A glazing construction for positioning and sealing, from inside the building, a window pane within a rigid frame. A resilient gasket has, in cross section, the shape of a lower case letter '''' h'''' including an outer strip, an intermediate web and a lower flange. The gasket is installed on a rigid frame larger than the glass pane so that the outer border defined by the outer strip is smaller than the glass pane, and the intermediate border defined by the intermediate web is slightly larger than the glass pane. The glass pane is installed from inside the building by movement normal to the plane of the window and directly into the intermediate border. A rigid sill member is then secured around the opening inside the building to provide a sill border smaller than the glass pane. Finally, a plurality of resilient wedge pieces are positioned between the sill border and glass pane to secure the glass pane in place.