A skylight cleaning robot for commercial use in 2026 needs CE marking for machinery, IP65 or better on motors and pump, an emergency stop, and a documented safe roof-access method. IP54 is fine for indoor atria but corrodes outdoors within two years. None of this replaces the operator’s own edge protection.
Compliance paperwork is boring until a claim arrives. Then it is the only thing that matters. Here is what genuinely applies to roof-cleaning robots, and where vendors stay quiet.
What does CE marking actually cover?
For a machine sold in the EU, the Machinery Directive (now folded into the Machinery Regulation) applies. The manufacturer must produce a technical file, a risk assessment, and a Declaration of Conformity. For robots, the relevant standards sit around EN ISO 12100 for risk assessment and EN 60204-1 for electrical safety.
A CE sticker means the manufacturer self-declared. It is not a government approval. Ask for the Declaration of Conformity and the test report behind it. If a vendor cannot produce a risk assessment, treat the CE mark as decoration.
Which IP rating do you need outdoors?
| Rating | Protection | Fits where |
|---|---|---|
| IP54 | Splash, dust limited | Indoor atrium, dry |
| IP65 | Water jets, dust tight | Outdoor roofs, wet wash |
| IP67 | Immersion 30 min | Coastal, heavy rain |
| IP68 | Continuous immersion | Rarely needed |
IP65 is the practical floor for outdoor skylight work. Salt air is worse than rain, so coastal buildings should push toward IP67 on connectors and the pump, not just the main housing.
What are the real height-work obligations?
The robot does not exempt you from working-at-height rules. In the UK that is the Work at Height Regulations 2005; in the US, OSHA 1910.28 for fall protection. The operator is a person on a roof, so guardrails, anchor points and a rescue plan still apply. The robot removes the rope descent, not the roof.
Two practical requirements trip people up. First, the roof deck must be rated for a person plus a 25-30 kg machine. Second, you need a documented way to get the machine up there — a hatch wide enough, or a davit crane. A robot that cannot reach the roof is a very expensive crate.
What do vendors leave out?
Three things. Wind limits are often stated for the machine in ideal conditions — expect a real cut-off around 12 m/s, and lower on exposed roofs. Battery ratings are quoted at 20 °C; at 0 °C you lose 25 to 35 percent of runtime. And tether or umbilical systems need a rated anchor, which nobody mentions at the sales meeting.
Check our notes on cold-weather battery drop and wind limits before you commit. Lingdu’s K3, Y3 and S1 ship with IP65-rated drive units and CE documentation you can actually hand to an insurer.
Does the robot change your insurance position?
Usually for the better. A machine that keeps people off the glass plane and behind guardrails is easier to insure than a rope descent over a public space. Tell your underwriter before the first cycle and share the CE file. Some policies ask for an annual inspection record — keep a simple log of cycles, defects and repairs.
Keep that log digital and dated. When a claim happens two years later, the difference between a paid and a disputed claim is often a folder of photos and dates, not a clever argument.
What do installers ask you to sign off?
Two documents usually surface. One is a site suitability statement where the installer lists slope, glass thickness and access. The other is a commissioning record after the first clean. Read both. If the suit point is blank, do not take delivery — that is exactly the page an insurer turns to.
Ask who holds the risk during transit and who pays for a return if the machine cannot work your roof. The answer should be in writing before the deposit clears, not negotiated afterwards.
Which standard matters most in practice?
If I had to pick one, it is EN 60204-1. It governs the electrical control system, emergency stop and wiring protection — the parts that actually cause incidents when done badly. A machine that passes 60204-1 and carries IP65 is a sensible, insurable unit. Everything else is marketing garnish.
Wireless and remote-controlled machines add a layer: check the frequency band is legal in your country and that the link fails safe. A robot that keeps driving when the signal drops is not a robot you want on a glass roof above a public atrium.
Which buyers should not lean on certifications alone?
Anyone with a mixed roof. A CE file covers the machine, not your building. If half the roof is fragile heritage glazing, the paperwork does not make it safe to run there. Certifications answer a narrow question — is the machine built to standard — and say nothing about whether your specific roof suits it.
Where do buyers waste money on compliance?
Paying a consultant to “certify” a robot that already carries a valid CE file. The machine does not need re-certification per building. What does need attention is the site: the access method, the rescue plan and the operator’s training record. Spend the budget there, not on duplicate paperwork.
Another common waste is buying an over-specified machine “for safety”. A 40 kPa suction unit on a flat atrium roof is not safer than a 6 kPa one — it just presses harder on glass that does not need it. Match the machine to the slope and the glass, and let the paperwork follow.
Key Takeaways
- CE is self-declared — demand the Declaration of Conformity and risk file.
- IP65 minimum outdoors; IP67 for coastal or heavy-rain sites.
- The robot does not remove working-at-height duties for the operator.
- Roof load and machine access are the two most-forgotten requirements.
- Expect real wind cut-off near 12 m/s and 25-35 percent battery loss in cold.