Window
Windows allow the player and NPCs to see, shoot and enter into specific buildings. Sheet ropes allow the player to descend out a window to ground level. This feature was shown in a video uploaded by Chris Simpson. If the player has a strength level of 3, they may climb the sheet rope.
A window may be barricaded, giving it an additional 20 health.
Curtains can be made out of sheets and other cloth items and are used to cover windows. When covered, the window's line of sight is blocked from inside and outside. The curtains can only be opened and closed from the inside.
Barricades currently only stop the player and NPCs from seeing in or out of the building. Climbing through windows is an ability that was added in version 0.2.0a. Additional uses may be added with later updates.
Single Pane Window
Single Pane Window is currently the only window implemented within the game. It has 0.5 health.