CSLB C-39 Roofing ContractorSafety and RepairMedium
A roofing crew is performing a tear-off and reroof on a commercial building with multiple rooftop units (RTUs). To comply with Cal/OSHA requirements for fall protection around these openings, what is the most effective and commonly used method?
- AAssigning a dedicated safety monitor to observe workers near RTUs.
- BInstalling guardrail systems or covers for all RTU openings.
- CPlacing caution tape around each RTU opening to warn workers.
- DRequiring all workers to maintain a minimum 10-foot distance from RTU openings.
Show answer & explanationAnswer & explanation
Correct answer: B. Installing guardrail systems or covers for all RTU openings.
Cal/OSHA (and OSHA) requires that floor openings, including those around RTUs, be protected by covers or guardrail systems. These provide passive fall protection, which is preferred over administrative controls like warning tape or safety monitors.
Why the other options are wrong
- A. A safety monitor is an administrative control and is generally considered a less effective method than physical barriers for openings, typically used only when other methods are infeasible.
- C. Caution tape is a warning system, not a physical fall protection barrier, and is insufficient for openings that pose a fall hazard.
- D. Requiring a minimum distance is an administrative control that relies on worker compliance and is not as reliable or preferred as physical barriers for protecting against fall hazards from openings.
Rooftop Opening Fall Protection
Cal/OSHA requires guardrail systems or covers for all rooftop openings, including those around RTUs, to prevent falls.
- Openings pose significant fall hazards.
- Physical barriers (guardrails, covers) are preferred.
- Passive fall protection is more reliable than administrative controls.
Memory trick: Holes need guards or covers, so no one tumbles over.