In most finished homes there will be some kind of window treatment. Window treatments can be a curtain,a blind a shade or even shutters.The purpose is the same in all four types which is :
Privacy :- A window treatment can block views into the home either partially or fully allowing for privacy. Insulation :- A window treatment can provide an additional layer of insulation in a home. Windows account for up to 50 % of hot and cool air loss in a home.
Light Control :- The type of window treatment you choose can determine the amount of natural light that is allowed into a room.