Air duct cleaning in Rotterdam

Duct cleaning Rotterdam: from office floor to production hall

Rotterdam has a broad profile. The breakdown by sector shows that one type of job will not get you far.

Note: EN 15780 applies to ventilation systems, but not to industrial process installations. For the extraction of a machine or production line, look at occupational health and safety requirements and the manufacturer's instructions, not just at the ventilation standard.

Industrial extraction in Rotterdam: which requirements count?

In production, it is all about the employee. Article 4.5 of the Working Conditions Decree (Arbobesluit) requires that when contaminated air is extracted, sufficient clean air is supplied at the same time. An extract duct that is half blocked draws less air and the dust stays hanging in the hall.

• For inert dust, a limit value of 10 mg/m³ inhalable and 5 mg/m³ respirable applies (8 hour time weighted average).
• Volandis advises flexible local exhaust ventilation close to the work. The shorter the route, the less duct gets contaminated.
• In the United Kingdom, local exhaust ventilation must be thoroughly examined and tested at least every 14 months, with a record kept for 5 years. In the Netherlands that is not a duty, but it is a useful benchmark.

This is covered in more depth under air duct cleaning in industry.

Ducts larger than 600 mm: where is the limit of a brushing machine?

In halls and large air handling systems you come across ducts that are wider than a standard brush set can handle. An honest comparison helps.

For most ducts in offices, schools and shops, the DC4 duct cleaning machine for businesses does the job: the solid steel shaft keeps the brush centred and the automatic left to right system does the work. If you regularly work in ducts above 600 mm, discuss this with Lamers beforehand, so that you do not turn up at a Rotterdam site with the wrong set. The full range is listed under duct cleaning equipment for businesses.

Combustible dust and grease: safety comes first

Two risks make industrial and kitchen ducts different from office ducts. Fine wood dust and flour dust can cause a dust explosion; TNO mentions more than 60 g/m³ of fine dust as the limit above which an explosion is possible. In EX zones, a vacuum cleaner must be ATEX 114 certified.

Grease in an extract duct is highly flammable, Rabobank warns, and according to the bank most hospitality fires start in the kitchen. For Rotterdam commercial kitchens with a grill, fryer or wok, cleaning at least once a year is the minimum that KHN (Royal Dutch Hospitality Association) mentions. Also see commercial kitchen ventilation cleaning for the grease layer thicknesses that insurers use.

Step by step plan for an industrial cleaning project

1. Make an inventory: length, diameter, shape, bends and material. According to Eurovent, inspection openings should be no more than 10 metres apart or after at most two bends of 45 degrees or more.
2. Determine the contamination: dry dust, grease, flour or a mixture. That decides the brush and the method.
3. Choose the brush: soft, standard or the more aggressive Tynex, in sizes from 100 to 600 mm.
4. Seal off and extract: keep the work section under continuous negative pressure. With duct sealing and extraction for businesses you limit the work area.
5. Clean and check: record the result with photographs or a surface comparison.
6. Report: a short report per duct section makes the next round easier.

A tip for sites in the port area and on business parks: check access times and permits for working at height before the day itself. A job that is well prepared on paper is often finished in half the time on site.

Fictional example: a workshop with welding extraction and a canteen

Suppose a fictional metalworking company in Rotterdam has a workshop with local exhaust ventilation above the welding stations, an office section and a canteen with a small cooker hood. The facilities team wants to do the maintenance in house.

The welding extraction needs a sturdy brush and good removal of fine dust. The office can be done with a standard brush and negative pressure. The canteen is light kitchen work, but grease is still grease. In practice you therefore make three work packages, each with its own brush choice and its own interval. Anyone who puts that schedule on paper once prevents the kitchen duct from being left untouched for years without anyone noticing.

What goes into each work package

• Duct sections and openings, marked on a simple floor plan.
• Brush type and size per section.
• Extraction setup and which valves are sealed.
• Before and after photographs, filed with the date.

Ventilation duct cleaning in Rotterdam and neighbouring cities

With 21,842 hectares of land, Rotterdam is larger than Amsterdam. Projects are therefore further apart and you want a kit that is easy to move. If you also work in the region, see air duct cleaning in Den Haag, with 99,585 establishments, or air duct cleaning in Breda, with 28,900.

All municipalities with their figures are listed under ductwork cleaning per municipality. If you want to know which machine suits your Rotterdam projects, use duct cleaner quotation for cleaning contractors to request a callback.