Friends, tell me what are the top ten wooden floor brands?

One of the top ten floor brands in China: Nature Flooring

One of the top ten floor brands in China: Shengxiang Wood Flooring

One of the top ten floor brands in China 3: Fillinger Wood Flooring

No. 4 of China’s Top Ten Flooring Brands: Del Wood Flooring

No. 5 of China’s Top Ten Flooring Brands: Shengda Wood Flooring

China No. 6 of the top ten floor brands: St. Paul Flooring

No. 7 of the top ten floor brands in China: Rhine Sunshine Wood Flooring

No. 8 of the top ten floor brands in China: Anxin Wood Flooring

No. 9 of the top ten floor brands in China: Cicero Wood Flooring

No. 10 of the top ten floor brands in China: Ruijia Wood Flooring

Solid Wood Flooring

Solid wood flooring is a floor decoration material formed after drying and processing of wood. It has natural patterns, comfortable foot feel, and safe use. It is an ideal material for floor decoration in bedrooms, living rooms, study rooms, etc. The decorative style of solid wood returns to nature and has a natural texture. Today, when the forest coverage rate is declining and environmental protection is strongly promoted, solid wood flooring is even more precious. Solid wood flooring is divided into three grades: AA, A and B, with AA being the highest quality.

The standard for solid wood flooring is GB/T15306-2001. This standard has been implemented since May 1, 2002, and the original 94 standard has been replaced at the same time. The new national standard has made important modifications and additions to the old national standard. Mainly, some dimensions and defects have been modified, and the specifications for applicable tree species and requirements for paint boards have been supplemented. At the same time, the requirements for wood impact toughness, hardness and wear resistance are cancelled.

In the past, the market used to have confusing names, strange names, and even fake and shoddy products mixed in, such as gold pomelo, golden pomelo, and rich wood, making it difficult for customers to distinguish between genuine products and fake ones, and they were confused about good from bad. Therefore, the new standard must be strictly nominal and specified in the form of an appendix. When selling, the test report issued by the authoritative department shall prevail.

1. Main tree species of solid wood flooring

Due to different materials, the hardness, natural color and texture of solid wood flooring are also greatly different. Generally speaking, they are as follows:

Quercus oak (oak), rosewood, eucalyptus (Ibe), borneol (camphora), fragrant two-winged bean, gamba pair, Baodi bean, Pontianak ironwood (ironwood), mountain olive Mu et al.

Medium: teak, merbau (pineapple grid), Saloshuang (balao), fragrant tea dogwood (rue).

Soft: ash, birch.

Light color: aquamarine (beech), birch, mountain olive.

Middle colors: Quercus oak, Fraxinus mandshurica, Sala Shuang, fragrant tea dogwood.

Dark colors: teak, merbau, emerald wood, fragrant two-winged bean, woodpod bean (pincado).

Coarse grain: teak, oak, gamba, manchurian ash.

Fine lines: aquamarine, birch.

2. Moisture content of solid wood flooring

There are three forms of moisture in wood. One is water that exists in the cell cavity and intercellular space, that is, it exists in the capillary tubes. The water in it is called free water. The second type is water absorbed by the cell wall, called adsorbed water. The third type is the water that makes up cellular tissues, which is called chemical water.

When the moisture of moist wood evaporates, the first thing lost is free water. When the free water evaporates and the adsorbed water is still saturated, the moisture content is called the fiber saturation point moisture content.

The fiber saturation point is the turning point of wood properties. Above the fiber saturation point, the strength of wood is constant and does not change with changes in moisture content. At the same time, there is no volume change in the wood such as expansion or contraction. When the moisture content drops below the fiber saturation point, that is, when the adsorbed water in the cell wall begins to evaporate, the strength increases as the moisture content decreases, and the phenomenon of swelling and shrinkage is also evident. The moisture content of different wood fiber saturation points is approximately between 22 and 33.

The humidity and temperature in various areas in nature are relatively stable in different seasons. When wood is in this relative temperature and humidity environment for a long time, its moisture content will reach a relatively constant level.

The moisture content at this time is called the equilibrium moisture content (for example, the annual equilibrium moisture content in Shanghai is 4.6).

