Facade maintenance refers to the ongoing care and upkeep of the external facing of a building, which can include cleaning, repairs, and preventative measures. A well-maintained facade is not only aesthetically pleasing, but it can also protect the building's structural integrity and prolong its lifespan. The frequency and type of maintenance required for a building's facade will depend on several factors, including the material of the facade, the age of the building, and the location of the building. For example, a building located in a heavily polluted urban area may require more frequent cleaning than a building in a rural area. One of the most common maintenance tasks for a building's facade is cleaning. This can involve washing the facade with water and detergent or using specialized cleaning products and techniques to remove dirt, grime, and stains.