Abstract: An outwardly opening window assembly (1) for mounting in a window opening (27), said window assembly comprising: a plate element (4), a window sash (3) comprising a top sash element (3a), a bottom sash element (3c) and two side sash elements (3b,3d), said window sash elements arranged at the periphery of said plate element, a window frame (2) comprised of a top frame member (2a), a bottom frame member (2c) and two side frame members (2b,2d), said window frame members arranged at the periphery of said window sash when the window assembly is closed, a mounting fitting (5,6) which connects at least one of the window sash elements (3b) to at least one of the window frame members (2d).