Abstract: In a curtain wall of metal-stud-frame type in which a metal frame is attached to the back surface of a concrete panel through a flexible anchor, a self-supporting type solid, knitted goods formed by knitting fibers in three dimensional directions with a pitch between each fabric exceeding 5 mm is buried in the skin of said concrete panel and the forward end of said flexible anchor is held in the space of cell of said solid, knitted goods. The curtain wall has a high bending strength and is easily manufactured and, therefore, suitable for use in external materials of buildings.