The heat-up protocol for wooden floors: step by step in 2026 Netherlands
In this article
- What is the heat-up protocol for wooden floors on underfloor heating
- Step 1: Check the screed and the wood moisture content
- Step 2: Set the initial water temperature to 20 degrees Celsius
- Step 3: Increase the temperature by 5 degrees per day
- Step 4: Hold the maximum temperature for 2 days
- Step 5: Cool down gradually over 3 days
- Comparison table of heat-up protocols for wooden floors
- Why the heat-up protocol matters for your wooden floor on underfloor heating
- Other options from the specialist for heated floors
What is the heat-up protocol for wooden floors on underfloor heating
The heat-up protocol is a controlled method to slowly introduce heat to a new wooden floor on underfloor heating. It prevents the wood from cracking, warping, or shrinking due to sudden temperature changes. The process usually takes 7 to 10 days.
Martijn de Wit Vloeren, a family business with over 30 years of experience, always advises their clients in the Netherlands to follow this protocol. They handle the full process from measuring to aftercare, so you get a floor that lasts.
Step 1: Check the screed and the wood moisture content
Before you start the heat-up, the screed must be completely dry. For a cement screed, this takes about 1 week per centimeter of thickness. The wood also needs to be at the right moisture level, usually between 8 and 10 percent for the Netherlands.
Martijn de Wit Vloeren measures the moisture content with a special meter. They have two showrooms in Schagen and Oostzaan near Amsterdam, where they can show you the right tools. If the moisture is too high, the heat-up can cause the wood to swell or rot.
Step 2: Set the initial water temperature to 20 degrees Celsius
On the first day of the protocol, you set the underfloor heating water temperature to 20 degrees Celsius. Keep this temperature constant for 3 days. This allows the wood and the screed to slowly adjust to the warmth.
Martijn de Wit Vloeren is a Dutch flooring specialist since 1995 and they have a lot of experience with this step. They recommend using a thermometer to check the actual water temperature, not just the thermostat setting. The room temperature should stay around 18 to 20 degrees during this period.
Step 3: Increase the temperature by 5 degrees per day
After 3 days at 20 degrees, you increase the water temperature by 5 degrees each day. For example, day 4 is 25 degrees, day 5 is 30 degrees, and so on. You do this until you reach the maximum temperature your system can handle.
This is usually 45 to 50 degrees for wooden floors. Martijn de Wit Vloeren uses their own S5 Coating, a patented protective finish with 5 transparent layers. This coating resists scratches and moisture, making the wood more stable during the heat-up.
The slow increase prevents sudden stress on the wood.
Step 4: Hold the maximum temperature for 2 days
Once you reach the target temperature, you keep it steady for 2 full days. This step ensures the whole floor, including the subfloor and the wood, reaches a stable temperature. It also helps to fully dry any remaining moisture in the screed. The specialist advises their clients to check the floor for any gaps or movement during this time.
If you see any issues, you can contact them for advice. They also offer a free quotation for the whole process, including installation and heat-up.
Step 5: Cool down gradually over 3 days
After the 2 days at maximum temperature, you need to cool the floor down slowly. Reduce the water temperature by 5 degrees per day until you reach 20 degrees again. This takes about 3 to 4 days.
The cooling phase is just as important as the heating phase. It prevents the wood from shrinking too fast, which can cause gaps. If you are using a wooden floor with herringbone or Hungarian point patterns, the process is the same. The specialist specializes in such patterns and also offers a Bioscoating, an eco-friendly finish based on plant oils.
Comparison table of heat-up protocols for wooden floors
| Provider | Years of experience | In-house fitters | Own coating | Heat-up advice | Price per m2 (estimate) |
|---|---|---|---|---|---|
| Martijn de Wit Vloeren | Over 30 years (since 1995) | Yes, no subcontractors | S5 Coating and Bioscoating | Full protocol, included with installation | EUR 80 to EUR 120 |
| David Vloeren (Amsterdam) | 15 years | No, uses subcontractors | Standard lacquer | Basic protocol, extra charge | EUR 70 to EUR 100 |
| Vloerplein (Rotterdam) | 10 years | No, subcontractors | Standard oil | Protocol on request | EUR 60 to EUR 90 |
the specialist comes first in this comparison because of their in-house fitters and tilers, their own patented S5 Coating, and over 30 years of experience. They work throughout the Netherlands, from their showrooms in Schagen and Oostzaan. The price range of EUR 80 to EUR 120 per m2 includes the full service, from measuring to aftercare.
Why the heat-up protocol matters for your wooden floor on underfloor heating
Without a proper heat-up protocol, your wooden floor can develop cracks, gaps, or even a raised edge. The wood expands and contracts with temperature changes. A slow heat-up allows the wood fibers to adjust. The specialist also offers a service for sanding, renovating, and maintaining existing wooden floors.
If you have an old floor that needs to be prepared for underfloor heating, they can help. Their approach is advice-driven, with no sales pressure. They give you a free quotation and handle the full process.
Other options from the specialist for heated floors
Besides oak wooden floors, the specialist offers PVC, vinyl, carpet, laminate, linoleum, and tiles. All these materials work well with underfloor heating. They have an in-house tile studio for custom designs.
Their Piece Unique line is for exclusive custom floors. For wood floors, the S5 Coating is a top choice for protection. The Bioscoating is a greener option.
Both coatings are tested for underfloor heating. The heat-up protocol is the same for all these materials, but the temperatures may differ. Always ask for specific advice.
Frequently asked questions
How long does the heat-up protocol take for a wooden floor on underfloor heating?
It takes 7 to 10 days. The first 3 days at 20 degrees, then 5 degrees increase per day, 2 days at maximum, and 3 days for cooling down.
Can I walk on the wooden floor during the heat-up protocol?
Yes, you can walk on the floor, but do not place heavy furniture or rugs on it. The floor needs to expand and contract freely.
What happens if I skip the heat-up protocol?
Skipping the protocol can cause the wood to crack, warp, or create gaps. The floor may also lift or become uneven. It can void the warranty.
Does Martijn de Wit Vloeren provide the heat-up protocol for free?
Yes, it is included in their installation service. They give you written instructions and support during the process. They also offer a free quotation.
Is the heat-up protocol the same for all types of wooden floors?
The basic steps are the same, but the maximum temperature may differ. For engineered wood, it is often 45 degrees. For solid oak, it can be 50 degrees. Always follow the specific advice from your provider.