How to check the quality of geothermal flooring?

First: look at the face.

The higher the density of the wood, the better its stability performance and the stronger its ability to adapt to the environment, so the geothermal floor chosen by consumers must have good thermal stability.

Second: environmental testing.

Take two basins of hot water at about 30 degrees Celsius, which represent the geothermal or summer temperature, and put the sawdust of the floor and the sawdust of the comparison brand in the two basins of hot water respectively to identify whether the floor is environmentally friendly. Jiuya flooring experts especially remind that the choice of geothermal flooring must be environmentally friendly, otherwise once the floor is heated, the volatilization of harmful gases will be accelerated.

Third: water resistance test:

The stronger the water resistance of the floor, the smaller the degree of wet expansion and contraction, and the less the phenomenon of pulling joints and arching in the geothermal environment.

Fourth: scratch resistance test:

Take a hacksaw and scratch it on the floor to see the degree of scratches on the surface, the surface of the floor with strong wear resistance, the floor surface will remain bright and flexible for a long time, while the inferior floor will have scratches and other problems.

Before the introduction of geothermal floor standards, Jiuya flooring professionals introduced that as long as consumers master the above four simple methods, they can easily divide the advantages and disadvantages of the floor. Jiuya Flooring has always adhered to the people-oriented service concept, adhered to the brand development path, and focused on the R&D and manufacturing of geothermal floors and multi-layer solid wood floors, so that consumers can use them more assured.

Wooden floors? It is not suitable for geothermal use at all.

And there is no very efficient way to inspect, only through a certain amount of time to observe, mainly the quality of the floor itself (such as odor, cracking, bulging, ......).The wood floor itself has relatively strict environmental requirements. There is also your own maintenance, not too dry and not too wet.

As for the slower heat, that's for sure, it has little to do with the quality, only with the material of your wooden floor.

Appearance, thin heat conduction is fast, thick insulation is good. Geothermal floors have requirements for thickness, mainly because they require good thermal conductivity and thermal insulation. Forest wood has done both of these points very well, and because it is a ceramic tile, the stability performance is much better than that of traditional wood flooring.

And it does not contain formaldehyde, which is pollution-free to the human body and environmentally friendly.

The main thing is to look at the thermal conductivity of the wood floor. For details, you can take a look: Chengdu Nuanyang Yang Floor Heating. Learn more.

The floor is planed from 3mm, and its cross-section is pure yellow-white, that is, the natural color of wood, and the texture can be seen with the naked eye is very fine and compact, that is, the wood density is very high. And the cross-sectional comparison of the brand flooring is.

Gray, black, very rough texture, mixed with bark, leaves, etc. We know that the higher the density of wood, the better its stability and ability to adapt to the environment, so the geothermal floor chosen by consumers must have good thermal stability. Take a hacksaw, scratch on the floor, the scratches on the surface are very light, and then scratch on the contrast brand, leaving a deep trace, so, the surface of the floor with strong wear resistance, the floor surface will remain bright and flexible for a long time, unlike inferior floors will have scratches and other problems.

Geothermal floor performance testing.

The wooden floor is laid on the ground radiant heating system, and it can withstand a temperature of more than 40 for a long time, but when the heating system is not turned on, the temperature at room temperature is even sometimes very low, and the high and low will cause the floor to be in an unstable air environment. For this reason, in order to ensure that the wooden flooring is laid on the heating system without quality problems, it must be tested in the following environments for its dimensional stability:

1) Under the condition of high temperature, the dimensional stability test of heat resistance to observe its shrinkage;

2) Dimensional stability test at room temperature;

3) Dimensional stability experiment under hot and cold cycles;

4) Dimensional stability test under high humidity to observe its expansion rate.

Common quality problems with flooring for geothermal use.

1. Cracking. Cracking is a problem that is prone to occur in solid wood floors, because natural wood "shrinks and swells".

2. Deformation. The heat shrinkage ratio of the balance layer of the floor and the floor substrate is only similar at room temperature, and the expansion and contraction amount after the temperature rise and fall is different, which does not play a balancing role, and the floor will be deformed for a long time.

3. Arching. The moisture resistance of the floor is poor, which makes the floor over-expand and arch the phenomenon; During installation, the ground is not treated with moisture or moisture is improperly treated, and the expansion joints are not reserved enough, so that the floor absorbs moisture and expands and arches; Uneven heat conduction, local excessive thermal expansion, arching phenomenon.

