Quartz dust, heavy bags and scaffolds: which safety rules cost a plastering business time and money?

If you employ staff, strict health and safety rules apply to your plastering business for quartz dust, lifting and working at height. For quartz dust the limit value is 0.075 milligrams per cubic metre over an 8-hour working day, and you keep a list of who is exposed to it. The Finishing Trades agreement bans packs heavier than 25 kilos on site. From a height of 2.5 metres fall protection is compulsory. The rules cost time, but a fine or a sick plasterer usually costs more.

About the amounts: fines are the standard amounts from the Labour Authority's policy rule, as at October 2026. The cost of time is a worked example, not a market price. Your own RI&E determines which measures you must take.

In this article

1. Which rules apply to quartz dust in plastering?
2. How harmful is quartz dust to construction workers?
3. Which measures against dust must you take?
4. How heavy may a bag or block be?
5. When must you use fall protection?
6. What does the agreement say about protective equipment and fines for employees?
7. What does a breach cost if the Labour Authority visits?
8. What do the measures cost in time?

Which rules apply to quartz dust in plastering?

The limit value for respirable quartz is 0.075 milligrams per cubic metre, measured over an 8-hour working day. Respirable dust is dust so fine that it reaches deep into the lungs. Quartz is on the list of carcinogenic substances and has no threshold: there is no safe lower limit (Arboportaal).

Because quartz is carcinogenic, you keep a list of employees who are or may be exposed to it, with the exposure they have had. Each employee may see their own data and get a copy (Working Conditions Decree, article 4.15). Your employees are also entitled to a periodic occupational health examination, a medical check through the company doctor (Arboportaal).

In plastering, dust arises mainly when removing old plaster layers, preparing the surface, emptying bags of mortar and mixing. In machine plastering it is mainly when filling the spraying machine (Arbocatalogus Afbouw). That health and safety catalogue applies to all employers and employees under the Finishing Trades agreement (Government Gazette 2026, 22163, article 96).

How harmful is quartz dust to construction workers?

Quartz dust can cause lasting damage to the lungs. In a Dutch study of 1,339 construction workers who mainly grind, hammer, drill, saw and polish, 10.2% of chest X-rays showed an abnormality consistent with dust lung disease. On 2.9% the abnormality was clearer. The group had worked with this dust for 19 years on average, and the more dust someone had inhaled in total, the more often the abnormality was found (Tjoe Nij and others, 2003).

Measurements show that the limit value is often exceeded. Among 116 Dutch construction workers, 62% of measurements were above the limit for quartz and 11% above the limit for respirable dust. Measures such as extraction were rarely used. Among concrete drillers and pointers who did use them, exposure was about 40% lower (van Deurssen and others, 2014).

Both studies are about construction workers who work on concrete and stone, such as bricklayers, concrete drillers, demolition workers and pointers, not about plasterers. Anyone who chips or grinds off old plaster does similar work, though. How much quartz your mortar contains is stated in the supplier's safety data sheet.

Which measures against dust must you take?

First prevent dust at the source, then extract it, and only as a last step a mask. The biggest reduction comes from local extraction and water together. Work wet where possible, use a vacuum cleaner instead of a broom, and limit compressed air or ban it (Arboportaal).

For plasterers, the catalogue lists specific measures (Arbocatalogus Afbouw):

• No quartz or quartz flour as an additive, and no plaster to which it has been added.
• Hold a bag about 2 cm under water while emptying it.
• For machine plastering, use a spraying machine with extraction, and mix in a wheeled mixing tub in a well-ventilated room.
• Clean up dust and debris with a good industrial vacuum cleaner, not with a broom.
• Provide a half mask with filter type P2 and an exhalation valve, plus gloves, overalls and a cap.

If your employee works with dust goggles, a dust hood helmet or a carbon mask, it is for no more than 60 minutes in a row. After that the employee does other work for a while (Government Gazette 2026, 11596, article 98(6)). So plan dusty work in blocks of an hour, alternated with other work.

