Various embodiments herein relate to methods, structures, tools, installation systems, etc. for retrofitting a new electrochromic window in a pre-existing window recess. In many cases, the new electrochromic window is installed parallel to a lite of a pre-existing window, with the resulting structure including the new electrochromic window, the pre-existing window, and a pocket that forms between them. Installation of a new electrochromic window in tandem with a pre-existing window results in many benefits including improved insulation (e.g., due to the presence of the additional air pocket(s) and lite(s)), improved climate control (e.g., due to the ability to control the amount of sunlight entering the building via the electrochromic window), and enhanced aes thetics.

A dynamic multi-pane insulating assembly and system including methods for dynamically maintaining the thermal resistance value of the assembly and system. The dynamic multi-pane insulating assembly and system includes an interior pane and first and second exterior panes. The first exterior pane and a first side of the interior pane defines an evacuated gap in communication with a vacuum source and a second side of the interior pane and the second exterior pane defines a pressurized gap in communication with the source of pressurized gas.

A dynamic multi-pane insulating assembly and system including methods for dynamically maintaining the thermal resistance value of the assembly and system. The dynamic multi-pane insulating assembly and system includes an interior pane and first and second exterior panes. The first exterior pane and a first side of the interior pane defines an evacuated gap in communication with a vacuum source and a second side of the interior pane and the second exterior pane defines a pressurized gap in communication with the source of pressurized gas.

The glass panel unit is a predetermined part separated from a completed assembly obtained by subjecting a temporary assembly to a predetermined process. In the temporary assembly, the inside space (500) enclosed by the first and second glass substrates and the frame is divided into the first space and the second space with the partition and the gas adsorbent is inside the first space. The predetermined process includes: converting the first space into the evacuated space by evacuating the first space through the gas passage, the second space, and the outlet; and changing a shape of the partition to close the gas passage to form the seal enclosing the evacuated space. The predetermined part includes: a first and second glass panels being parts of the first and second glass substrates; the seal; the evacuated space; and the gas adsorbent.

The glass panel unit is a predetermined part separated from a completed assembly obtained by subjecting a temporary assembly to a predetermined process. In the temporary assembly, the inside space (500) enclosed by the first and second glass substrates and the frame is divided into the first space and the second space with the partition and the gas adsorbent is inside the first space. The predetermined process includes: converting the first space into the evacuated space by evacuating the first space through the gas passage, the second space, and the outlet; and changing a shape of the partition to close the gas passage to form the seal enclosing the evacuated space. The predetermined part includes: a first and second glass panels being parts of the first and second glass substrates; the seal; the evacuated space; and the gas adsorbent.

Vacuum insulated glass (VIG) units having ring shaped pillars. The VIG unit comprises two sheets of glass, an edge spacer and multilayer sealants for hermetic sealing of peripheral edge with a high vacuum gap between two sheets of glass. A plurality of pillars is located between two sheets of glass to support vacuum compressive pressure. The ring shaped pillar is made of transparent engineering plastic or glass and can support a compressive strength of 400 MPa or more.

Vacuum insulated glass (VIG) units having ring shaped pillars. The VIG unit comprises two sheets of glass, an edge spacer and multilayer sealants for hermetic sealing of peripheral edge with a high vacuum gap between two sheets of glass. A plurality of pillars is located between two sheets of glass to support vacuum compressive pressure. The ring shaped pillar is made of transparent engineering plastic or glass and can support a compressive strength of 400 MPa or more.

A glass panel unit manufacturing method includes a bonding step, a pressure reducing step, and a sealing step. The bonding step includes bonding together a first substrate including a wired glass pane and a second substrate including a non-wired glass pane with a first sealant in a frame shape to create an inner space. The pressure reducing step includes producing a reduced pressure in the inner space through an exhaust port that the first substrate has. The sealing step includes irradiating the second sealant with an infrared ray externally incident through the second substrate to seal the exhaust port up with the second sealant that has melted.

A glass panel unit manufacturing method includes a bonding step, a pressure reducing step, and a sealing step. The bonding step includes bonding together a first substrate including a wired glass pane and a second substrate including a non-wired glass pane with a first sealant in a frame shape to create an inner space. The pressure reducing step includes producing a reduced pressure in the inner space through an exhaust port that the first substrate has. The sealing step includes irradiating the second sealant with an infrared ray externally incident through the second substrate to seal the exhaust port up with the second sealant that has melted.

A method of manufacturing a gas-filled triple glazing, including: a pre-assembly during which three sheets of glass are positioned beside one another, at least one of the sheets of glass including a spacer, each sheet of glass being positioned inclined by an angle between 0° and 10° with respect to an adjacent sheet of glass, to form two cavities, each of the cavities being between two adjacent sheets of glass; filling the two cavities by injecting gas into the two cavities at a same time using nozzles; pressing the sheets of glass against one another to seal the triple glazing. The method allows triple glazing to be manufactured quickly.