The SC2500 Mastershade® is an is an open roll exterior screen that is installed utilizing two end brackets and an optional hood. The system is available motorized or manual with standard tracks, zipper tracks, or cables. The screen can be rolled up and down as needed. The fabric hem bar runs on the cable or track by means of gravity. When the shade is retracted the fabric is rolled up on a 78 mm open roller tube. A weighted aluminum hem bar in the fabric fold / pocket keeps the fabric taut.