Aluminum is necessary in construction. The metal is used in practically all elements: skylights, building bridges, shutters, ladders and railings. The element is present in rods, doors, stampings, wiring, bars, tubing, sheets, pipes, casting and scraps. Aluminum is applied in a wide array of industrial applications. Staircases are sometimes made of aluminum too. The metallic element is found in many buildings. They are low maintenance. The light weight is also used for gutters. A layer of insulated aluminum cladding is as efficient as stones or bricks. Aluminum can be painted and joined with other materials. This can be used to change the looks of edifices. Carpenters and builders prefer aluminum because it is versatile. It can be cut, bonded, welded, tapered and curved in various shapes.