Yes, freestanding roof guardrail systems use non-penetrative counterweights to provide full fall protection without puncturing or damaging the roof membrane.
This system is engineered specifically for flat roofs (up to a 3° pitch) finished in single-ply, felt, asphalt, or bitumen where drilling would compromise water-tight integrity. It utilizes heavy, recycled rubber counterweights (approx. 25kg each) split across cantilever arms. The system relies entirely on weight distribution and surface friction to meet statutory load testing requirements, completely eliminating the risk of future water leaks.