Picture windows are intended for extra large area or openings in a home or office. As these windows bring in a lot of natural light you tend to not need harsh interior lighting giving the room a warmer feel. In addition, Picture windows are usually the largest type on window on any home. They still meet all energy efficiency or performance requirements. Our windows contain gasses like argon to block out sun while keeping in heat. Large picture windows make a beautiful accent to any room but only if their built correctly.