Functional Drapes
In terms of function, drapes and window treatments are typically used to control light, block out the cold and/or heat, provide privacy, and help mute sounds and prevent echoing).
The most common types of function drapes are:
  • Pinch pleat drapery (also known as draw drapery) – these types of drapes open as a pair or draw to one side or the other.
  • Roman shades – these types of drapes open up and down.

Non-Functional Drapes
In terms of form, drapes and window treatments can be used to add personality to a room, to frame a window, to focus your eye on the window, to make rooms seem taller or shorter, to provide accents, to add warmth and color, to dress a room up or down, and to compensate for windows that aren’t the same height.
The most common types of form drapes are:
  • Valances
  • Panels
  • Roman shades
  • Cornices
  • Swags/cascades