First, solid wood flooring solid wood flooring is dried wood, processed after the formation of ground decoration materials. It has a natural pattern, comfortable foot feeling and safe use. It is an ideal material for the floor decoration of bedrooms, living rooms, and study rooms. The decorative style of solid wood is back to nature, and the texture is natural. In the case of a decline in the forest coverage rate, today's environmental protection is strongly promoted. Solid wood flooring is even more precious. Solid wood flooring is divided into three grades: aa grade, a grade, and b grade. The aa grade has the highest quality.
The standard for solid wood flooring is gb/t15306-2001. The standard was implemented on May 1, 2002, and the original 94 standard was replaced at the same time. The new national standard has made important changes and additions to the old national standard. Mainly to modify the content of some dimensions and defects, supplement the specifications of the applicable tree species and the requirements for the paint board. At the same time, the requirements on the impact toughness and wear resistance of wood have been eliminated.
In the past, once the name of the market was out of order, the name was bizarre, and even the fake and shoddy mix, what kind of gold grapefruit, gold does not change, rich and valuable wood, make the customer true and false indifferent, good or bad not know. Therefore, the new standard must be strictly specified and specified in the form of an annex. The sales report shall be based on the test report issued by the authoritative department.
1. The main tree species of solid wood flooring Because of the different materials, the hardness, natural color and texture of the solid wood flooring are also different. Generally, there are some of the following:
æ§²æ Ž (柞木), 梨梨, é‡æœ¨æœ¨ (ä¾è´), 冰片香 (山樟) 香二翅豆, 甘巴对, é²è¿ªè±†, Pontianak 樟 (Tiemu), 山山木, etc.
Medium: teak, merbau (pineapple grid), sinensis (palao), scented tea (musk).
Soft: Ash, birch.
Light color: Fagus (beech), birch, greenwood.
In the middle color: wolfberry, ash, sampius, scented tea.
Dark color: teak, merbau, heavy ant wood, fragrant two-winged bean, wood kidney bean (product card).
Rough lines: teak, cockroach, croton, ash.
Fine lines: Fagus, birch.
2. The moisture content of solid wood flooring There are three forms of water contained in wood. One is the water present in the cell space and intercellular space, that is, the water present in the capillary tube, which is called free water. The second is the water absorbed by the cell wall, called adsorbed water. The third type is the water that makes up the cell tissue called chemical water.
When moist wood moisture evaporates, the first thing that is lost is free water. When the free water evaporates and the absorption water is still saturated, the water content is called fiber saturation point moisture content.
Fiber saturation point is a turning point in the performance of wood. Above the fiber saturation point, the strength of wood is constant and does not change with the change of moisture content. At the same time, there is no volume change in the wood. When the moisture content falls below the fiber saturation point, that is, when the adsorbed water in the cell wall begins to evaporate, the strength increases with the decrease in moisture content, and the phenomena of bloating and shrinkage also appear clearly. The moisture content of different wood fiber saturation points is between 22% and 33%.
The humidity and temperature in various regions of the natural world are relatively stable in different seasons. Wood is exposed to this relative temperature and humidity for a long time, and its moisture content will reach a relatively constant level. The moisture content at this time is referred to as the equilibrium moisture content (for example, the annual equilibrium moisture content in Shanghai is 4.6%).
The equilibrium moisture content of wood varies with the temperature and humidity of the environment in which they are located. When the equilibrium water content and the ambient humidity have differences, they tend to approach the environment. This produces the phenomenon of wood swelling and shrinkage, which is a unique physical phenomenon of wood.
Wood is also an 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. The vast majority of wood cells 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 or contraction in its longitudinal direction, and the shrinkage rate in the width direction is generally 3% to 6% (refers to the change of wood moisture content below the moisture content of the fiber saturation point).
Thus, it is very important to control the moisture content of the floor. Not only must be paid attention to in production, but more attention should be paid to laying, so that the floor will not be deformed by moisture.
3. The purpose of dry balance treatment of solid wood flooring. (1) To achieve the specified equilibrium water content that suits the environmental characteristics of the area of ​​use.
(2) Eliminate the internal stresses that exist and occur during the growth and processing of wood.
(3) Adjust and restore distortion.
Since the annual equilibrium moisture content in Shanghai is 15.6%, the floor water content used in Shanghai should be controlled at 10% to 14%.
Process (1) Naturally drying takes about 30 to 40 days to bring the moisture content to about 30%.
(2) Artificial drying takes about 10 to 30 days so that the moisture content is below 10%. This process also distilled the pulp from the wood and balanced the wood cell wall structure. The dry shrinkage performance tended to be stable and consistent.