How heavy may a bag or block be?

Under the Finishing Trades agreement, packs of gypsum, cement, granite grains, marble grains or other raw materials of more than 25 kilos may not be on site. You may not use gypsum blocks of more than 18 kilos, and wall elements of more than 18 kilos may not be handled by hand (Government Gazette 2026, 11596, article 94). You also may not require an employee to work on stilts.

The Working Conditions Act itself sets no maximum weight. Lifting belongs in your RI&E. The Labour Authority uses the NIOSH method, a calculation method for lifting work. Under ideal conditions it arrives at no more than 23 kilos, and less if lifting is frequent, far or low (Arboportaal).

Lifting also costs absence. In a study of 5,867 Dutch construction workers, manual materials handling was associated with absence of 2 weeks or longer. Of all factors studied, manual materials handling accounted for the largest share of absence: 20% (Alavinia and others, 2009). That is an association, not a proven cause. Aids such as a mixing tub with a mixer on a stand, a bag opener and materials close to the mixer reduce lifting (Arbocatalogus Afbouw).

When must you use fall protection?

In any case when someone can fall 2.5 metres or more, and also lower where there are openings in the floor or other risks. You then use a safe scaffold, staging, platform or working floor where possible, or a guard rail or railing. A railing counts if it protects up to at least 1 metre above the working surface (Working Conditions Decree, article 3.16).

A ladder is not a workplace, only a way to reach the workplace. From a height of 7.5 metres you may no longer use a ladder (Ondernemersplein). For walls and ceilings a plasterer therefore works on a platform, plasterer's step or mobile scaffold. In homes under construction, watch out for stairwells and open galleries that are not yet protected.

What does the agreement say about protective equipment and fines for employees?

You provide the personal protective equipment (PPE) listed in the catalogue, such as a mask, hearing protection and safety shoes. Until it is available, your employee may stop work (Government Gazette 2026, 11596, article 98(8)). When gypsum and aerated concrete blocks are machined, you provide dust masks with dust goggles or a dust hood helmet, and hearing protection (paragraph 4).

If your employee does not wear the PPE, a written warning comes first, then a net fine of €11 and €22 for each subsequent time. The fines go to reintegration, not to you. Repeatedly not wearing it can be grounds for dismissal. If someone falls ill or has an accident because the PPE was not worn, you do not have to continue paying wages (Government Gazette 2026, 11596, article 98(8)).

If your employee works outside 6.00 to 18.30, someone else must be on site who can call for help in case of an accident (Government Gazette 2026, 11596, article 98(7)). So working on alone in an empty house in the evening is not allowed.

What does a breach cost if the Labour Authority visits?

For a fall hazard without an accident, €1,800 with 1 to 4 employees and €3,600 with 5 to 9 employees. The Labour Authority uses a standard amount per offence and adjusts it to the size of the business. A business with fewer than 5 employees pays 10% of the standard amount, with 5 to 9 employees 20%. For a serious offence the amount is doubled (Policy rule on fines under health and safety legislation).

• Working at more than 2.5 metres without or with insufficient fall protection is a serious offence with a standard amount of €9,000. A working employer or self-employed person can also be fined for this.
• No written RI&E or no action plan: an immediate fine, standard amount €4,500.
• Not assessing at all which hazardous substances, such as quartz, your employees are exposed to: an immediate fine, standard amount €4,500.
• No list of employees exposed to carcinogenic substances: first a warning, then a fine with a standard amount of €340.

After an accident involving a hospital stay, permanent injury or death, the amount becomes three to five times higher. If you show that you had properly identified the risks and had a safe working method, the fine can be lower, by 25% per element (Policy rule on fines, article 1).

What do the measures cost in time?

Mainly time: setting up, extracting, vacuuming and switching tasks. A worked example, with an assumption: dust control costs a plasterer an extra quarter of an hour a day. With 209 productive working days a year, that is 52.25 hours. At €42.86 per productive hour, that costs €2,239 per plasterer per year.