The equilibrium moisture content of wood changes with the temperature and humidity of the environment in which they are located. When there is a difference between the equilibrium moisture content and the ambient humidity, it will tend to be close to the environment. This results in the phenomenon of moisture expansion and dry shrinkage of wood, which is a unique physical phenomenon of wood.

Wood is another anisotropic body. The moisture content of wood in actual use is below the fiber saturation point, so the gain and loss of moisture is mainly the adsorbed water of the cell wall. Most of the cells in wood grow longitudinally, and their expansion and contraction are perpendicular to the direction of the cell wall. As a floor, we can find that there is generally no expansion and contraction in the longitudinal direction, while the expansion and contraction rate in the width direction is generally 3% to 6% (referring to the change of the wood moisture content below the fiber saturation point moisture content).

It can be seen that it is very important to control the moisture content of the floor. Not only must we pay attention to it during production, but we should also pay more attention during laying to prevent the floor from getting wet and deforming.

3. Drying and balancing treatment of solid wood flooring

Purpose

(1) To achieve the specified equilibrium moisture content that adapts to the environmental characteristics of the area of ??use.

(2) Eliminate the internal stress existing and generated during the growth and processing of wood.

(3) Adjust and restore deformation.

Since the annual equilibrium moisture content in Shanghai is 15.6%, the moisture content of floors used in Shanghai should be controlled at 10% to 14%.

Process

(1) Natural drying, which takes about 30 to 40 days, so that the moisture content reaches about 30%.

(2) Artificial drying takes about 10 to 30 days to bring the moisture content below 10%. This process simultaneously distills out the sap in the wood, balances the wood cell wall tissue, and stabilizes the dry shrinkage properties.

(3) Health treatment, which takes about 10 to 20 days. Through this process, the three purposes of wood drying are finally achieved.

Drying equilibrium treatment is the so-called heat treatment. The length of time for this treatment will vary depending on different materials, but it cannot be shortened artificially. There is a myth in sales that heat-treated flooring is "forever." In fact, this is impossible. No matter how it is treated, the swelling and drying shrinkage caused by the change of moisture content of wood below the fiber saturation point is inevitable

4. Causes of deformation of solid wood floors

Generally speaking, the most common phenomenon during use is that the floor is tile-shaped or arched. This is caused by the floor being damp. The reasons for the floor being damp are generally as follows:

(1 ) Moisture in the air (such as Huangmeitian).

(2) The floor is not completely dry, so use cement to reinforce the keels.

(3) The keel and the rough floor are too wet.

(4) Use water-based glue.

(5) No special moisture-proof treatment has been done in humid environments such as the first floor.

(6) The section where the stone floor and floor meet is not sealed.

(7) Blisters (such as broken water pipes, water backflow from the balcony, etc.).

In addition, improper product itself and construction can also cause arching. For example, improper drying treatment, insufficient health maintenance, too low moisture content, too shallow back groove, insufficient expansion gaps during construction, too tight laying, etc.

5. Key points for solid wood floor laying and maintenance

(1) The floor should be laid in the later stage of construction, and no cross construction is allowed. It should be sanded and painted as soon as possible after laying. To avoid staining the floor or deforming it due to moisture.

(2) Before laying the floor, it should be unpacked and stacked at the laying site for 1 to 2 days to allow it to adapt to the environment to avoid expansion and contraction deformation after laying.

(3) Moisture-proof measures should be taken when laying, especially in humid places such as the bottom layer. Moisture-proof measures include applying moisture-proof paint, laying moisture-proof membrane, using bedding materials, etc.

(4) The keel should be flat and firm. Do not use cement to reinforce it. It is best to use expansion bolts, American nails, etc.

(5) The keel should be made of larch, Liu'an and other woods with strong nail-holding strength.

The moisture content of the keel or subfloor should be close to the moisture content of the floor. The distance between keels should not be too large, generally no more than 30 cm. Both ends of the floor should be placed on the keels without leaving them empty, and nails must be driven on each keel. Do not use water-based glue.

(6) The floor should not be laid too tightly. Enough expansion joints (0.5 to 1.2 cm) should be left around it, and it should not be laid too wide. If it is wider, it should be cut separately and then pressed with copper. transition.

(7) Thorough isolation and moisture-proof measures should be taken at the junctions between floors and stone floors such as halls, bathrooms, and kitchens.

(8) Floor color difference is inevitable. If you have higher requirements for color difference, you can sort it in advance and adopt a gradual transition method to reduce the visual sense of sudden change.