(3) Health treatment takes about 10 to 20 days. Through this process, the three purposes of wood drying are finally achieved.
Dry equilibrium treatment is so-called heat treatment. The length of this treatment will vary from material to material, but it cannot be artificially shortened. There is a wrong statement in sales that the heat treated floor is "never deformed." In fact, this is impossible. Regardless of how it is handled, the phenomenon of moisture expansion and shrinkage that occurs when the moisture content of the wood is below the fiber saturation point is inevitable.
4. The reasons for the deformation of solid wood flooring Generally speaking, there are more phenomena in use when the floor is tiled or arched. This is because the floor is affected by dampness. The reasons for the dampness of the floor are as follows:
(1) Moisture in the air (for example, Huang Meitian).
(2) The floor was not dried and the keel was reinforced with cement.
(3) The keel, the floor of the wool is too wet.
(4) Use water-based glue.
(5) There is no special moisture treatment on the damp environment such as the first floor.
(6) The section where the stone floor meets the floor is not closed.
(7) Blisters (such as broken water pipes, inverted water from balcony, etc.).
In addition, the product itself and improper construction can cause arching. For example, improper drying, insufficient health, low moisture content, too shallow back groove, insufficient expansion gap during construction, and too tight laying.
5. The laying and maintenance of solid wood flooring points (1) The floor should be laid at the end of construction, not cross construction. Lay and paint as soon as possible after laying. So as not to soil the floor or deform the moisture.
(2) Before the floor is laid, it should be unpacked and stacked on the laying site for 1 to 2 days to adapt it to the environment so as to avoid the expansion and contraction after laying.
(3) Laying should be done with moisture-proof measures, especially in the case of relatively wet conditions such as the bottom layer. Moisture-proof measures are painted moisture-proof paint, shop damp-proof film, use bedding treasure and so on.
(4) The keel should be flat and solid, and should not be reinforced with cement. It is best to use expansion bolts, nails, etc.
(5) The keel should use larch and Liu'an, which have strong nail holding power. The moisture content of the keel or wool floor should be close to the moisture content of the floor. Keel spacing should not be too large, generally not more than 30 cm. Both ends of the floor should be placed on the keel and must not be left empty, and nails must be nailed on each keel. Do not use water-based glue.
(6) The floor should not be laid too tightly, and there should be enough expansion joints (0.5-1.2 cm) around it, and it should not be laid in a super wide way. In case of a wider space, it should be separated and cut, and then the transition of copper bars should be pressed.
(7) Thorough isolation and moisture proof measures shall be taken at the junction between the floor and the hall, bathroom, kitchen room and other stone grounds.
(8) The floor color difference is unavoidable. If there is a high requirement for the color difference, it can be sorted beforehand and a gradual transition method can be adopted to reduce the visual sense of sudden change.
(9) Do not rinse with water during use, avoid prolonged exposure to the sun, continuous direct air-conditioning blows, prevent rain forest at the window, avoid collisions with hard objects. To protect the floor, the paint can be waxed (from the perspective of the protective floor, waxing is better than painting).
6. Painted floor Painted floor is made by the factory on the assembly line. Most of the paints used are uv paints, which are quickly cured by ultraviolet rays. Their hardness and wear resistance are much higher than ordinary hand paints, but their adhesion is slightly poor.
Another advantage of lacquered flooring is that the entire floor is made up of many fast paint finishes and therefore does not crack as the floor swells.
Second, solid wood composite flooring solid wood composite flooring, is the high-quality solid wood sawing plane cut into the surface plate, the core plate and soleplate, and then according to the mechanical principle of different varieties of three kinds of single chip in accordance with the vertical, horizontal, vertical three-dimensional arrangement method It is glued together and pressed into plates at high temperature, which controls the anisotropic change of the wood. Because this kind of floor surface film is glossy, beautiful, wearable, heat-resistant, impact-resistant, flame-retardant, mold-proof, and smash-proof, laying in the room not only makes the room more harmonious and perfect, but also its price is not better than similar. Solid wood flooring is high, and therefore more and more popular with consumers.
At present, there are three layers and two layers of solid wood composite flooring.
The surface of the three-story solid wood laminate floor is a high-quality precious wood sheet, and the middle and bottom layers are fast-growing wood, which is formed by hot pressing with glue. The thickness of the surface layer is about 4 mm and the core layer is 8 to 9 mm, the bottom layer is about 2 mm, and the total thickness is generally 14 to 15 mm.
