Roof Sheathing Fall Protection in California

At what height does California require fall protection for roof sheathing?

Six feet. Under 8 CCR 1716.2(g)(1), employees installing starter board, roof sheathing and fascia board must be protected from falls when 6 feet or more above the surrounding grade or floor level below.

The accepted methods are named in the subsection: scaffolding, safety nets, guardrails, personal fall protection systems, or a fall protection plan with safety monitors and controlled access zones, and that last one only where the employer demonstrates that conventional methods are infeasible.

Does the 20 foot roof rule apply to roof sheathing?

No, and this is the single most common mistake made about this work.

The 20 foot trigger lives in 8 CCR 1730, Roof Hazards. Two separate provisions keep it away from a crew sheathing a deck.

First, section 1730(a) states that the section "does not apply to residential-type roofing activities as defined in Section 1731." Second, and more decisive, 8 CCR 1731 defines residential type roofing activities as roofing, re-roofing and roof removal work plus the loading and installation of roofing materials, and then says expressly that it "does not include the construction of the roof deck."

Sheathing a roof is constructing the roof deck. It is framing work, it is named in the definition of residential type framing activities at 1716.2(b)(7), and it has its own paragraph at 1716.2(g)(1). The roofing sections never reach it.

So a crew laying sheathing at 12 feet is not inside a 20 foot allowance. There is no 20 foot allowance available to them at all.

What counts as starter board and fascia board?

Both are defined inside the section, which removes the argument.

  • Starter board is "the board-type sheathing material installed at eaves and gable ends in the plane of the sheathing and visible from the underside" (1716.2(b)(10)).
  • Fascia board is "the exterior trim board at the perimeter of the roof" (1716.2(b)(3)).
  • Sheathing is "the structural panel covering fastened onto studs, floor joists, and/or rafters/trusses" (1716.2(b)(9)).

All three are perimeter tasks by definition. Eaves, gable ends and the roof perimeter are where the work is, which is why the trigger height matters more here than almost anywhere else on a frame.

What changed for this work on 1 July 2025?

Subsection (g)(1) was amended and the carve outs that used to follow it were repealed. The regulation history for the 26 November 2024 filing records the amendment of (g)(1) together with the repeal of subsections (g)(1)(A) through (g)(2), and the renumbering and amendment of what is now (g)(2).

The practical effect is that the paragraph reads as a flat 6 foot requirement with a closed list of methods, and the conditional relief that used to sit under it is gone. If you are working from a printed copy of the section that shows lettered exceptions under (g)(1), that copy is out of date.

The wider status of the amendment, and what is being drafted next, is on our 1716.2 update status page.

What if the crew is doing roofing rather than sheathing?

Then section 1731 governs, and the trigger is still low.

  • Roof slopes 0:12 up to and including 7:12: protection is required where the employee fall distance is 6 feet or more above the grade or level below (1731(c)(1)).
  • Roof slopes greater than 7:12: protection is required by the same methods regardless of height (1731(c)(2)).

Section 1731 was amended in the same 26 November 2024 filing, operative on the same 1 July 2025 date. Its scope now runs through 1716.2: residential type roofing work covers single family homes, townhouses, duplexes "and other structures covered by Section 1716.2." Because 1716.2 reaches light commercial wood frame construction, so does 1731.

Section 1731(e) also settles how the height is measured. It is the vertical distance from the walking or working surface to the ground or level below, and the height of parapets is not counted.

Is the 20 foot trigger in section 1730 changing?

It is proposed to become 6 feet, but it has not changed. The Fall Protection in Construction Phase 2 discussion draft would replace 20 feet with 6 feet at 1730(b)(1), (c), (e) and (f), and would rewrite 1730(a) so that it points to 1731 rather than excluding it.

That draft is at the advisory committee stage. No notice of rulemaking had been published for it as of 9 September 2026. Treat it as a direction of travel, not a requirement.

What does compliance look like in practice at the eave?

The regulation names the methods and does not rank them. Which one fits depends on the structure, and that determination belongs to your own competent person on your own job.

Two provisions inside 1716.2 are worth reading together with (g)(1), because they describe scaffolding used at exactly this line. Subsection (i)(3) sets the geometry for a scaffold used as an edge protection platform, and (i)(4)(C) requires guard railings to extend not less than 42 inches vertically above the eaves where the outboard edge of the platform extends less than 12 inches horizontally beyond them. Those requirements are covered on our edge protection platform page.

Related guides

Primary sources

By Matthew Horovitz, M Squared Safety Solutions, Inc., 981 Calle Negocio Suite 200, San Clemente, CA 92673, 949-954-6581. Published 9 September 2026. Every regulatory statement on this page was read against the operative Title 8 text and the Occupational Safety and Health Standards Board rulemaking file on that date. This page describes what the regulations say. Whether a given provision is satisfied on a particular job is a determination for that employer and its own competent person.