(9) Avoid rinsing with water during use, avoid prolonged exposure to the sun, continuous direct air blowing from the air conditioner, avoid rain at the window, and avoid friction with hard objects. To protect the floor, wax can be applied to the paint surface (from the perspective of protecting the floor, waxing is more effective than painting).

6. Painted floors

Painted floors are made in factories on assembly lines. Most of the paint used is UV paint, which is quickly cured by ultraviolet light. Its hardness and wear resistance are greatly improved. Higher than ordinary handmade paint, but the adhesion is slightly worse.

Another advantage of lacquered floors is that the entire floor is composed of many quick-painted surfaces, so cracks will not appear as the floor expands and contracts.

Solid wood composite flooring

Solid wood composite flooring is made by sawing and slicing high-quality solid wood into single pieces of surface board, core board and bottom board, and then cutting the three pieces according to the mechanical principles of different types of materials. The single pieces are arranged in a three-dimensional manner of longitudinal, transverse and longitudinal directions, pasted together with glue, and pressed into boards at high temperatures, which controls the directional changes in the wood. Because the surface paint film of this kind of floor has beautiful gloss, is wear-resistant, heat-resistant, impact-resistant, flame-retardant, mildew-proof, and moth-proof, etc., when laid in a room, it not only makes the room look more coordinated and complete, but its price is no less than similar products. Solid wood flooring is more and more popular among consumers due to its high height.

Currently, there are two types of solid wood composite flooring: three-layer and multi-layer.

The surface layer of three-layer solid wood composite flooring is made of high-quality precious wood flakes, and the middle and bottom layers are fast-growing wood, which is hot-pressed with glue. The thickness of the surface layer is about 4 mm, the core layer is about 8 to 9 mm, and the bottom layer is about 2 mm. The total thickness is generally 14 to 15 mm.

Multi-layer solid wood composite flooring uses multi-layer plywood as the base material, and the surface layer is made of hardwood chips or sliced ??veneers, which are hot-pressed with glue. The number of layers of base plywood must be single, usually three or five layers. If the surface layer is made of hardwood chips, the thickness is usually 1.2 mm, and the thickness of the sliced ??board is 0.2 to 0.8 mm. The total thickness is usually not more than 12 mm.

Solid wood composite flooring has the advantages of natural and beautiful wood grain, comfortable foot feel, sound insulation and heat preservation, etc. At the same time, it overcomes the shortcomings of easy deformation of solid wood flooring (the wood fibers of each layer are perpendicular to each other, which disperses the amount of deformation and stress). And the specifications are large and easy to lay.

The disadvantage is that degumming will occur if the gluing quality is poor. In addition, because the surface layer is thin (especially multi-layer), maintenance must be paid attention to during use. Therefore, the use occasions are limited.

Solid wood composite floors are bonded with glue, and the amount of formaldehyde released is a very important indicator. The country has a mandatory standard for this, namely GB18580-2001lt; Formaldehyde Release Limit for Interior Decoration Materials Artificial Panels and Their Products. This standard stipulates that solid wood composite flooring must meet the requirements of E1 level (formaldehyde emission is ≤1.5mg/L) and be clearly stated on the product label.

(3) Laminated flooring (impregnated paper laminated wooden flooring)

Structure: Laminated flooring consists of a four-layer structure.

The first layer: wear-resistant layer. Mainly composed of Al2O3 (aluminum trioxide), it has strong wear resistance and hardness. Some laminate floors composed of melamine cannot meet the requirements of the standard.

The second layer: decorative layer. It is a layer of paper impregnated with melamine resin. The paper is printed with wood grain or other patterns imitating precious tree species.

The third level: grassroots level. Are medium or high density laminates.

After high temperature and high pressure treatment, it has certain moisture-proof and flame-retardant properties. The basic material is wood fiber.

The fourth layer: balance layer. It is a layer of kraft paper with a certain strength and thickness, impregnated with resin to prevent moisture and floor deformation.

Main quality indicators

Surface wear resistance RPM

≥9000 RPM for public use and ≥6000 RPM for home use. The above number of revolutions refers to the initial wear value, that is, the bottom of the surface decoration layer appears, rather than the final wear resistance value, that is, the floor is completely worn through.

