Warning Line Systems

For intermittent maintenance work away from the edge, a warning-line system marks a controlled boundary that keeps crews inside a safe zone without a full guardrail around the entire roof.

We supply weighted, non-penetrating warning-line stanchions and high-visibility lines that establish a designated work area set back from the edge per code. They install in minutes, leave no roof penetrations, and store flat between uses.

Warning lines are most effective as part of a managed access plan — we help define the boundary, combine it with guardrails or anchors at the edge where needed, and document the layout.

Key Capabilities

• Weighted, non-penetrating stanchions
• High-visibility warning-line flags & rope
• Fast install with no roof penetrations
• Designated-area boundary layout
• Combines with guardrails & anchors at the edge