A construction worker is a person who works in the building and construction industry. A BRICKLAYER, for example, is someone who lays bricks, stones, and other materials to construct or repair walls, foundations, and other structures. A solderer is someone who joins metal parts together using a soldering iron. A BUILDER is someone who plans, designs, and constructs buildings. A ROOFER is someone who installs and repairs roofs. A TILER is someone who lays tiles to cover walls, floors, and other surfaces. A hardhat is a type of protective headgear worn by construction workers. A mason is someone who builds structures out of stone, brick, and other materials. A welder is someone who joins metal parts together using heat. A craner is someone who operates a crane to lift and move heavy objects. Finally, a riveter is someone who fastens metal parts together using rivets.