In the market, some laminate floors have a very high wear-resistance number, but it is likely to be the final wear-resistance value.

The water absorption thickness expansion rate refers to the degree of increase in the water absorption thickness of the base layer after the laminate flooring is immersed in water at 25°C for a period of time, expressed in %. The greater the expansion rate, the greater the strength of the floor will decrease after getting wet, and the surface will bulge or even fall off, seriously affecting the service life. The water-absorbing thickness expansion rates of various brands currently on the market can vary by more than ten times.

Surface impact resistance

That is, the impact test is carried out on the floor using the prescribed method. The diameter of the pit left after the impact is the basis for the impact performance. The smaller the diameter, the better the impact resistance. The better the impact resistance, the longer the service life. The wear-resistant layer thickness of laminate flooring is more than 0.1 mm, and the thickness can be up to 0.7 mm.

Formaldehyde release

According to GB18580-2001, laminate flooring is a product that can be directly used indoors, so its formaldehyde release must reach E1 level, that is, ≤0.12mg/L .

In addition, there are also indicators such as static bending strength, internal bonding strength, density, moisture content, and bonding strength. Its wear resistance level and formaldehyde limit level should be clearly stated when selling.

Advantages and disadvantages of laminate flooring:

Advantages

Wear resistance: about 10 to 30 times more than ordinary painted floors.

Beautiful: Computers can be used to simulate various wood grains, patterns, and colors.

Stable: It completely breaks up the original wood structure, destroys the anisotropy and the characteristics of moisture expansion and shrinkage, and is extremely stable in size, especially suitable for rooms with floor heating systems.

In addition, it is impact resistant, antistatic, pollution resistant, light resistant, cigarette burning resistant, easy to install, and simple to maintain.

Disadvantages

Blisters cannot be repaired after damage, and the foot feels poor.

It should be pointed out that in the past, some dealers claimed that laminate flooring is a "waterproof floor". This is only for the surface. In fact, the only thing to avoid when using laminate flooring is blisters.

Solid wood composite flooring and laminate flooring are currently all laid by suppliers.

(4) Bamboo flooring

Bamboo flooring is a new type of building decoration material that has been developed in recent years. It uses natural high-quality bamboo as raw material and goes through more than 20 processes. , remove the original bamboo juice, press it under high temperature and high pressure, then go through 3 layers of paint, and finally dry it with infrared rays. Bamboo flooring brings a green and fresh wind to the building materials market with its natural advantages and many excellent properties after molding.

Bamboo flooring has the natural texture of bamboo, which is fresh and elegant, giving people a feeling of returning to nature, elegance and refinement. It has many characteristics. First of all, bamboo flooring uses bamboo instead of wood, which has the original characteristics of wood. In the bamboo processing process, high-quality glue that meets national standards is used to avoid the harm of formaldehyde and other substances to the human body. There are also bamboo floors. Using advanced equipment and technology, through 26 processes of processing the original bamboo, it has the natural beauty of the original wood floor and the durability of the ceramic floor tiles.

Purchasing Bamboo Flooring

The development history of bamboo flooring in my country is not long, only eight or nine years old. It has only started to enter the market on a large scale in recent years. However, due to its unique characteristics: straight texture and elegant color, it has the reputation of "it is better to eat without meat than live without bamboo".

Coupled with the manual selection during the production process, the bamboo flooring has good dimensional stability, mechanical strength, durability, is taken from nature, used from nature, and has no pollution. It also adds more cultural taste to the room and is deeply loved domestically. Loved by foreign consumers. However, since the management of the bamboo flooring processing and production industry is not yet standardized, there is a large gap in technical equipment and production management between companies. Therefore, consumers should put forward the following points for reference when purchasing.

1. Is the product information complete?

Usually, the state clearly stipulates that regular products should have a complete set of product information, including manufacturer, brand, product standards, inspection levels, instructions for use, After-sales service and other information, complete product information shows that the manufacturer is a formal enterprise of a certain scale, and even if there are problems, consumers will have well-documented information.

2. Product appearance quality

Appearance of bamboo flooring

First of all, look at the color of the floor: the natural floor is golden yellow and translucent; the carbonized bamboo floor is bronze or Brown, uniform color and glossy.

Paint quality: Place the floor under good light to see if there are bubbles, pitting, or orange peel on the surface, and then see if the paint surface is rich, full, and smooth.

