OSHA 1926.501(b)(11): fall protection on steep roofs
Under 29 CFR 1926.501(b)(11), each employee on a steep roof with unprotected sides and edges 6 feet or more above lower levels must be protected by guardrail systems with toeboards, safety net systems, or personal fall arrest systems. Warning lines and safety monitors are not listed options on steep roofs.
Official text
(b)(11) Steep roofs. Each employee on a steep roof with unprotected sides and edges 6 feet (1.8 m) or more above lower levels shall be protected from falling by guardrail systems with toeboards, safety net systems, or personal fall arrest systems.Read the full section on eCFR
(j)(3) Toeboards shall be a minimum of 3 1/2 inches (9 cm) in vertical height from their top edge to the level of the walking/working surface. They shall have not more than 1/4 inch (0.6 cm) clearance above the walking/working surface. They shall be solid or have openings not over 1 inch (2.5 cm) in greatest dimension.Read the full section on eCFR
(b)(1) Top edge height of top rails, or equivalent guardrail system members, shall be 42 inches (1.1 m) plus or minus 3 inches (8 cm) above the walking/working level. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria of this paragraph. Note: When employees are using stilts, the top edge height of the top rail, or equivalent member, shall be increased an amount equal to the height of the stilts.Read the full section on eCFR
What it requires, in plain English
- Workers on a steep roof with unprotected sides and edges 6 feet (1.8 m) or more above lower levels need protection.
- The options are guardrail systems with toeboards, safety net systems, or personal fall arrest systems.
- Toeboards must be at least 3 1/2 inches high, sit no more than 1/4 inch above the surface, and be solid or have openings no larger than 1 inch.
- Guardrail top rails must be 42 inches, plus or minus 3 inches, above the walking/working level.
Where it shows up on site
- Shinglers on a pitched roof with roof jacks and planks but no tie-off
- Eave guardrail installed without a toeboard
- Harnesses worn but lanyards left unclipped while moving across the roof
Verify on site before you call it
A photo rarely shows every fact a standard depends on. Confirm these in person before treating the condition as a violation:
- Is the roof steep, as defined in 1926.500(b), rather than low-slope?
- Are the eaves or rakes 6 feet or more above the lower level?
- If guardrail is used, does it include a toeboard and meet the height requirement?
- Is each worker’s personal fall arrest system attached to a suitable anchorage?
Typical corrective actions
- Install roof anchors and require personal fall arrest for every worker on the roof surface.
- Where guardrail is used at the eave, add toeboards that meet 1926.502(j)(3).
- Keep workers off the roof until fall protection is in place, including during setup and tear-off.
Common questions
Can I use a warning line or safety monitor on a steep roof?
No. 1926.501(b)(11) lists only guardrail systems with toeboards, safety net systems, and personal fall arrest systems for steep roofs. Warning line and safety monitoring systems appear in the low-slope roof paragraph, 1926.501(b)(10).
Why do steep roof guardrails need toeboards?
The steep roof paragraph specifically requires guardrail systems with toeboards. Under 1926.502(j)(3), toeboards must be at least 3 1/2 inches tall with no more than 1/4 inch clearance above the surface.
Turn the observation into a notice
Record what the photo shows, confirm the on-site checks above, and identify the responsible company and due date. Use the fillable construction safety notice template or follow aworked example from observation to verified fix. Cirqify can draft the notice from your circled photo for you to review.
Related standards
This guide summarizes federal OSHA construction standards for general information. It is not legal advice. States with their own OSHA-approved plans may set different or additional requirements; see federal and state coverage.