Is a PU cast floor suitable for underfloor heating?
More and more people are choosing underfloor heating. It’s comfortable, efficient, and invisible. But does a PU poured floor work well with this heating system? The answer is yes. In this blog, we explain why a PU poured floor is the perfect match for underfloor heating – step by step.
Good heat conduction makes the difference
A PU cast floor conducts heat extremely well. The floor is thin and seamless, allowing warmth to reach the surface quickly. You feel the difference almost immediately.
PU (polyurethane) is a flexible material. This ensures even heat distribution – no cold corners, no temperature differences. Comfortable for your feet and good for your energy bill.
Heats up quickly, stays warm longer
Another advantage of PU is that it retains heat very well. Even when the heating is switched off, the floor continues to feel warm. This keeps your home pleasant and at a stable temperature.
Because the floor is only a few millimeters thick, the heating system doesn’t need to work as hard. That saves energy. This is especially beneficial with low-temperature heating systems.
No risk of cracks or splitting
Many types of flooring are sensitive to expansion and contraction. Temperature changes can lead to cracks. PU floors are much more resistant to this. They are elastic and move along with the subfloor.
That makes PU ideal for use with underfloor heating. Even with daily heating and cooling cycles, the floor remains beautiful and seamless. The risk of cracking is minimal.
Suitable for all types of systems
Whether you have electric underfloor heating or a water-based system, PU is an excellent match. The floor is completely seamless and is poured directly on top of the heating pipes.
Once the subfloor is completely dry and stable, we begin building up the floor: first the primer, then the poured layer, and finally the protective topcoat. Everything connects seamlessly to the heating system.
What are the practical benefits?
A PU cast floor combined with underfloor heating offers many practical advantages:
More comfort: Always warm feet in winter.
No radiators needed: More space in your home.
Energy-efficient: Less heat loss.
Seamless finish: No thresholds or joints.
Calm appearance: Fits any interior style.
Combined with proper insulation, this not only brings comfort but also lowers energy costs.
What should you know beforehand?
Not every situation is immediately suitable for a cast floor. The subfloor must be dry, clean, and stable. It’s also important that the heating system is thoroughly tested before the floor is installed.
Easy to maintain
A floor with underfloor heating requires no extra maintenance. A PU cast floor is easy to keep clean anyway. Regular vacuuming and mopping are enough. Use a mild cleaning agent and a soft mop.
Even when exposed to heat, the floor remains dimensionally stable and colorfast. The top layer protects against dirt, scratches, and discoloration.
Ideal for homes and offices
Whether it’s a home or a workspace, the combination of PU and underfloor heating works everywhere. In the living room it creates comfort and atmosphere. In an office, it contributes to a pleasant climate and a neat appearance.
This combination is also possible in bathrooms and kitchens. PU cast floors are water-resistant, hygienic, and comfortable. With the right finish, they are even suitable for damp rooms.
Expertly installed for the best result
The combination of underfloor heating and a poured floor requires craftsmanship. The floor must be applied at exactly the right thickness. Drying time and layering are also crucial.
The flooring professionals we work with know exactly how this process works!
Request a free consultation
Would you like to know whether your home or project is suitable for underfloor heating combined with a PU cast floor? Contact us and we’ll review the technical possibilities and your wishes together.
For more information about our floors, visit the cast floors page. Or submit a flooring request using this form.