3. Intrinsic quality

First of all, look at the material. You can weigh it with your hands and look at it with your eyes. If the floor is lighter in your hands, it means it is made of young bamboo; if you look at it, the texture is blurry. If it is not clear, it means that the bamboo is not fresh and it is older bamboo.

Observe whether the floor structure is symmetrical and balanced: you can check the cross-sections at both ends of the bamboo floor to see if it complies with the principle of symmetry and balance. If it complies with the structure, it will be stable.

Whether the floor layer and the layer are glued tightly: use both hands to break it to see if there will be delamination.

4. Processing accuracy

The processing accuracy of bamboo flooring can be randomly sampled. The method is to randomly select multiple floors and place them on a flat surface. After the tenons and grooves are assembled, if they conform to the structure, Just stable.

Bamboo floor laying

The laying method of bamboo flooring is the same as that of solid wood tongue and groove flooring. The keel laying method is used (see solid wood flooring for details), which will not be repeated here.

Bamboo floor maintenance

Correct use and maintenance are the key to extending the service life of bamboo flooring. In recent years, some quality problems have arisen due to improper use of bamboo flooring by some users. Complaints, in this case, not only require dealers or companies to provide good after-sales service, but also need to publicize usage and maintenance knowledge to consumers.

You should pay attention to the following points when using bamboo flooring:

1. Maintain indoor dryness and humidity

Although the bamboo flooring has been dried, the changes in size are reduced. , but because bamboo is a natural material, it will also deform with changes in climate and humidity.

In the dry season in the north, especially when the heating is on, the indoor temperature can be adjusted through different methods, such as using a humidifier or placing a basin of water on the heater; in the yellow mold season in the south, open windows for ventilation. Keep indoors dry.

For this reason, you should try to avoid sunlight exposure and rainwater indoors. If you encounter water, you should wipe it dry in time.

2. Avoid damaging the bamboo floor paint on the floor surface, and avoid hard object impacts, sharp objects scratches, metal friction, etc.

3. Clean the floor correctly. During daily use, keep the floor clean. When cleaning, you can use a clean broom to sweep it, and then mop it with a well-wrung mop to make it look new again. If conditions permit, it is better to apply floor wax every two to three months.

(5) Cork flooring

Cork flooring is known as the "top pyramid consumption of flooring". Cork is an oak tree that grows along the Mediterranean coast, and the raw material of cork products is the bark of oak trees. Compared with solid wood flooring, it is more environmentally friendly, sound-insulating, and has better moisture-proof effect, giving people an excellent foot feel. Cork flooring is soft, quiet, comfortable, and wear-resistant. It can provide a great cushioning effect for the elderly and children who accidentally fall. Its unique sound-absorbing effect and heat preservation performance are also very suitable for bedrooms, conference rooms, libraries, and recording studios. Sheds and other places.

Categories of cork flooring

Cork flooring is divided into five categories as follows:

Category 1: There is no covering layer on the surface of cork flooring. This product is The earliest.

Category 2: Coating on the surface of cork flooring. That is, the surface of cemented cork is coated with UV varnish or color paint or photosensitive varnish PVA. According to different types of paint, it can be divided into three types, namely high gloss, matt and flat. This is a technology from the 1990s. This type of product has relatively high requirements on the surface of cork flooring, that is, the cork material used is relatively pure.

The third category: PVC veneer, that is, the surface of the cork floor is covered with PVC veneer. Its structure is usually four layers:

The surface layer is made of PVC veneer, and its thickness is 0.45mm. ; The second layer is a natural cork decorative layer with a thickness of 0.8mm; the third layer is a cemented cork layer with a thickness of 1.8mm; the bottom layer is a stress balancing and waterproof PVC layer. This layer is very important. Without this layer, the When the material is thermoset during production, the PVC surface layer cools and shrinks, causing the entire floor to warp.

This type of flooring is currently favored by consumers in Beijing and Shanghai.

Category 4: PVC veneer with a thickness of 0.45mm; the second layer is natural thin wood with a thickness of 0.45mm; the third layer is cemented cork with a thickness of about 2mm; the bottom layer is The PVC board is as waterproof as the third type and at the same time balances the stress on the board surface. Its thickness is about 0.2mm.

Category 5: Plastic cork flooring, resin cemented cork flooring, rubber cork flooring.

