Five doubts about geothermal floor

The geothermal floor is more or less misleading in terms of material, thickness, pavement, cushion, etc. Therefore, the floor has made a professional answer to the doubts that consumers often have.

Do you wonder if a solid wood floor can be used for geothermal?

There are only two types of solid wood floor heating, because only the material of eucalyptus is hard enough to be used in geothermal environments. In a certain floor brand, it directly hit the "Geothermal King." The floor has been solved by the “extra high temperature pyrolysis treatment technology”, which solves the problem that the traditional solid wood floor is easy to deform and crack easily under the geothermal environment, and the thermal conductivity is greater than 8 °C/h, which meets the national standard, so it can be fully used. Geothermal environment. In the floor category, there is ash wood in addition to eucalyptus. Is pure wood flooring more susceptible to deformation?

Experts can use it after special treatment

Due to the geothermal environment, the geothermal floor needs to bear a certain amount of heat. When the moisture in the air is absorbed into the wood, the wood will expand. When the air is relatively dry, the moisture of the wood will run into the air, causing the wood to shrink. Ordinary solid wood flooring is easy to crack and shrink, and can not be used in geothermal environment. Pure solid wood flooring that can be applied to geothermal environments must be specially treated. At present, there are two ways: 1. High-temperature carbonization, that is, high-temperature heat treatment of the billet of the floor at 160 ° C ~ 230 ° C, so that the moisture absorption function of the wood is reduced or the influence on the change of air humidity becomes insensitive. 2. The wood is completely covered with paint, that is, the outer surface exposed by the paint to expose the wood, including the backboard and the tongue and mouth, are closed to avoid contact between the wood and the air, and to eliminate the influence of humidity on the floor.

If you use pure solid wood flooring for geothermal environments, you should pay more attention to the installation. After the sawing of the floor, the newly produced section, whether it is a cross section or a longitudinal section, must be sealed with wax to ensure that the solid wood floor is completely closed; the solid wood floor should be installed once as much as possible to prevent the solid wood floor from being locked during repeated installation of the solid wood floor. The closed coating is destroyed, causing the solid wood floor to deform as the humidity of the air changes. In addition, check whether the ground is smooth and flat before installation. If there is convex sand, it should be disposed of and cleaned. “Mainly to prevent sand particles from damaging the moisture-proof coating on the moisture-proof film and floor.”

Do you doubt that the bamboo flooring is really heat-resistant and not deformed?

It is common to hear that geothermal floors are laminate flooring and solid wood composite flooring. For bamboo geothermal flooring, I really don't know if I can do it.

Experts say that the risk of cracking and shirring is greater

Bamboo flooring usually has two structures: one is an ordinary bamboo floor (arranged in the forward direction); the other is a three-layered bamboo floor (vertical arrangement). From the point of view of the amount of deformation, although the deformation of ordinary bamboo flooring is smaller than that of solid wood flooring, it is much larger than solid wood composite flooring and laminate flooring. Therefore, in the geothermal environment, there is a greater risk of using ordinary bamboo flooring.

If it is a three-layer bamboo flooring, it has similar dimensional stability to the three-layer solid wood composite floor. It can be regarded as a solid wood composite floor and can be used for geothermal. However, the moisture content of the surface layer should be controlled below 8%, otherwise the floor surface crack will occur. “If it is carbonized bamboo flooring, the stability will be better and the risk will be relatively lower.” But experts still recommend bamboo flooring for geothermal, and the risk of surface cracking and shrinkage will be higher than that of strengthening and solid wood composite flooring. “Of course, if the bamboo floor is used in a geothermal environment, if a humidifier or the like is used to ensure that the indoor humidity is maintained at 50%-60%, then there is no problem in using bamboo flooring.”

Do you doubt that the thickness of the three geothermal floors has an effect on thermal conductivity?

