The unique construction and mounting design of the KeeGuard® Skylight Screen attaches without penetration of the roof or piercing the skylight frame,maintaining the integrity of both surfaces.Skylight Screens are available in galvanized or stainless steel for Curb Style skylight installations, Standing Seam metal roof skylights, and for Rib/Corrugated metal roof skylights. KeeGuard® Skylight Screens exceed OSHA standards (able to withstand a load of at least 200 pounds applied perpendicularly at any one area on the screen).