Abstract: An externally mounted, insect-proof screen curtain assembly for large door openings. The curtain is raised and lowered via draw pulley supported ropes, vertically threaded through rings sewn to the curtain material. Spaced apart horizontal rope containing hems and a bottom weight member maintain a flat exposed screen surface relative to slide track mounted side hems. Flexibly resilient side seal members mounted in wiping relation to the screen sides, along with a compressible horizontal bottom seal and a fixed head seal, make the assembly insect-proof.