Profiled strip with a mounting device for attaching the profiled strip to a component and with a sealing device for joint sealing of a joint between the component and the profiled strip which is provided for connection of a wall layer, wherein a sealing body of the sealing device forms a unit with the profiled strip and comprises a fastening limb for attaching to the component by means of a component-connecting device , wherein the profiled strip comprises a supporting device , - which is suitable for being arranged in a mounting position between the fastening limb and a profiled strip limb of the profiled strip , - which, in a mounting position, is suitable for holding the fastening limb in a defined position relative to the profiled strip limb and for producing a connection of the profiled strip to the component , - which is covered on the face by a cover portion of the sealing body and - which, during relative movements between the profiled strip and the component in an installation position, is suitable for permitting compensation of movement between fastening limb , which moves with the component , and the profiled strip limb by adapting the cover portion , and wherein the sealing body or its cover portion forms a joint cover on the visible side which extends over the joint , characterised in that - either the sealing body comprises two unconnected abutment portions or two connected abutment portions or one unconnected abutment portion and one connected abutment portion , wherein, in the mounting position, one of the two abutment portions is suitable to extend along the profiled strip and the other of the two abutment portions along the component and, during relative movements between the sealing body and the profiled strip or the component , is suitable to lift up from the profiled strip or the component , - or the sealing body is folded, in particular in a region which is covered on the visible side. - which is suitable for being arranged in a mounting position between the fastening limb and a profiled strip limb of the profiled strip , - which, in a mounting position, is suitable for holding the fastening limb in a defined position relative to the profiled strip limb and for producing a connection of the profiled strip to the component , - which is covered on the face by a cover portion of the sealing body and - which, during relative movements between the profiled strip and the component in an installation position, is suitable for permitting compensation of movement between fastening limb , which moves with the component , and the profiled strip limb by adapting the cover portion , - either the sealing body comprises two unconnected abutment portions or two connected abutment portions or one unconnected abutment portion and one connected abutment portion , wherein, in the mounting position, one of the two abutment portions is suitable to extend along the profiled strip and the other of the two abutment portions along the component and, during relative movements between the sealing body and the profiled strip or the component , is suitable to lift up from the profiled strip or the component , - or the sealing body is folded, in particular in a region which is covered on the visible side. <EOS>