Capping work involves the installation, repair, or maintenance of a protective layer or cap on a building or structure. Capping is typically used to protect the tops of walls, columns, or other vertical surfaces from water infiltration and to enhance the appearance of the building. Capping materials may include stone, brick, precast concrete, wood, or metal. To install capping, the surface of the wall or structure must be prepared and any damaged areas must be repaired. The capping material is then cut to size and attached to the surface using mortar, concrete, nails, screws, or adhesive. The capping is installed in a predetermined pattern, starting at the top of the wall or structure and working down. Once the capping is in place, it is trimmed and finished with corner trim, door and window trim, and any other necessary accents. Capping should be inspected regularly and any necessary repairs or maintenance should be performed as needed to ensure the capping remains in good condition.