You can choose categories according to the room:

General family use can choose the first and second categories, because the first category is the most primitive, but all its excellent functions can be displayed, the second category Similar to cork flooring, the cork layer is slightly thicker and pure in texture, but the layer is only 0.1mm-0.2mm thick. It is thin, but soft, and the high-strength wear-resistant layer will not affect the excellent performance of cork. Although the surface layer is thin, it is used carefully at home, so it will not affect the service life, and it is easy to lay. Consumers only need to remove the isolation paper and stick it directly to a clean and dry cement floor.

In places with heavy traffic such as stores and libraries, second and third types of flooring can be used.

Since the second and third types of materials have a thick (0.45mm) flexible wear-resistant layer on the surface, although the sand particles will be brought to the surface of the cork floor, they will not slide after being pressed into the wear-resistant layer. , when the feet leave the sand particles, they will be ejected and will not scratch the wear-resistant layer. Therefore, although the flow of people is large, it will not affect the floor surface.

Rubber cork is suitable for flooring in practice rooms, broadcast studios, hospitals, etc. Its elasticity, vibration absorption, sound absorption, sound insulation and other properties are also very good, but rubber usually has a peculiar smell, so this kind of flooring changes On its surface, a PU or PUA high wear-resistant layer is used as a protective layer to eliminate odor and is also wear-resistant.

Cork floor density:

Cork floor density is divided into three levels: 400kg-450kg/m3; 450kg-500kg/m3; greater than 500kg/m3. Generally, 400kg-450kg/m3 is enough for families. If there are heavy objects in the room, you can choose a slightly higher density. In short, you can choose a density as low as possible because it has better elasticity, heat preservation, sound absorption, vibration absorption and other properties.

Cork floor quality

When choosing a cork floor, first check whether the sanded surface of the floor is smooth, whether there are bulging particles, and whether the cork particles are pure.

To determine whether the side length of the floor is straight, the method is: take 4 pieces of the same floor, lay them on glass or on a flat ground, and assemble them to see if they fit together.

To test the bending strength of the board, the method is to combine the two diagonals of the floor and observe whether there are cracks on the curved surface. If not, it is a high-quality product.

Glue strength inspection.

Put the small sample into boiling water. If you find that the sanded smooth surface turns into a toad-skin-like, uneven surface, then the product is deemed unqualified. High-quality products should have no scratches on their surface when exposed to boiling water. significant changes.

Cork floor maintenance

The maintenance of cork floor is simpler than other wooden floors. During use, sand should be prevented from being brought into the room during the day. If individual sand is brought in, it will not affect the quality of the floor. Wear, so when sand is brought in, pressed into the elastic layer under the foot, it will be ejected when the foot steps away. Of course, it should be reminded here that it is not advisable to bring too much sand that is too dirty, as it will cause flow wear. Therefore, although the sand will have an impact after being brought in, too much will cause wear. Therefore, the sand brought into the room should be removed in time, and no equipment is needed. With a vacuum cleaner, you don’t have to worry about warping, mildew, etc. due to moisture.

If it is used in a place with a large passenger flow, if there is wear and tear in some parts after three or five years, it can be partially compensated, that is, re-coating the local area. Sand it lightly with sandpaper to remove dirt on the surface, then gently wipe it clean with a dry soft cloth, re-coat it, or cover the area with polyester film.

(6) Geothermal heating floor

Geothermal heating floor is also called low-temperature hot water radiant heating floor. Low-temperature floor radiation is a system that uses the ground inside the building for heating. It uses the entire ground as a radiator to lay pipes in the floor structure layer, and heats the floor concrete layer by injecting low-temperature hot water below 60°C into the pipes to keep the ground temperature at about 26°C, making people feel warm and comfortable. The indoor temperature drops evenly, giving people the best feeling of warm feet and cool head, which is in line with human physiological science.

It saves the effective use area of ??the room and can effectively save energy. The perceived temperature using low-temperature hot water floor heating is 2°C to 4°C higher than the actual temperature. It meets the requirements of "measurement by household and temperature adjustment by room". Heating can be stopped when there is no one in the home. When there is a small population, the room can be heated in occupied rooms and the valves in unoccupied rooms can be turned off.

