A carport is a covered structure used to offer limited protection to vehicles, primarily cars, from the elements. Modern carports are typically made of metal (steel, tin, or aluminum) and are modular in style in the USA, while remaining flat-roofed permanent structures in much of the rest of the world. The carport was therefore a cheap and effective device for the protection of a car. Mr. Jacobs added: "Our cheap second-hand car had stood out all winter at the curb, often in weather far below zero (Fahrenheit). Gaining in popularity, these metal carports have overcome the stigma that was attached to them from their beginnings as cheap substitutes for the real thing. Due to modern steel molding and manufacturing techniques today's metal carports are more durable and longer lasting than past iterations.