According to one aspect, there is provided a curtain assembly including a curtain and a plurality of rails. The curtain can be used to cover a variety of openings. The plurality of rails can be attached to and disposed horizontally on the curtain to provide rigidity to the curtain when in an open position (covering the opening). The plurality of rails can be made of two main sections, a first and a second coupled to opposite sides of the curtain. The second section can be configured to provide the lateral stability to the curtain, permitting the first section to be made of almost any material. Typically both sections are metal. The first section can also include folded over portions which wrap around the edges of the curtain. The folded over portions provide for attachment and also insure no sharp edges exist on the exterior sides of the curtain. The plurality of rails can be bonded to the curtain using an adhesive. The curtain can include prepared bonding surface to receive the rails. Both can be spaced to minimize overlap between the plurality of rails when the curtain is in a recessed position (wound around a roller).