Long service life, the aluminum-plastic composite pipe used is a material recognized in the world with a service life of 50 years. In addition, this heating method also has the characteristics of reducing floor noise, being clean and hygienic, having a wide selection of heat sources, and being suitable for the renovation of old houses.

How to choose a geothermal floor

Measuring a real geothermal floor requires many specific technical parameters. First of all, it must have good heat dissipation. Geothermal floors are very particular about the choice of materials, and they strictly select special base materials whose wood density meets the requirements. The floor thickness is between 6.5-8.5 mm (the standard thickness of geothermal floors), ensuring that the floor has good breathability and heat dissipation functions. The second property is heat resistance. The finished product of the geothermal floor actually has a bit of the taste of steel. It must undergo four cycles of strict inspection during its production process. That is: the floor is boiled in hot water at 100°C for 4 hours → baked in an oven at 60°C for 20 hours → boiled in hot water at 100°C for 3 hours → frozen at minus 20°C for 2 hours. Go back and forth four times to ensure that the floor can withstand high temperatures for a long time, without cracking, degumming, moisture resistance, deformation, or warping. The last point is green environmental protection. Health and safety are the fundamental requirements for geothermal flooring. Products should comply with international environmental standards (European environmental standards are E1; Japanese environmental standards are F1; my country's formaldehyde release content is lower than 0.12 mg/m3, which is equivalent to international standards).

Because specialized geothermal floors are relatively expensive, ordinary salaried workers hope to find a high-quality and low-priced product that is both economical and affordable. Here are some alternatives to introduce to you. There are also the following types of wooden floors suitable for floor heating systems: first, 7 to 8 mm thick laminate flooring, with a 2 to 3 mm thick foam plastic underlay; second, 8 to 12 mm thick three or more layers The first layer of solid wood composite flooring, with a 2 to 3 mm foam underlay; the third, an 8 mm thick spliced ??parquet floor or inlaid parquet floor, with a 2 to 3 mm foam underlay; the fourth, 10 to 12 mm thick Solid wood flat flooring; fifth, solid wood tongue and groove flooring with length, width and height less than 600×60×15mm respectively, the best is 200×40×10mm, which is assembled into a square or herringbone shape during construction Make its thermal deformation uniform.

In short, the following principles should be followed when choosing a wooden floor for geothermal heating: the size of the wooden floor should be stable, the thermal stability should be good, and the moisture content should be low, so that the floor will not be easily deformed after being heated; it should be conducive to heat exchange and conduction, the cushion material should not be too thick; the size of the floor should be thin rather than thick, wide rather than narrow, in order to facilitate the requirements of resistance to deformation and heat conduction.

(7) Plastic flooring

Plastic floors include PVC coiled flooring and PVC block flooring.

Polyvinyl chloride coiled flooring is made of polyvinyl chloride resin as the main raw material, adding appropriate additives, and is produced on a sheet-shaped continuous substrate through a coating process. It is divided into There are two types of foamed PVC coiled flooring and dense PVC coiled flooring with base material. The widths are 1800mm and 2000mm, the length of each roll is 20mm and 30mm, and the total thickness is 1.5mm and 2mm.

PVC coiled flooring is suitable for laying the floor of living rooms and bedrooms (mid-range decoration). The material should be of high quality or first-class quality.

The area required for rolled flooring can be calculated by multiplying the laying area by 1.10. If the width of the membrane floor is exactly the clear width of the room, a loss of 2 can be considered. Coiled flooring can be retailed. You can buy as much as you need. Those who plan to split the flooring should be careful with their budget to avoid waste.

Polyvinyl chloride block flooring is made of polyvinyl chloride and its polymer resin as the main raw materials, with fillers, plasticizers, stabilizers, colorants and other auxiliary materials added, and is calendered, extruded or Produced by extrusion process, there are two types: single layer and homogeneous composite. Its specifications are 300mm×300mm and thickness 1.5mm.

The area of ??each floor is 0.09, and the loss rate of block floors is 2.

Coiled flooring is made by rolling the wear-resistant layer outward on the tube core for packaging, and should be packed in corrugated cartons. The product name, manufacturer name, production date, batch number, grade, color, quantity, weight, etc. should be indicated on each roll or box. During transportation, they must not be exposed to impact, sunlight, or rain. The indoor storage air must be circulated and dry, and the distance from the heat source should not be less than 1m. Membrane flooring should be stacked upright.