Thermally insulating component for use in a joint between a supported structure and a supporting structure, in particular between a balcony slab and a building ceiling, comprising an insulating body, wherein the insulating body has a longitudinal direction and long sides (9, 10) that extend in the longitudinal direction and are opposite one another, wherein at least one thermally insulating connecting element (13, 14, 15) extends through the insulating body, wherein the connecting element (13, 14, 15) is configured to be rod-shaped and comprises a first connecting portion, a second connecting portion and a central portion arranged between the connecting portions (21, 23), wherein the length (l 3) of each connecting portion (21, 23) corresponds to at least 5 times the largest diameter (d) of said connecting portion (21, 23), wherein the connecting element (13, 14, 15) consists of fibre-reinforced material and wherein at least a partial cross-section of the connecting element (13, 14, 15) extends in one piece and continuously through the first connecting portion, the central portion and the second connecting portion, wherein the rigidity of the connecting portion (13, 14, 15) in the central portion is greater than in the connecting portions (21, 23), wherein the central portion protrudes out of the insulating body at at least one long side (9, 10) of the insulating body, characterised in that the connecting element (13, 14, 15) comprises at least one base element and at least one reinforcing element connected to the base element, wherein the at least one base element extends continuously through the connecting portions (21, 23) and the central portion and forms at least a part of the partial cross-section, and wherein the at least one reinforcing element is arranged in the central portion and does not extend in the connecting portions (21, 23). wherein at least one thermally insulating connecting element (13, 14, 15) extends through the insulating body, wherein the connecting element (13, 14, 15) is configured to be rod-shaped and comprises a first connecting portion, a second connecting portion and a central portion arranged between the connecting portions (21, 23), wherein the length (l 3) of each connecting portion (21, 23) corresponds to at least 5 times the largest diameter (d) of said connecting portion (21, 23), wherein the connecting element (13, 14, 15) consists of fibre-reinforced material and wherein at least a partial cross-section of the connecting element (13, 14, 15) extends in one piece and continuously through the first connecting portion, the central portion and the second connecting portion, wherein the rigidity of the connecting portion (13, 14, 15) in the central portion is greater than in the connecting portions (21, 23), wherein the central portion protrudes out of the insulating body at at least one long side (9, 10) of the insulating body, characterised in that the connecting element (13, 14, 15) comprises at least one base element and at least one reinforcing element connected to the base element, wherein the at least one base element extends continuously through the connecting portions (21, 23) and the central portion and forms at least a part of the partial cross-section, and wherein the at least one reinforcing element is arranged in the central portion and does not extend in the connecting portions (21, 23).