Abstract: A window assembly (10) with its glazing frame that stays independently from lateral movement of building main structure (44) is disclosed. The window assembly (10) includes an outer retaining frame (12) and an inner glazing frame (14). The outer retaining frame (12) is attached to the building main structure(44). The glazing frame holds glass pane (20), and sits inside the outer retaining frame (12). Between the outer retaining frame (12) and the inner glazing frame (12) is a predetermined clearance space (X) and (Y), at their vertical edges and their top edge. The resulting window assembly allows the glazing frame to retain its shape, while the outer retaining frame (12) moves laterally with the main structure (44) during an earthquake or blast, thereby minimizing the chance of glass breakage. Application of glazing gasket (32) or sealant (54) provides watertight result to the window assembly (10).

Abstract: A window assembly (10) with its glazing frame that stays independently from lateral movement of building main structure (44) is disclosed. The window assembly includes an outer retaining frame (12) and an inner glazing frame (14). The retaining frame is attached to the building main structure. The glazing frame holds glass pane (20), and sits inside the retaining frame. Between the retaining frame and the glazing frame is a predetermined clearance space (X) and (Y), at their vertical edges and their top edge. The resulting window assembly allows the glazing frame to stay in its shape, while the retaining frame moves laterally with the main structure during earthquakes or blasts, thereby minimizing the chance of glass breakage. Application of glazing gasket (32) or sealant (54) provides watertight result to the window assembly.