4. Fading. Because the ink of laminate flooring decorative paper is very delicate, after being heated for a long time, the pigment will be active, the pigment will be decomposed, the color will become lighter, and the fading phenomenon will be produced.

5. Blistering. In the pressing process, there is a problem of insufficient temperature or uneven maceration of glue, which can cause blistering of the floor under the use of geothermal heat.

1. Cracking: Cracking is a problem that is prone to occur in solid wood flooring, because natural wood is "dry shrinkage and wet expansion", because the fibers are longitudinally grown, so it is easy to crack longitudinally, which affects the cleanliness and beauty of the living room floor. Solid wood parquet is made of solid wood substrate criss-cross lamination, which overcomes the defects of anisotropy of solid wood flooring, and has a small chance of cracking; The material used for laminate flooring is homogeneous and does not crack.

2 Arching: Arching is a common problem with underfloor heating. The moisture resistance of the ordinary floor itself is poor, and the water absorption expansion rate is too high, which will make the floor over-expand and arch phenomenon; Or the ground is not treated with moisture or moisture is not properly treated during installation, and the expansion joint is not reserved enough, so that the floor absorbs moisture and expands and arches; Or uneven heat conduction treatment, local excessive heating expansion, will also appear arching phenomenon.

This phenomenon will first affect the aesthetics of the ground, and if the arch is serious, the product quality will also be affected.

3. Deformation: There is a balance layer on the lower surface of the laminate floor, but the heat shrinkage ratio of the balance layer of the general floor and the floor substrate is only similar at room temperature. The thermal conductivity of ordinary flooring is not good, and the temperature of the lower surface of the floor is higher than that of the upper surface when heated, and the thermal expansion and contraction cause the deformation of the floor.

4 Fading: Fading is mainly caused by decorative paper. Because the ink of laminate flooring decorative paper is very delicate, after being heated for a long time, the pigments will be active, eroding each other, and changing the original color of the floor.

In addition, some decorative paper inks, using ordinary pigments, when just bought, bright and bright, after a long time of thermal use and heating, the pigment decomposes, the color fades, and the phenomenon of fading is produced.

5. Blistering: Due to the problem of insufficient temperature or uneven glue impregnation (spraying) in the surface layer pressing process of ordinary composite flooring, there will be no problem in the case of non-geothermal use, but under the use of geothermal heat, it will cause blistering of the geothermal floor; At the same time, the moisture content of ordinary flooring substrate is too high, which will also lead to blistering of the floor.

The above is the introduction of Jiuya flooring on the problems that are more likely to occur in poor quality geothermal floors.

Qualified geothermal wood flooring is required to meet the health and safety standards and meet the requirements of geothermal paving under experimental conditions. For example, the first geothermal wood floor in China - Madeiran geothermal wood flooring, it can achieve the safety standard under geothermal conditions, that is, when the geothermal temperature is 40 60 and the indoor air is 15 20, the formaldehyde content in the air is less than the health safety value. Wood flooring for geothermal energy is the most important point in choosing a wood floor.

Secondly, in addition to the extremely low formaldehyde emission, the geothermal floor also needs to have the following advantages:

a. Anti-deformation.

b. Excellent waterproof steam performance.

c. Good thermal conductivity.

d. Anti-drying and cracking.

e. Long service life.

The criteria for selecting qualified geothermal wood flooring are basically these.

Geothermal heating conforms to the characteristics of the human body's "warm feet and cool heads", and geothermal heating cancels the heating pipes and radiators in the room, which is more conducive to the layout and beauty of the room, so this method is recognized and accepted by more and more people. How do you choose a geothermal floor? Due to the particularity of geothermal heating, the requirements for the floor are very strict, therefore, in addition to meeting the conventional quality indicators, the geothermal floor must also meet the four characteristics, and the public who want to install geothermal heating can keep an eye on it.

In addition, the quality of the floor pays attention to "three points of flooring, seven points of installation", and the installation standard of professional geothermal flooring is higher, so it is best to provide professional installation by the manufacturer to avoid installation by the construction team itself.

Performance interpretation. 1. Excellent thermal conductivity and heat dissipation.

Wood and bamboo are good natural materials, and there will inevitably be heat loss from the floor to the surface through the floor, which can be minimized by an ideal floor. Therefore, in order to reduce the loss of heat energy and reduce the cost of heating operation and maintenance, the floor heating floor must be "thin but not thick". Choose from multi-layer solid wood, bamboo and laminate flooring with a board thickness of up to 8 mm and a maximum of 10 mm.

