Powerwash work involves the use of high-pressure water to clean and remove dirt, grime, and other contaminants from the exterior surfaces of a building or structure. Powerwashing is often used to clean the exterior of a building prior to painting or to remove graffiti or other stains. To perform powerwash work, the exterior surfaces to be cleaned are first inspected to determine the appropriate pressure and nozzle settings to use. The surfaces are then wetted down and the powerwash equipment is set up. The high-pressure water is applied to the surfaces using a wand or nozzle, and the dirt and grime are blasted away. Once the powerwashing is complete, the surfaces are rinsed and inspected to ensure they are clean and free of any remaining contaminants. Powerwash work should be performed regularly to maintain the cleanliness and appearance of the building’s exterior.