

Planning a Rooftop Fall Protection Program: Where to Start
Most roof fall protection problems we hear about aren't equipment problems. They're planning problems. Nobody walked the roof, nobody decided who's allowed up there, and the guardrail that did get bought covers one edge while the skylights sit wide open. Before you order anything, spend an afternoon on the groundwork below.
Walk the roof with a notepad
Go up with whoever maintains the building and mark every place someone could fall. On a typical commercial flat roof the list includes:
- Unprotected edges, including parapets that are shorter than guardrail height. OSHA's guardrail minimum is 39 inches, so a 24-inch parapet doesn't count as edge protection.
- Skylights and smoke vents. OSHA treats a skylight as a hole, and plenty of older domes won't hold a person who trips into one.
- Roof hatches and ladder openings.
- Rooftop units, exhaust fans and drains near the edge, where a tech ends up working with his back to the drop.
- Level changes and soft spots: low-to-high roof transitions, deteriorated decking, areas you already know leak.
Measure the distance from each piece of equipment to the nearest edge. On a low-slope roof that distance decides which protection options are allowed.
Figure out who goes up and how often
A roof that gets a filter change once a quarter is a different problem from one where an HVAC contractor is up every week. Write down who goes up (your maintenance people, outside contractors, inspectors), what they do there and how often. Under 29 CFR 1910.28(b)(13), how often the work happens and how far it is from the edge change what you're allowed to use, so this is more than paperwork.
Don't assume contractors bring their own protection. Ask before the job, and settle who supplies what.
Pick controls in the right order
Guardrail wins on most commercial roofs because it doesn't depend on anyone remembering to tie off. Non-penetrating guardrail on weighted bases, like Blue Water by Tractel's roof railing kits, goes up without drilling through the membrane, which keeps your roofer happy and your warranty conversation short.
Write down what "done" looks like
A workable roof plan covers
- A roof map showing every edge and opening and the protection at each one
- Who's allowed on the roof and how access is controlled (locked hatch, sign-in, permit)
- The equipment on the roof, who inspects it and how often
- Training records for everyone who goes up (1910.30)
- Weather rules: when wind, ice or lightning stops work
- A rescue plan for anyone working in fall arrest
Don't skip rescue
If anyone works in a personal fall arrest system, the employer has to provide for prompt rescue (1910.140(c)(21)). Calling 911 and waiting usually isn't a plan on a roof. Decide who responds, what they use to reach and bring down a suspended worker, and practice it at least once.
Where to start this week
Pick the roof that gets the most traffic. Walk it, photograph each edge and opening, and measure edge lengths and hatch sizes. Those numbers are exactly what we need to price guardrail, and they'll show you fast whether a few kits cover it or you need a mix of rail and anchors.
Send us your roof layout
Send edge lengths, hatch sizes and a few photos and we'll price guardrail, hatch rails and anchors for the whole roof. Call 1-800-671-5080 or email quotes@industrialsafety.com.
Shop guardrails & basesRequest a quoteThis article is for general information and does not replace OSHA regulations, consensus standards, manufacturer instructions or a qualified safety professional. Product prices shown are current web prices and may change; see each product page for current pricing.



