Curtain wall mounting system for the location of facade cladding on the facades of building structures with a facade subconstruction consisting of supporting elements fastened to the building structure and carrier profiles in the form of floating bearings or fixed bearings connected to the supporting elements with facade cladding located at the carrier profiles characterized by the fact - that the L shaped, right-angled supporting element with an all-round carrying strap is formed in such a way that one or several of these webbed plates are located inside the all-round the carrying strap next to one or several webbed plates and / in individual regions of the all-round carrying strap with reinforcement ribs connected with each other, where the L shaped supporting element has a wall corner length with a wall corner region of the carrying strap and a profile mounting length, and - there's a clearance hole located vertically in the wall corner region located at the free end of the wall corner length vertical to the surface of the carrying strap which penetrates through both regions of the carrying strap lying opposite to each other in the region of the wall corner length and which can hold fastening element forming an operative connection with the building structure, and - that a enclosed bearing guide enclosed in certain regions by the carrying strap is located in certain regions at the free end of the profile mounting length, and - that either a profile guide slot or a profile guide plate is located at the free end of the profile mounting length in the region of the bearing guide to hold and guide the carrier profiles, and - that one/several guide elements are located in the bearing guide connected with the carrier profile which can be slid in a linear manner, as "floating bearings"; or on/several position securing elements connected with the carrier profile are fixed exactly into position in the bearing guide as "fixed bearings". - that the L shaped, right-angled supporting element with an all-round carrying strap is formed in such a way that one or several of these webbed plates are located inside the all-round the carrying strap next to one or several webbed plates and / in individual regions of the all-round carrying strap with reinforcement ribs connected with each other, where the L shaped supporting element has a wall corner length with a wall corner region of the carrying strap and a profile mounting length, and - there's a clearance hole located vertically in the wall corner region located at the free end of the wall corner length vertical to the surface of the carrying strap which penetrates through both regions of the carrying strap lying opposite to each other in the region of the wall corner length and which can hold fastening element forming an operative connection with the building structure, and - that a enclosed bearing guide enclosed in certain regions by the carrying strap is located in certain regions at the free end of the profile mounting length, and - that either a profile guide slot or a profile guide plate is located at the free end of the profile mounting length in the region of the bearing guide to hold and guide the carrier profiles, and - that one/several guide elements are located in the bearing guide connected with the carrier profile which can be slid in a linear manner, as "floating bearings"; or on/several position securing elements connected with the carrier profile are fixed exactly into position in the bearing guide as "fixed bearings".