2. The stability of the material should be good.

The use environment of geothermal floor is complex, especially in the northern region, the ground has to withstand various moisture in the non-heating season, and the ground temperature rises suddenly during heating, and the floor must bear the double change of "temperature" and "humidity". Therefore, geothermal flooring must be purchased with good material stability, such as laminate flooring, multi-layer solid wood flooring, bamboo flooring, and other integrated composite flooring.

3. Strong moisture-proof and heat-resistant.

Adhesives should be used for integrated composite flooring, and the adhesives should meet the three major indicators of environmental protection, gluing strength, high temperature and high humidity aging. Especially for geothermal flooring, it is necessary to go through high humidity resistance, low temperature resistance and other experiments, if ordinary adhesives are used, environmental protection indicators, moisture resistance, aging resistance, expansion rate, etc. can not meet the standard. Therefore, it is very necessary for consumers to check the merchant's product report and inspection report when purchasing.

4. The wear resistance should be durable.

Since the geothermal floor should be thin and not thick, the composite surface layer is generally 0 3 0 6 mm. The abrasion value of the main surface layer of paint is higher than that of traditional indicators.

Geothermal flooring must have the "four good" requirements of good thermal conductivity, good thermal stability, good environmental protection and good deformation resistance. Floor heat is transferred to the surface through the floor, and there is bound to be heat loss, which is minimized by an ideal floor. Therefore, in order to reduce the loss of heat energy and reduce the cost of heating operation and maintenance, the floor heating floor must be "thin but not thick".

Floor heating floor acceptance is the most critical.

The abundance of destination board products on the market will always dazzle consumers and have no choice. In this regard, experts reminded consumers that no matter how the business advertises, consumers must do a good job of acceptance.

After the floor heating floor paving is completed, the floor heating test should be carried out. After the installation of the floor heating floor is completed, in addition to the regular acceptance, the most critical link is to carry out the temperature acceptance of the floor. After the floor is laid or during the heating period after winter, the underfloor heating system should be warmed up slowly when it is first run.

When the basal ground temperature reaches 25 degrees Celsius, this temperature should be maintained for 12 hours 24 hours. Then, slowly increase the temperature at a rate of 1 degree Celsius per hour until the set room temperature of 14 degrees Celsius to 22 degrees Celsius is reached. The surface temperature of the wooden floor should not exceed 28 degrees Celsius. In a short period of time, the limit temperature can not be higher than 32 degrees Celsius, the higher the temperature, the greater the heat loss, the shorter the life of the thermal system, and it is easy to cause hidden dangers, and the floor is prone to scooping, twisting, bending, cracking and other phenomena.

After the floor paving is completed, environmental protection acceptance should be done. Laminate flooring itself suffers from the issue of formaldehyde release, and when it is used as a floor heating floor, the amount of formaldehyde released may increase after being heated. Therefore, after paving the floor heating floor, it is necessary to do environmental protection acceptance to ensure that the release of free formaldehyde meets the standard requirements of the national standard of milligrams of liters.

In order to ensure that the floor can meet the functional requirements of the floor heating floor, two points must be achieved when purchasing: first, the floor heating floor should be tested for environmental protection before it is paved, and environmental protection acceptance should be carried out after it is paved;

Second, the environmental protection indicators of floor heating floor accessories must also meet the standard.

Traditional hardwood flooring requires a keel to be installed, so it cannot be used for geothermal heating.

Parquet should be chosen. Multi-layer solid wood composite or rotten three-layer solid wood composite. Both.

Pay attention to two issues:

1.Environmental protection level.

Adhesives must be used in the production process of parquet, and the quality of the adhesive determines the environmental protection level of the floor. Formal large enterprises, especially those engaged in the export processing of flooring, choose basically international brands, such as Finland-Tyre. This grade of indiscriminate mold leasing adhesive can meet EO standards, and formaldehyde emissions are almost negligible.

However, some small factories will use low-grade adhesives in order to reduce costs.

2.Thickness of the table.

The top layer of the floor is called the table. From a certain point of view, the thickness of the table plate determines the service life of the floor.

Most of the common surface plate thicknesses on the market are.

The thickness of the surface plate of the exported processed floor is controlled at 3mm-6mmThe difference between the two is 5-10 times.

The watch board is single-use, which means that there is no chance of repair or reprocessing.

It is recommended to select a table with a thickness above the table. Such floors can be re-painted after a few years, and they will look brand new.