Be careful of excessive formaldehyde! It’s better to pick the floor like this

In the market, most merchants claim that their floors can be used for floor heating systems. But in fact, 55% of these floors cannot be used for heating systems.


1. The thickness of the floor is 12mm-16mm
The national ground radiant heating technology requires that the design temperature of the ground is 24-28°C, and the floor with a thickness of 12mm-16mm is suitable for heating. If the floor is too thick, the temperature difference between the upper and lower surfaces of the floor will be too large, resulting in inconsistent expansion and contraction, thereby deforming the floor.
2. Formaldehyde must be much lower than ordinary floor
The National Floor Standard stipulates that the formaldehyde content of ordinary flooring is less than or equal to 1.5mg/L. But the higher the temperature, the greater the amount of formaldehyde released. Therefore, underfloor heating should be formaldehyde-free to ensure the health of consumers. But it is not impossible at all, because natural logs also contain a small amount of formaldehyde, but their content is very small and will not cause harm to the human body.
3. Use multi-layer solid wood flooring, not pure solid wood flooring
The surface temperature of the floor heating is about 30℃. To achieve long-term non-deformation at this temperature, the size of the floor should not be too large. The smaller the size, the better the stability. And the texture of the wood should be staggered from the horizontal, but also have to be interlaced. Therefore, a solid wood floor should be used. This kind of floor does not need to leave expansion joints during the pavement, and its thermal expansion and expansion forces will cancel each other out inside the floor.
4. The paint on the floor surface needs to have strong adhesion
The expansion and contraction of paint on the floor surface is different from the expansion and contraction of wood. In the case of high temperature, the paint surface will crack and fall off. Therefore, the adhesion of paint is crucial. According to experience, the thicker the paint, the worse the adhesion.