The exterior of a building can change over time, and affect the original intended aesthetics. This can occur through weather conditions, or more commonly, deliberate vandalism such as graffiti. In these types of cases, modern stone cleaning techniques can restore the original look of a building. The most environmentally friendly technique of stone cleaning is high pressure hot and cold water treatment, which abrasively removes unwanted surface material. Solvent-free paint strippers are used to effectively remove even the heaviest applications of graffiti.
