Siding is a type of exterior cladding that is installed on the walls of buildings to protect them from the elements and improve their appearance. Siding can be made from a variety of materials, including wood, vinyl, aluminum, and fiber cement. The process of siding installation involves measuring and cutting the siding panels to fit the walls, and then attaching them to the exterior using nails or screws. The panels may be installed horizontally or vertically, depending on the desired aesthetic. Siding can improve the energy efficiency of a building by providing insulation, and it can also add value to a property by enhancing its curb appeal. Properly installed siding can last for decades with minimal maintenance, making it a popular choice for both residential and commercial construction.