When we speak of Steel shading usually mean the material used for the supporting structure . The steel or aluminum can be used both but the second is preferred when the structures to be achieved must not bear large loads.In fact, the aluminum , being lighter , is not suitable to support large Sunscreening systems installed on the wall .
Alongside these classic materials is nevertheless catching on another product can be used both in the backbone and in the slats of the sunshades.The COR-TEN.