For a skylight cleaning robot in 2026, CE marking confirms the machine meets EU machinery and electrical safety rules, while an IP rating tells you how well it survives water and dust. Buyers should demand both, plus a declaration of conformity and a maintenance schedule, before signing delivery.
Compliance paperwork is boring until an insurer asks for it after an incident. On glass roofs the two questions that matter are electrical safety in wet conditions and mechanical safety if the machine slips, because both sit at the edge of what a standard cleaning risk assessment covers.
What does CE marking actually cover?
CE is not a quality badge. It is the manufacturer’s declaration that the machine meets the EU Machinery Directive and related electrical standards. For a cleaning robot that means guarding on moving parts, safe stop functions and documented electrical design. A CE mark without the supporting declaration of conformity is just a logo, and it will not satisfy an auditor.
Note that a machine can be CE marked and still fail your site. CE covers the product, not your roof. The structural question — can the glazing take the load — is yours to answer separately, and no certificate replaces that check.
Which IP rating do you need on a glass roof?
Cleaning machines work wet, so IP65 is the sensible floor for 2026. The first digit covers dust, the second water. IP65 means dust-tight and protected against water jets. On an outdoor glass roof, a machine rated IP54 will suffer over a wet season; water finds the electronics within months, and moisture damage is usually excluded from warranty.
| Rating | Dust | Water | Verdict for glass roofs |
|---|---|---|---|
| IP54 | Limited | Splash | Marginal outdoors |
| IP65 | Dust-tight | Water jets | Suitable baseline |
| IP66+ | Dust-tight | Heavy jets | Exposed or coastal roofs |
What documentation should ship with the machine?
- EU declaration of conformity, signed and dated.
- Electrical schematics and a safe-stop description.
- IP test certificate from an accredited lab, not a self-declaration.
- A maintenance schedule with torque and inspection intervals.
- Operator training record after handover.
Where do buyer checks usually fail?
Two places. First, teams accept a brochure IP claim with no certificate. Second, they skip the training record, then find that no one on site can safely recover a stalled machine from a roof. Both gaps surface at the worst moment. Ask for the certificate number and the trainer’s sign-off; if the supplier hesitates, that is information.
One more trap: a machine certified to an older standard edition. Standards move, and an insurer in 2026 may ask whether the declaration references the current edition. Check the date on the document rather than the version number in the brochure.
Who can skip the heavy paperwork?
A private owner cleaning a single residential skylight twice a year does not need a compliance file. A facility managing a 3,000 m² commercial glass roof does, because insurers, auditors and safety officers will all ask. The heavier the building, the more the paperwork pays for itself, and the more expensive it is to discover a gap after an incident. When specifying a machine, ask for the conformity and IP documents with the quote. The team can supply machine documentation and a site fit assessment via the contact page.
Do you need a rescue plan for the machine, not just the operator?
Yes, and most buyers forget it. If a robot stalls mid-roof, someone has to retrieve it without climbing on unsafe glazing. A documented recovery method — a pole, a tether or a controlled return-to-dock — belongs in the handover pack. Sites that skip this find out the hard way during the first fault.
How do electrical and EMC standards apply?
Beyond machinery safety, machines with radio control or wireless links must meet EMC requirements so they do not interfere with other systems. On an airport or hospital roof that is not theoretical: interference with site radios or sensors is a real risk. Ask whether the controller is certified for the site’s radio environment.
What changes at handover?
A proper handover includes a signed training record, a maintenance schedule, the conformity file and a first service visit date. Without a training record, the machine’s safety case falls apart the first time a new operator takes over. Put an expiry on the training and refresh it when staff change.
What about battery and charging safety?
Lithium packs on a roof need a charging plan, not just a plug. Ask where the charger will sit, whether it is sheltered, and what happens in a wet store room. A charger exposed to rain is an electrical risk and usually voids the pack warranty. Keep charging indoors or in a sealed roof enclosure.
How do you verify a supplier’s certificate is genuine?
Ask for the accredited lab’s name and certificate number, then check it against the lab’s own register. Some suppliers circulate scanned documents from older models. A five-minute check on the issuing body’s site settles it. If the number is missing or the lab cannot be found, treat the claim as unverified.
How do you keep the file current over five years?
Set a calendar reminder to review the conformity documents each year. Standards are revised, and a declaration that referenced the 2018 edition may not satisfy an insurer in 2028. Keep the file with the machine’s maintenance log so everything is in one place at audit time.
Key Takeaways
- CE is a declaration of conformity, not a quality mark — demand the signed document.
- Treat IP65 as the baseline for wet glass roof work; IP54 fails outdoors over time.
- Ask for an accredited IP test certificate, not a brochure claim.
- Commercial sites need a compliance file; a single home skylight does not.