The multi-layer solid wood composite floor is made of multi-layer plywood as the base material, and the surface layer is a hardwood chip mosaic panel or a sliced ​​veneer, and is formed by hot pressing with glue. The number of layers of the base plywood must be single, usually three or five layers, the surface layer is a hardwood chip, the thickness is usually 1.2 mm, the planing plate is 0.2-0.8 mm, and the total thickness is usually not more than 12 mm.
Solid wood composite flooring has the advantages of natural appearance, comfortable foot feel, and sound insulation in solid wood flooring. At the same time, it overcomes the disadvantages of easy deformation of solid wood flooring (the wood fibers in each layer are perpendicular to each other, which disperses the deformation and stress). And large specifications, easy to lay.
The disadvantage is that debonding occurs if the glue quality is poor. In addition, due to the thin (especially multi-layer) surface, care must be taken in use. Therefore, the use of the occasion is limited.
Bonded glue between solid wood flooring, the amount of formaldehyde emission is a very important indicator. The country has already imposed a mandatory standard for this, namely gb18580-2001 <the formaldehyde emission limit of interior decoration materials for artificial boards and their products. The standard specifies that parquet must meet the requirements of e1 (formaldehyde emission ≤ 1.5 mg/l) and be clearly indicated on the product mark.
Third, strengthen the composite floor (impregnated paper laminated wood flooring)
Structure: The laminate flooring consists of a four-layer structure.
The first layer: wear layer. Mainly composed of al2o3 (aluminum oxide), has strong wear resistance and hardness, some of the reinforced composite flooring consisting of melamine can not meet the requirements of the standard.
Second layer: decorative layer. Is a layer of paper impregnated with melamine resin, paper imitation of precious wood species or other patterns.
Third level: base level. It is a medium density or high density laminate. After high temperature and high pressure treatment, it has certain moisture-proof and fire-retardant properties. The basic material is wood fiber.
Fourth floor: Balanced floor. It is a layer of kraft paper, has a certain strength and thickness, and is impregnated with resin to play a role in moisture proofing and floor deformation.
Major quality indicators
1, surface wear-resistant rotation [/b] ≥ 9000 public places, home use ≥ 6,000 rpm. The above rotation refers to the initial grinding value, that is, the appearance of the exposed surface finish, rather than the final wear value, that is, the wear of the floor. The market is that some reinforced laminate floorings have high wear resistance, but they are very likely to be the target wear resistance.
2. The water absorption thickness expansion ratio [/b] refers to the degree of increase in the water absorption thickness of the grass-roots base after the immersed in the water at 25° C. for a certain period of time. The greater the expansion rate, the greater the drop in strength of the floor after the damp, and there will be surface protrusions and even fall off, seriously affecting the service life. At present, the size of the water-absorption thickness expansion rate of various brands on the market may differ by more than ten times.
3, the surface impact resistance [/b] that the method of the impact test of the floor, the size of the pit diameter left after impact is the basis for the impact of good or bad, the smaller the diameter, the better the impact resistance, service life Also long. The thickness of the wear-resistant layer of the laminate flooring is more than 0.1 mm and the thickness can reach 0.7 mm.
4, formaldehyde emissions [/b] according to the provisions of gb18580-2001 laminate flooring can be used directly for indoor products, so the formaldehyde emission must reach e1 level, that is ≤ 0.12mg / l.
In addition there are static bending strength, internal bonding strength, density, moisture content, bonding strength and other indicators. It should be clearly stated on its wear level and formaldehyde limit level.
Strengths and weaknesses of laminate flooring:
Advantages wear resistance: about 10 to 30 times more than ordinary painted floors.
Beautiful: The computer can simulate various wood patterns and colors.
Stability: thoroughly dispelled the structure of the original wood, destroyed the anisotropic and the characteristics of swelling and shrinking, the size is extremely stable, especially for the room heating system.
In addition, there are impact resistance, antistatic, pollution resistance, light resistance, resistance to cigarette burning, easy installation, and easy maintenance.
Disadvantages The blisters cannot be repaired after being damaged, and the foot feels worse.
In particular, it should be pointed out that in the past, dealers have stated that laminate flooring is “waterproof flooringâ€. This is only for surface. In fact, the only thing to avoid in the use of reinforced laminate flooring is blisters.
Solid wood flooring and laminate flooring are currently all laid by the supplier.
Bamboo flooring bamboo flooring is a new type of building decoration material that has only been developed in recent years. It uses natural high-quality bamboo as raw material, and after more than two dozen processes, it removes the bamboo raw slurry juice, and it is joined by high temperature and high pressure. After 3 layers of paint, the final infrared drying. Bamboo flooring brings a green and fresh air to the building materials market with its natural advantages and many excellent properties after molding.