In general, the smaller the thickness of the floor, the greater the heat flow. When asked whether the thickness of the geothermal floor affects the thermal conductivity of the geothermal floor, a brand salesperson said that as long as it is a geothermal floor, it generally meets the thermal conductivity requirements. "No matter how thick the thickness is, since it is a geothermal floor, there should be no problem affecting thermal conductivity."

This kind of answer certainly cannot solve the consumer's doubts. Mr. Wang, who is interested in pure solid wood floor heating, said that this type of floor is generally about 17mm thick. He does have some concerns that it will cause poor heat conduction. Mr. Zhang also said that the thicker floor feels better, but it will affect the indoor temperature, so I don't know how to choose.

Experts say that there is little difference in continuous heating

How to balance the thickness and heat conduction? Generally speaking, the greater the thickness of the geothermal floor has a certain influence on the heat conduction, but the impact is not very large. Whether it is 8mm or 12mm, it can be used in geothermal environments. In contrast, the 8mm reinforced floor is faster than the 12mm heat conduction, but in the continuous heating environment, the difference in heat conduction between the two is not obvious; the 12mm foot feels better and the cost is higher. For places with continuous heating, the room temperature in Beijing is not very cold. If the heating system can guarantee the basic requirements of room temperature, you can choose a slightly thicker floor, and there is no problem with 12mm-15mm. If you are in a particularly cold place such as the Northeast, you can consider a 8mm thick floor, so that the thermal conductivity is better.

Under geothermal conditions, the temperature of the floor is relatively high. As the temperature increases, the formaldehyde release rate of the floor increases. Therefore, the floor with low formaldehyde emission should be selected as much as possible. “Try to choose the brand floor, not only the quality of the products is guaranteed, but also the good after-sales service.”

Do you doubt that the four or three-layer parquet is most suitable for geothermal flooring?

Three-layer parquet is called by most sales people as the most suitable for geothermal heating. Is this true?

Experts say that the risk of cracking and shirring is greater

As a geothermal floor, it is best not to choose a floor that is too wide or too long. The larger the floor size, the larger the gap created in the geothermal environment. In particular, the wide-surface single-layer three-layer solid wood composite floor, if produced, the moisture content of the surface layer is too high, and the surface layer cracking will also occur under the geothermal environment conditions. Therefore, as a three-layer solid wood composite floor for geothermal heating, the moisture content of the surface layer must be strictly controlled.

Under geothermal conditions, when the moisture content of the local plate changes, the amount of expansion of the slats is different, and obvious rib-like corrugations appear on the surface of the floor. If the thickness of the three-layer parquet floor is more than 3mm, this phenomenon will not occur. Therefore, a three-layer solid wood composite floor with a surface layer thickness of 2 mm or less is not suitable as a geothermal floor.

Do you have the best floor mat?

When it comes to geothermal flooring, many salesmen mentioned the floor mat. And they all say that they are good at home. Made from pure natural oak. It is not deformed, environmentally friendly, and has good thermal insulation properties to enhance heat conduction. Another one uses ordinary plastic film. So which kind of floor mat is good?

Experts say that 2 mm plastic film is better

The foil paper is directly pasted on the floor heating and acts as a reflection heat. It not only does not conduct heat, but also hinders the evaporation of heat energy. If the floor mat is too thick, it will result in elasticity. If the floor is too elastic, the floor will move up and down, causing the locks to rub against each other and making a sound when walking. Therefore, it is not preferable. Under normal circumstances, the choice of 2 mm thick plastic film can not only buffer the shock absorption, but also can well block the moisture, and is not too thick, will not affect the heat conduction.

Regardless of the material used in the mat, such as cork and plastic film, the most important thing is to prevent moisture. Make sure that the floor is isolated from the floor to prevent moisture from invading the floor and causing deformation.

Consumers can refer to the standard number carried on the floor when purchasing, and whether there is this industry standard. “Of course, some companies are not allowed to sell the floor that can meet this standard as a geothermal floor.” (Image from the Internet)

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