Terrace roof or pergola made of wood or metal
A terrace roof, unlike a pergola, is a closed roof on supports that is attached to a house. Supports and roof are usually built of wood or metal, while all sides are open. Metal terrace roofs can be glazed, in which case the load-bearing capacity is important. Wood is easier to work with, but needs more maintenance; metal is more stable, weatherproof and easy to maintain, but more expensive. A wooden terrace roof can easily be planted with greenery, for example, ivy or wild vines.