Composite profiles suitable for insulating window units

A composite profile suitable for a window, door or facade element, comprising:

• at least one profile member extending in a longitudinal direction, the profile member comprising at least one profile member connecting portion,
• at least one connecting member extending in the longitudinal direction, the connecting member comprising at least one corresponding connecting member connecting portion arranged and constructed to be connected to the at least one profile member connecting portion such that at least one pair of corresponding connecting portions is present,
• wherein one of the profile member connecting portion or the connecting member connecting portion comprises at least one assembly recess extending in the longitudinal direction and the other of the profile member connecting portion or the connecting member connecting portion comprises at least one assembly protrusion arranged and constructed to be inserted into the assembly recess in a direction perpendicular to the longitudinal direction,
• wherein the at least one assembly recess comprises a plurality of first form fit elements and the assembly protrusion comprises a plurality of second form fit elements such that the first and second form fit elements are connectable in a form fit by a curable connecting material disposed within the assembly recess, and
• at least two sealing devices extending along the longitudinal direction of at least one of the profile member and the connecting member, wherein the corresponding connecting portions are disposed between the at least two sealing devices such that the connecting portions are not visible from outside the composite profile when the at least one assembly protrusion is inserted into the at least one assembly recess.