A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air. Modern windows are usually glazed or covered in some other transparent or … See more

The Romans were the first known to use glass for windows, a technology likely first produced in Roman Egypt, in Alexandria c. 100 AD . Presentations of windows can be seen in ancient … See more

EN 12519 is the European standard that describes windows terms officially used in EU Member States. The main terms are:
• Light, or Lite, is the area between the outer parts of a window (transom, sill and jambs), usually filled with a glass pane. Multiple panes are … See more

Sun incidence angle
Historically, windows are designed with surfaces parallel to vertical building walls. Such a design allows considerable solar light and heat penetration due to the most commonly occurring incidence of sun angles. In See more

The English language-word window originates from the Old Norse vindauga, from vindr 'wind' and auga 'eye'. In Norwegian See more

Cross
A cross-window is a rectangular window usually divided into four lights by a mullion and transom that form a Latin cross.
Eyebrow
The term eyebrow window is used in two ways: a curved top … See more

Windows can be a significant source of heat transfer. Therefore, insulated glazing units consist of two or more panes to reduce the transfer of … See more