The SafetyLink RetroLink Purlin-Mounted Roof Anchor is a permanent single-person anchor designed for fall arrest, rope access and abseiling applications on metal roof structures. The patented system installs through the roof sheeting directly into steel C or Z purlins without requiring access beneath the roof. Manufactured from 316 stainless steel, the anchor incorporates an energy-absorbing design that reduces loads transferred to both the user and the supporting structure.