Vloerverwarming frezen in een anhydrietvloer

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Alphen a/d Rijn Amsterdam

In addition to installing a new wooden floor, Uipkes can assist you throughout the entire process by also installing and connecting the underfloor heating for you. You can also have Underfloor heating installed as a separate service from us. We remove the existing floor, mill the slots and install underfloor heating in the anhydrite floor. Finally , we place the wooden floor on underfloor heating when it is installed. You have one point of contact who takes care of project management for all activities.

Remove existing floor

Existing floors such as wood, tiles, PVC, carpet. We will professionally remove and dispose of linoleum or laminate. If desired, we can level the floor to create a flat screed and prepare it for milling the underfloor heating and, if necessary, installing the new wooden floor that you purchased from us. Once the leveling compound has been applied, it will need to dry for 1 day. the next day the underfloor heating can be milled in.

Existing heating

In many cases, existing heating can be omitted when underfloor heating is chosen as main heating. Existing radiators and convector ducts are closed and removed. Disconnection can be done by a plumber in consultation.

We can close a convector pit, by removing the container/pit completely. Once it has been cemented, it will remain in place. We cut out a piece of the screed around the tank/well. Underlayment plates are placed on top of this, which we cover with repair mortar. The repair mortar needs to dry for a day for full hardness.

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Alphen a/d Rijn Amsterdam

Underfloor heating into anhydrite floor

Based on an anhydrite subfloor, we mill the slots with a special floor milling machine to a depth of approximately 17 mm. With main heating we keep the distance between the slots at 10-12.5 cm center to center. The slots are milled in a snail shell pattern. A hot (supply) and cold (return) pipe is located next to each other. This ensures good distribution of heat in the room. A special dust extraction ensures that milling is as dust-free as possible. After milling the slots, plastic pipes with a width of 14 or 16 mm are laid in the slots. 

Approximately 8 - 10 square meters underfloor heating can be installed per underfloor heating group. Sufficient capacity is generated. For a space of approximately 50m2, approximately 5 groups will be needed.

The pipes of each group are connected to the distribution station, which is connected to the heat source. To put the underfloor heating into operation, a supply, return pipe and socket must be present near the distributor. If necessary, Uipkes wooden floors can supply a plumber who will take care of this work.

After this, the system can be tested and the pipes are fixed in the bends. This means that the pipes remain in the trench during filling. It is important that the slots are filled with an epoxy, mixed with the grinding dust or a special flexible filling mortar. The material must be able to expand and contract with the heat of the pipes.

If you choose a wooden floor, the grooves should never be filled with tile adhesive. The tile adhesive will break due to temperature differences in combination with the stresses of the wooden floor. This means that the pipes are loose under the wooden floor. The Epoxy is applied by means of a chip spread over the floor. The filling will be evenly distributed in the slots for a flat finish.

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Price indication

For the cost indication we have assumed an example of 50 square meters:

  • Removing and disposing of the existing finished floor (depending on the floor type) costs from € 15/m2 incl. VAT.
  • Leveling the screed: an investment of approximately €21/m2 incl. VAT. (material and labor)
  • For milling the underfloor heating , installing the pipes, installing the distribution station, covering the slots and connecting the pipes to the distribution station, the investment (based on 50m2) amounts to an investment of approximately €3150. ,- incl. VAT.
  • Installing a wooden floor starts at €126 per square meter. Depending on the pattern, costs vary. A plank floors costs less than a chevron pattern or herringbone floor.

Project lead time

The entire project from removing the existing floor to installing underfloor heating and replacing furniture takes approximately 7 - 21 days (based on 50 m2). The following distribution can be maintained:

  • Remove existing floor in approx. 1 day.
  • Milling and installing the underfloor heating takes approximately 1 day. (provided preparations have been made)
  • Installing the wooden floor, including the treatment, approximately 3 days. After this, the floor must dry for 2 days.

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Alphen a/d Rijn Amsterdam

Have underfloor Underfloor heating milled into anhydrite

Do you want to have underfloor heating milled into anhydrite or install underfloor heating in a different type of subfloor? We can install underfloor heating with or without purchasing a new wooden floor from Uipkes. Make an appointment in one of our showrooms to coordinate the project and view our beautiful wooden floors.

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Frequently Asked Questions

Is an anhydrite floor suitable for milling underfloor heating ?

An anhydrite floor is a screed based on anhydrite gypsum. It is a leveling agent that is often used as a finishing layer on concrete floors. Anhydrite is well suited for milling underfloor heating because it is a good conductor of heat and the slots can be easily milled without compromising the structural integrity of the floor.

How is underfloor heating milled into an anhydrite floor?

Milling underfloor heating into an anhydrite floor is done using a special floor milling machine. The slots are milled in a volute pattern with a depth of approximately 17 mm. The hot (supply) and cold (return) pipes are placed next to each other in the slots to ensure good heat distribution in the room.

How many square meters underfloor heating can be installed per group?

In general, approximately 8 to 10 square meters underfloor heating can be installed per underfloor heating group. For a room of approximately 50 m², approximately 5 groups are needed to generate sufficient capacity.

How are the slots filled in an anhydrite floor after milling the underfloor heating ?

It is important to fill the grooves in an anhydrite floor correctly. For example, tile adhesive shouldnot be used , as this can lead to fractures and loose pipes under the wooden floor. Instead, the slots are filled with an epoxy resin, mixed with grinding dust or a special flexible filling mortar. This material can expand and contract with the heat of the pipes and provides a flat finish.

How long does it take on average to install underfloor heating in an anhydrite floor?

The turnaround time for the entire project, including removing the existing floor and installing underfloor heating in an anhydrite floor, usually varies from 7 to 21 days, based on an area of 50 m². This includes removing the existing floor (approximately 1 day), milling and installing the underfloor heating (approximately 1 day, provided preparations have been made), installing the wooden floor (approximately 3 days) and the drying time of the floor (2 days).