④ unit glass curtain wall
In addition to the multiple panes of glass, insulated window units also feature low-emissivity (low-E) coatings on the glass surfaces. These coatings help to reflect heat back into the room, further reducing heat transfer through the windows. Low-E coatings also help to block harmful ultraviolet (UV) rays, which can fade furniture and flooring over time.
Additionally, frosted glass can be treated in various ways, including sandblasting and acid etching, to achieve the desired level of opacity and design complexity
. This adaptability means that decorative frosted glass can be used in windows, doors, room dividers, and even furniture, integrating seamlessly into many different environments.