The myth of a noisy steel building came from barns constructed without insulation and had steel roofs installed. When it rained, the water ran down the sides of the building and into the eaves, where it dripped onto the floor. This produced a loud clanging sound. However, modern buildings are insulated on the second floor, and the attic protects the home from noise. Therefore, metal roofs do not produce the same sounds as old barns did.