Abstract: An automatic expander replacement window has a frame including left and right side member assemblies, a head member assembly and a sill member, each assembly including a frame element, an expansion element associated therewith and movable between a retracted position and an expanded position, a biasing element between and engaging the expansion element and its associated frame element and is of maximum bias where the expansion element is in its retracted position. A releasable strap holes the expansion element in the retracted position until the strap is cut, whereupon the biasing element drives the expansion element to its expanded position.

Abstract: A window construction has a frame with side members having longitudinal slots along the outer periphery thereof and expansion members engaging the slots and movable between closed positions and open positions in which the width of the frame is effectively increased, thereby to facilitate installation of the window frame. The frame also has a sill member and a head member and the side members, the sill member and the head member have casing slot portions that together provide a casing slot extending completely around the window frame, for sealingly receiving a casing therein. The window also has inner and outer sashes each having bottom, top and side members, and inner and outer moldings in snap-fit engagement therewith. The snap-fit engagement holds inner and outer panes in sealing engagement with the bottom, top and side members.

Abstract: A sill member for a replacement window is fabricated from an extrusion of plastic material and includes a first wall portion having a first inner face, a second wall portion having a second inner face, the first and second inner faces being placeable on the indoor and outdoor sides, respectively, of a window opening, and a solid main floor portion integrally joining the wall portions and having upper and lower planar parallel faces. The upper face of the main floor portion intersects the first inner face at an angle of about 93.degree.. The second wlal portion has an outer planar face parallel to the second inner face, the upper face of the main floor portion intersects the outer face of the second wall portion in an edge line, and the upper face of the main floor portion extends uninterruptedly to the edge line, to provide uninterrupted drainage of about 3.degree. from the first wall portion to the edge line.

Abstract: A double-hung window having a casing with side boards inwardly delimiting sash pockets is replaced by first stripping the casing of the sashes, then filling the sash pockets with fluent particulate insulation, and finally fitting a replacement window into the casing. These holes can be the ones left by removal of the sash-cord pulleys, or can be specially made. The insulation is cellulose and is filled into the pockets by being pumped thereinto. Furthermore on stripping of the sashes same are separated from the respective sash weights which are left in the respective sash pockets.

Abstract: A window construction has a frame with side members having longitudinal slots along the outer periphery thereof and expansion members engaging the slots and movable between closed positions and open positions in which the width of the frame is effectively increased, thereby to facilitate installation of the window frame. The frame also has a sill member and a head member and the side members, the sill member and the head member have casing slot portions that together provide a casing slot extending completely around the window frame, for sealingly receiving a casing therein. The window also has inner and outer sashes each having bottom, top and side members, and inner and outer moldings in snap-fit engagement therewith. The snap-fit engagement holds inner and outer panes in sealing engagement with the bottom, top and side members.

Abstract: A window construction has a frame with side members having longitudinal slots along the outer periphery thereof and expansion members engaging the slots and movable between closed positions and open positions in which the width of the frame is effectively increased, thereby to facilitate installation of the window frame. The frame also has a sill member and a head member and the side members, the sill member and the head member have casing slot portions that together provide a casing slot extending completely around the window frame, for sealingly receiving a casing therein. The window also has inner and outer sashes each having bottom, top and side members, and inner and outer moldings in snap-fit engagement therewith. The snap-fit engagement holds inner and outer panes in sealing engagement with the bottom, top and side members.