Abstract: A doubly curved structure which is clad with a tensioned, fabric-containing membrane which is disposed above but not contiguous with the exterior surface of the structure. The two ends of the cladding membrane are each connected to an attachment member which, in turn, is attached to the exterior surface; and the intermediate portion of the membrane is contiguous with a standoff member which is disposed between the cladding membrane and the exterior surface. An arc with a substantially concave curvature is formed by such membrane between at least one of the attachment members and the standoff member.

Abstract: The present invention is system for covering structures that have complex surfaces using tensioned membrane panels which exhibit maximum flexibility over multiple curvatures of the structure's surface. The system includes a means for supporting the cladding membrane over the structure, a means for tensioning the cladding membrane and a means for securing the tensioned cladding membrane to the structure. Generally, ribs are mounted to the structure wherein the ribs provide support for the cladding membrane. Attached at least one of the ribs are clamping channels which secure the tensioned cladding membrane to the structure. The ribs can be thermally isolated from the building surface to minimize directly conducted heat loss. Additionally, the tensioned membrane cladding system usefully accommodates various methods of applied insulation between the cladding membrane and the structure.