Abstract: In a roof construction (10) with several erected support arches carrying a tentered roof skin (15), both ends of which support arches are held with a fixed distance to one another in the carrying state, each support arch (11)is constituted by several sections (12; 12a, 12b) each connected to one another via joints (13), where a lock is assigned to each joint (13), which limits the unfolding of neighboring sections (12a, 12b) to about their straightened position. In the carrying state of the support arch (11) all its joints (13) are bridged underneath by tensioned pulling connections (16), which engage on both sides of the bridged joint (13) on a section (12a, 12b). Furthermore, in the region of each joint (13)a spacer (19)is provided acting between the support arch (11) and the corresponding pulling connection (16), which spacer (19) directs the pulling connection inwards past the connecting line defined by the two points (18a, 18b) of engagement.