That €42.86 is the cost of a productive hour of a plasterer in group 4b with 4 years' experience in 2026. It is the guaranteed wage of €24.31 per hour (Government Gazette 2026, 11596, annex 2) plus holiday pay, employer contributions, pension and the training fund, divided by 1,567.5 productive hours after holiday, rostered days off, public holidays and 5% sickness.

Set against that what not doing it can cost. A single fine for a fall hazard is already €1,800 for a small business. A sick plasterer receives 85% of the wage in 2026, for two years, with no waiting day (Government Gazette 2026, 11596, article 75). So include the time for dust and scaffolding in your price per m² or per hour, and state in your quote that the work is done according to the catalogue.

Record all risks and measures in your RI&E with an action plan. This is required from the first employee. Up to and including 25 employees you may use a sector RI&E, which then does not need external review (Netherlands Labour Authority).

Sources

• Arboportaal, Wat zegt de wet over kwartsstof? (what does the law say about quartz dust?), accessed 28 October 2026. arboportaal.nl
• Arboportaal, Maatregelen kwartsstof (measures against quartz dust), accessed 28 October 2026. arboportaal.nl
• Arbeidsomstandighedenbesluit (Working Conditions Decree), articles 3.16 and 4.15, in force from 1 August 2026. wetten.overheid.nl
• Decision of the Minister of Social Affairs and Employment of 14 April 2026 declaring provisions of the Finishing Trades collective agreement 2026-2027 generally binding, Government Gazette 2026, 11596, articles 75, 94 and 98 and annex 2. officielebekendmakingen.nl
• Decision of 15 July 2026 amending the declaration of general applicability of the Finishing Trades agreement, Government Gazette 2026, 22163, article 96. officielebekendmakingen.nl
• Arbocatalogus Afbouw, Stukadoor (traditioneel en mechanisch) (plasterer, traditional and machine), hazardous substances, accessed 28 October 2026. arbocatalogus-afbouw.nl
• Arbocatalogus Afbouw, Stukadoor, gevaarlijke stoffen, te nemen maatregelen (plasterer, hazardous substances, measures), accessed 28 October 2026. arbocatalogus-afbouw.nl
• Arbocatalogus Afbouw, Stukadoor, fysieke belasting, te nemen maatregelen (plasterer, physical strain, measures), accessed 28 October 2026. arbocatalogus-afbouw.nl
• Arboportaal, Wat zegt de wet over tillen en dragen? (what does the law say about lifting and carrying?), accessed 28 October 2026. arboportaal.nl
• Ondernemersplein, Werken op hoogte (working at height), accessed 28 October 2026. ondernemersplein.overheid.nl
• Netherlands Labour Authority, Risico-inventarisatie en -evaluatie en plan van aanpak (risk inventory and evaluation and action plan), accessed 28 October 2026. nlarbeidsinspectie.nl
• Beleidsregel boeteoplegging arbeidsomstandighedenwetgeving (policy rule on fines under health and safety legislation), article 1 and annex (tariff list), in force from 11 February 2025. wetten.overheid.nl
• Tjoe Nij, E., Burdorf, A., Parker, J., Attfield, M., van Duivenbooden, C. & Heederik, D. (2003). Radiographic abnormalities among construction workers exposed to quartz containing dust. Occupational and Environmental Medicine, 60(6), 410-417. doi.org
• van Deurssen, E., Pronk, A., Spaan, S., Goede, H., Tielemans, E., Heederik, D. & Meijster, T. (2014). Quartz and respirable dust in the Dutch construction industry: a baseline exposure assessment as part of a multidimensional intervention approach. Annals of Occupational Hygiene, 58(6), 724-738. doi.org
• Alavinia, S.M., van den Berg, T.I.J., van Duivenbooden, C., Elders, L.A.M. & Burdorf, A. (2009). Impact of work-related factors, lifestyle, and work ability on sickness absence among Dutch construction workers. Scandinavian Journal of Work, Environment & Health, 35(5), 325-333. doi.org