Abstract: A building system and a method for constructing a building, the system (100) comprising plurality of prefabricated elements (I), the element (1) comprising: a self-supporting insulation panel (2) comprising a rigid insulation material, —a metal frame (3), comprising a pair of sub-frames. The length of the sub-frame (7a, 7b) has a cross-section comprising an attaching arm (10) extending along the corresponding edge surface (6a, 6b), and an intruding section (11) arranged in the attaching arm (10), the intruding section (II) intruding into the insulation element (5). A box-type structure (12) is arranged distally from the intruding section (11) and comprising a closed or partly open construction. The building system further comprises a connecting element (4), having a cross-section basically a shape of a U-profile. The connecting element (4) is arranged on sub-frames (7a, 7b) of two adjacent elements (1).

Abstract: A building system and a method for constructing a building, the system (100) comprising plurality of prefabricated elements (I), the element (1) comprising: a self-supporting insulation panel (2) comprising a rigid insulation material, —a metal frame (3), comprising a pair of sub-frames. The length of the sub-frame (7a, 7b) has a cross-section comprising an attaching arm (10) extending along the corresponding edge surface (6a, 6b), and an intruding section (11) arranged in the attaching arm (10), the intruding section (II) intruding into the insulation element (5). A box-type structure (12) is arranged distally from the intruding section (11) and comprising a closed or partly open construction. The building system further comprises a connecting element (4), having a cross-section basically a shape of a U-profile. The connecting element (4) is arranged on sub-frames (7a, 7b) of two adjacent elements (1).