A window glazing assembly that can convert an existing or already-installed window, or be used to assemble new construction windows as a multi-pane or multi-glazed window unit, is provided herein. In particular, the glazing assembly includes an attachment assembly (e.g., peel-and-stick double-sided adhesive tape) and one or more glazing layers. Some embodiments further include a spacer assembly comprising a plurality of spacer bars that may be individually installed, e.g., one by one, around the perimeter of the window such as, to the window sash, window frame, or glass window pane, itself. The glazing layer(s) can then be secured or adhered to the spacer assembly, for example, around the perimeter thereof. Some embodiments may include additional or intermediate glazing layers, providing additional insulating airspaces and enhanced performance.

A multi-glazed window assembly is presented herein. The assembly includes a plurality of glazing layers arranged in a parallel relation to one another and defining at least one insulating airspace there between. The assembly also includes a perimeter spacer assembly and a resilient foam outer wrapping. The perimeter spacer assembly is attached along a length of an interior surface of the outer wrapping defining at least one interior channel. An intermediate glazing layer is mounted within the channel while outer glazing layers are disposed on opposing sides of the intermediate glazing layer and laterally spaced therefrom. The resilient foam outer wrapping then extends entirely around a collective perimeter of the glazing layers, thereby creating a multi-glazed window assembly formed with a gasket-like foam outer surface and with minimal seams and material.

A spacer for insulated glass units includes a main body co-extruded from first and second plastics, the second plastic having lower thermal conductivity and higher flexibility than the first plastic. The main body includes first and second side walls arranged parallel to each other, a glazing interior wall connecting to the side walls, an outer wall, which is arranged substantially parallel to the glazing interior wall and connects the side walls to one another directly or via connecting walls, and a cavity, which is enclosed by the side walls, the glazing interior wall, and the outer wall or by the side walls, the glazing interior wall, the outer wall, and the connecting walls. The main body is designed as a hollow profile formed from the second plastic, in which hollow profile the first plastic is arranged, at least in some regions, on the inside directly adjacent the hollow profile.

A vacuum insulating panel may include: a first substrate; a second substrate; a plurality of spacers provided in a gap between at least the first and second substrates, wherein the gap is at pressure less than atmospheric pressure; and a seal (e.g., edge seal) provided at least partially between at least the first and second glass substrates. Components such as edge seal material(s) and/or dimension(s) thereof are configured in a vacuum insulating panel to improve thermal performance to provide for higher glass temperatures on the warm side of the panel during asymmetric thermal conditions, proximate the edge seal and/or at other locations, so as to improve thermal performance.

A thermally enhanced extrudate includes a channel, a first wall, and a second wall. The channel extends along a longitudinal axis from a first end to a second end of the thermally enhanced extrudate and is shaped to receive glass or a frame. The second wall is spaced from the first wall. The first wall and the second wall partially enclose a thermal break extending along the longitudinal axis. The thermal break has a first width defined between the first wall and the second wall at an upper end of the thermal break and a second width defined between the first wall and the second wall at a lower end of the thermal break. The thermally enhanced extrudate further includes a solid insulation material in the thermal break between the first and second walls and formed by curing a flowable material.

An assembly and method of drawing differing types of sheet stock through one or more assembly stations to make a spacer frame that is used in an insulating glass unit is disclosed. The assembly and method include fabrication of a spacer frame having a recess formation in a portion of a peripheral wall of a connecting structure that allows two ends of the spacer frame to form a lateral connection. The assembly and method further include feeding along a process axis formed by a path of travel of the material an elongated length of sheet stock into a feeder press and a roll former, both having translating rollers that move transversely to the process axis to accommodate different materials used in the sheet stock. The assembly and method also include a swaging assembly for forming a recess formation in a portion of the peripheral wall of the spacer frame.

A vacuum insulating panel may include: a first substrate; a second substrate; a plurality of spacers provided in a gap between at least the first and second substrates, wherein the gap is at pressure less than atmospheric pressure; and a seal (e.g., edge seal) provided at least partially between at least the first and second glass substrates. Components such as edge seal material(s) and/or dimension(s) thereof are configured in a vacuum insulating panel to improve thermal performance to provide for higher glass temperatures on the warm side of the panel during asymmetric thermal conditions, proximate the edge seal and/or at other locations, so as to improve thermal performance.