Abstract: A panel (10) for protecting a portion of a structure such as a window (11) includes a frame member (13) made up of four channel members (16-19) interconnected by corner members (20). One end of each channel member (16-19) includes an opening to receive an edge of a sheet (33) of flexible material. The sheet (33) is provided with a thickened area (34) near each edge thereof. A fabric locking and stretching member (15) closes the opening in each channel member (16-19) and engages the thickened area (34) of the fabric sheet (33) to stretch the sheet (33) within the frame member (13).

Abstract: A panel (10) for protecting a portion of a structure such as a window (11) includes a frame member (13) made up of four channel members (16-19) interconnected by corner members (20). One end of each channel member (16-19) includes an opening to receive an edge of a sheet (33) of flexible material. The sheet (33) is provided with a thickened area (34) near each edge thereof. A fabric locking and stretching member (15) closes the opening in each channel member (16-19) and engages the thickened area (34) of the fabric sheet (33) to stretch the sheet (33) within the frame member (13).

Abstract: A window including a frame, a side jamb liner, a sash, and a reinforcing member. The reinforcing member includes a base portion mounted to a top surface of a check rail of the sash and an upright portion extending vertically from the base portion. The upright portion engages the rib of the side jamb liner when the side jamb liner is in a first position. The side jamb liner can be laterally displaced to a second position, where the rib will not engage the upright portion. The reinforcing member is made of a unitary piece of material.