Specifications: Skylight Screens shall be Model A-SM1 FALLGUARDĒ Skylight Screens as manufactured by Plasteco, Inc., Houston, Texas (1-800-231-6117) (Fax 877-231-6117). The FALLGUARDĒ Skylight Screen rail shall be fastened to the vertical leg of the retaining frame of the skylight to be retrofitted with special stainless steel #12 hex washer head self-drilling screw. The FALLGUARDĒ Skylight Screen shall be 3" x 4" welded steel wire mesh having a minimum transverse (or in the case of a square skylight the curved wire) diameter of .195". The screen shall be hot dipped galvanized to meet ASTM A123 specifications. The FALLGUARDĒ rails shall be 6061-T6 extruded aluminum with 2" wide notches on 4" centers. After the FALLGUARDĒ Skylight Screen is installed, a series of 2" wide by 1/2" tall scuppers are created. Where the FALLGUARDĒ Skylight Screen is longer than the FALLGUARDĒ rail, a continuous 1/2" opening is created. The exposed ends of the FALLGUARDĒ Skylight Screen shall be covered with a outdoor PVC extrusion.