Five Rooftop Fall Protection Mistakes We See All the Time
After enough roof walks and quote calls, you start seeing the same problems over and over. None of them are exotic. They're the kind of thing that happens when a roof gets "mostly" protected and nobody looks at it again. Here are the five we run into most.
1. Guarding the edges and forgetting the skylights
The perimeter gets guardrail and everyone feels good, but the skylights in the middle of the roof are wide open. Skylight falls are some of the worst ones because people sit or lean on domes without thinking, and older lenses get brittle in the sun. OSHA treats a skylight as a hole that needs a cover, guardrail, travel restraint or fall arrest. A screen rated for the load or a rail around the unit takes care of it for good.
2. Treating a warning line or short parapet like a guardrail
A warning line marks a boundary. It doesn't stop anybody, and in general industry it's only allowed for infrequent, temporary work set back from the edge. The same goes for a low parapet: if it's under 39 inches, it isn't guardrail height. Anyone working at that edge needs real rail or a harness.
3. Tying off to whatever's handy
Vent pipes, conduit, the gas line, a rooftop unit's sheet-metal housing, the guardrail itself. None of those are anchors. A fall arrest anchor has to hold 5,000 pounds per person or be designed as part of a system by a qualified person. If there's no rated anchor where the work is, that's the thing to fix before the next job, not something to improvise on the day.
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4. Drilling through the roof for a temporary job
Bolting posts through the membrane for a few months of work leaves holes that leak long after the job is over. Fixed posts also stay where they are when the work moves to another part of the roof. Non-penetrating rail on weighted bases, like Blue Water by Tractel's roof railing kits, sits on top of the roof, goes up without a roofer and can be moved as the work changes.
5. No inspections and no rescue plan
Guardrail sitting out in the weather for years drifts, rusts and loses pins. Harnesses and lanyards get thrown in a truck and never looked at. Then someone falls in a harness and the plan is to call 911. OSHA requires prompt rescue for anyone in fall arrest, and on a roof that usually means equipment and trained people on site.
Quick fixes
- Walk the roof and count skylights. Screen or rail every one
- Measure parapets. Anything under 39 inches gets rail or an anchor plan
- Mark rated anchors so nobody guesses
- Put guardrail and harness checks on a calendar with a name next to them
- Write a rescue plan and practice it once a year
Start with the one that costs the least
Skylight screens and a rescue plan are the cheapest items on this list and cover two of the most serious gaps. If budget is tight, do those first, then work your way to the edges.
Want us to look at your roof plan?
Send photos or a sketch of your roof and we'll point out gaps and price guardrail, skylight screens and anchors. Call 1-800-671-5080 or request a quote.
Shop fall protectionRequest 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.