CSLB C-46 Solar ContractorSafetyMedium
A solar technician is working on a residential rooftop where the slope is 7:12. The roof surface is dry, and the technician is wearing appropriate non-slip footwear. What is the minimum fall protection requirement according to Cal/OSHA for this scenario?
- AA safety monitor system is sufficient if no other fall protection is feasible.
- BFall protection, such as a guardrail system or personal fall arrest system, is required.
- CNo fall protection is required due to the moderate slope and dry conditions.
- DOnly a warning line system is needed to delineate the work area.
Show answer & explanationAnswer & explanation
Correct answer: B. Fall protection, such as a guardrail system or personal fall arrest system, is required.
Cal/OSHA requires fall protection for employees on roofs with a slope greater than 4:12. A 7:12 slope exceeds this threshold, necessitating the use of positive fall protection measures.
Why the other options are wrong
- A. A safety monitor system alone is generally not permitted on roofs with slopes greater than 4:12 unless very specific conditions are met, and positive fall protection is preferred.
- C. This is incorrect; a 7:12 slope requires fall protection.
- D. A warning line system is typically used in conjunction with other fall protection or for flat/low-slope roofs, not as a standalone solution for a 7:12 slope.
Cal/OSHA Roof Fall Protection Slope
Cal/OSHA requires fall protection for employees working on roofs with a slope greater than 4:12 (vertical to horizontal ratio).
- Slope greater than 4:12 requires fall protection.
- Guardrails, safety nets, or personal fall arrest systems are common methods.
- Applies to all roofing work where fall hazards exist.
Memory trick: Four-to-Twelve: Fall Protection is the Rule to Thrive.