Bug Blocking Screened Mesh Curtain Doors significantly reduces heat from sun while allowing light into work areas. It is used for keeping pests, heat, intruders & flying debris out of the plant or warehouse and allows fresh air in. All seams are double lock stitched using mildew and rot resistant thread & all edges are completely finished. It is 100% woven vinyl coated, polyester mesh. 11 oz. per square yard weight. It has 17 vertical and 11 horizontal threads per inch. It has very strong and high tensile strength. It is tear, rot, UV and mildew resistant and has toggle switch control included on motorized door. The header mounting is included on all doors and is available in gray, black, blue, green or almond.