiation and reduces the accumulation of dirt on the masonry.