Window is a minor entity in DOORS that randomly appears in the Lobby and Hotel area, staring through windows. It can be killed by shooting it with any weapon; killing it will not affect the player’s progress, but may disrupt the game if players are too close or distracted by it. It is also one of the few entities that can indirectly kill players by distracting them from any nearby threats.

A unit of glass and a frame that holds sash, or sliding parts, that open and close. Also known as a window assembly or IGU.

An opening in a wall for the naturfönster of a window, door or skylight. Often called a rough opening.

Authentic divided lites (ADLs) are single or insulated glass panes individually glazed between muntin bars. Grilles are wood muntins fastened to the interior of the sash that emulate ADLs.

Windows to the Soul: Choosing the Perfect Window Door for Your Home

Mullion – A major vertical or horizontal member between window units, sliding windows or patio doors that laps over the conventional stud construction and is usually finished with casing on both sides.

A rounded top appearance that includes full round tops, separated round tops, arches and ellipticals. Also used to describe a round window that is mulled to the top of another window or door.

A type of glass that reflects and transmits only part of the solar spectrum – most of the visible light – so it doesn’t add heat to the home. It’s a great choice for energy efficiency, as well as for providing privacy and enhancing aesthetics.