For what it's worth, I thought my fabs were safe across the room from a window, in a closet in hanging shoe/sweater bags and with the doors left off. When I packed up to leave, I noticed many of my fabrics had faded bits where the outside folds were. This room didn't even get morning or evening sun-and no direct sun. It was simply the light that caused the damage. Maye if I regularly unfolded and re-folded them I could have avoided it, but now I have lots of pieces with faded stripes thru them! I would simply put tie-backs on, or maybe add the door with a design wall on one side and make it so it slides sideways so you can have more flexibility with it.