A WINDOW FRAME ASSEMBLY
A window frame assembly 10 comprising a fibre cement sub-frame 12 which can be secured within a window opening in a wall, an aluminium window frame 18 which can be mounted to the sub-frame; and a number of retaining clips for releasably mounting the window frame to the sub-frame. Being of fibre-cement, the sub-frame is suitable for bonding to a layer of plaster. Exposed inner and outer sides of the sub-frame can be plastered when the external sides of the wall are plastered. Thereafter, at an appropriate time, the window frame, with glazing installed, can be mounted to the sub-frame.