A compliant skylight cleaning robot in 2026 should carry a CE declaration, a minimum IP65 rating for wet cleaning, and documentation covering battery transport and lifting. Missing paperwork is a real procurement risk, not a formality.
Compliance is where cheap machines fall apart. The robot may work fine for a year, then a site audit or an insurance review asks for the declaration of conformity and nobody can produce it. That is when a bargain turns expensive.
What does CE marking actually cover?
CE is not a single test. For a cleaning robot it will typically touch the Machinery Directive, the Low Voltage Directive for the charging system, the EMC Directive for the electronics, and increasingly radio equipment rules if it uses wireless control. The manufacturer signs a declaration listing these, backed by technical files.
Ask for the declaration of conformity by name, and check it names the actual model you are buying. A declaration for a different model is common in grey-market supply and worth nothing.
Which IP rating do you need?
IP65 is the sensible floor for wet cleaning. The first digit is solids, the second is water. IP65 means dust-tight and protected against water jets. Some machines claim IP54, which resists splashes but not jets, and that is often not enough when a brush throws water sideways.
| Rating | Meaning | Fit for wet skylight work |
|---|---|---|
| IP54 | Splash resistant | Marginal |
| IP65 | Dust-tight, jet resistant | Good baseline |
| IP67 | Immersion brief | Above need, higher cost |
What height-access rules apply?
Rules vary by country, but the theme is consistent. Any work at height, including placing and recovering a robot, needs a risk assessment, a safe means of access, and training. In many jurisdictions, general industry rules trigger above roughly 1.8 to 2 metres, which most skylights exceed.
The robot reduces exposure but does not remove the height task. Someone still climbs to position it, unless you install a dock or a lift. Factor that into the compliance plan from the start.
What documents should you demand before purchase?
- CE declaration of conformity naming your exact model
- IP rating test evidence, not just a claim
- Battery transport and disposal documentation for lithium packs
- Operator manual in your local language
- Spare parts list with lead times
That last item matters more than people expect. A compliant machine you cannot get parts for becomes non-compliant scrap once it stops working.
Where do buyers get tripped up?
Two places. First, assuming CE on the charger covers the robot, when in fact only the power supply was assessed. Second, ignoring the battery. Lithium packs shipped without correct documentation can be refused at customs or at the site gate, which stalls installation for weeks.
Documentation is not the exciting part of a purchase. It is, however, the part that keeps the machine running and the insurance valid. Treat it as a delivery condition, not a nice-to-have.
When should parts be replaced rather than cleaned?
Cleaning a stiffening skirt buys a week, not a season. Once the rubber loses elasticity, it will not seal again no matter how you wash it. The same applies to a brush missing a third of its bristles. Replace on the schedule, not on the failure.
How do you spot a failing part early?
Three signals. Suction drops faster than it used to, streaks appear in the same place every pass, or water spots show after a clean. Each one points at a specific part, and each is cheaper to fix before it strands the robot mid-roof.
What should live in the spares box?
- One spare suction skirt
- One spare brush set
- Two spare filter cartridges
- One spare battery
- The basic hand tools to swap them
How does cleaning frequency affect maintenance?
The harder the cleaning, the faster the wear. A roof cleaned monthly with light passes wears brushes and skirts more slowly than the same roof scrubbed heavily twice a year. Frequent light cleaning is kinder to the machine and cheaper on parts, even though it uses more water over a year.
This is the counter-intuitive part of robot ownership. The schedule that looks heavier in visits is often lighter on the parts bill.
Does the roof surface shorten part life?
Yes, and it is worth pricing in. Smooth glass is gentle on brushes and skirts. Textured, coated or mineral-stained glass wears them faster, sometimes cutting brush life in half. If your roof is gritty or scaled, build the shorter replacement interval into the budget from the first year, not the third.
How do you know when to replace rather than repair?
If a part costs less than an hour of downtime, replace it. This rule covers skirts, brushes and filters, and it saves owners from trying to squeeze extra life out of cheap items while the robot sits idle. The expensive parts, motors and the main board, are the ones worth repairing, and only when the parts supply makes repair viable.
One last point on compliance. Rules tighten over time, and a machine that satisfies today’s requirements may need extra documentation in two years. Keep the technical file, the declarations and the service records together in one place. That folder is what turns a routine audit into a ten minute conversation instead of a two week scramble.
Key Takeaways
- CE covers machinery, low voltage, EMC and often radio rules, not one test.
- IP65 is the practical minimum; IP54 struggles with thrown water.
- Height rules commonly trigger above 1.8-2 metres, covering robot placement.
- Demand the CE declaration by model name and IP test evidence.
- Battery transport paperwork is a frequent, avoidable customs blocker.
Need the compliance pack for a specific model? Ask us for the documentation.