Bamboo flooring has the natural texture of bamboo, fresh and elegant, giving a return to nature, elegant and refined feeling. It has many characteristics. First, bamboo flooring is made of bamboo and wood, which has the original characteristics of wood. In the processing of bamboo, high-quality plastics that meet the national standards are used to avoid the harm of formaldehyde and other substances to the human body, and bamboo flooring. The use of advanced equipment and technology, through the processing of the original bamboo 26 steps, both the natural beauty of the original wood floor and ceramic tile solid and durable.
Bamboo flooring purchase China's bamboo flooring development history is not long, only eight or nine years of history. It has been a matter of recent years that it has begun to enter scale into the market. However, due to its unique features: straight texture, elegant colors, and the reputation of “better to eat without meat and not to live without bambooâ€. In addition to the artificial selection in the production process, the bamboo flooring is dimensionally stable, has good mechanical strength, and is durable. It is derived from nature, naturally used, and non-polluting. It also adds more cultural tastes to the living room, which has won the domestic reputation. Outside consumers love it. However, due to the fact that the management of the bamboo floor processing and production industry is not yet standardized and there is a large gap between the technical equipment and production management of enterprises, the following points are proposed for reference when purchasing.
1. Whether the product information is complete Usually, the formal product country expressly provides that there should be a complete set of product information, including manufacturers, brands, product standards, inspection grades, instructions for use, after-sales service, etc., and the information is complete, indicating that the production company is A formal enterprise with a certain scale can be used even if there are problems.
2, the appearance of the product quality Bamboo flooring appearance first look at the floor color: natural floor color golden yellow, whole body translucent; carbonized bamboo flooring is bronze or brown, uniform color and glossy.
Quality of paint: Place the floor in the light, see if there are bubbles, pits, orange peel on the surface, and see if the paint is rich, plump and flat.
3, the internal quality of the first look at the material, available handcuffs and eye view, if the floor took lighter in the hands, indicating that the use of tender bamboo; if the view of its texture is unclear, indicating that this bamboo is not fresh is the old bamboo.
Observe whether the floor structure is balanced symmetrically: It can be from both ends of the bamboo floor, whether it meets the principle of symmetry, and if it meets the structure, it will be stable.
The glue between the floor and the floor is tight: with two hands, whether there will be stratification.
4, processing precision bamboo flooring processing accuracy, can be randomly sampled, the method is to take any number of floors, placed on the flat surface rake, groove after the assembly, if the structure is stable.
The laying of bamboo flooring on bamboo flooring is the same as the laying of solid wood flooring, and the keel laying method (see the laying of solid wood flooring) is not repeated here.
The correct use and maintenance of bamboo flooring is the key to prolonging the service life of bamboo flooring. In recent years, due to improper use of bamboo flooring by some users, some quality problems have arisen and complaints have arisen. In this case, both distributors and enterprises are required. Do a good job of after-sales service, but also need to promote consumer use, maintenance knowledge.
Bamboo flooring should pay attention to the following points in use:
1. Maintaining indoor humidity and humidity Although the bamboo flooring has been dried, it has reduced its dimensional changes. However, since bamboo is a natural material, it will also be deformed due to changes in climate and humidity.
In the northern part of the country, when it encounters dry seasons, especially when it is heated, the indoor temperature can be adjusted by different methods such as using a humidifier or warm water and putting potted water. In the yellow season of the southern region, ventilation is done to keep the room dry.
For this reason, sunlight exposure and rain shower should be avoided as much as possible in the room, and the water should be wiped off in a timely manner.
2, to avoid damage to the floor surface bamboo floor paint, hard objects should be avoided, sharp scratches, metal friction and so on.
3. Correctly clean the floor During daily use, keep the floor clean. When it is clean, use a clean broom to sweep it, and then use a wringed mop to take a new look. If conditions permit, floor waxes will be applied in two to three months, which is better.
V. Cork flooring Cork flooring is known as "pyramid tip consumption of floors." Cork is an oak tree that grows on the Mediterranean coast. The raw material of cork products is the bark of oak, which is more environmentally friendly and soundproof than solid wood flooring. The moisture-proof effect is also better and it gives people an excellent foot feel. Cork flooring is soft, quiet, comfortable, and wear-resistant. It can provide great cushioning to accidental falls for the elderly and children. Its unique sound absorption and insulation properties are also very suitable for bedrooms, conference rooms, libraries, and recordings. Shed and other places.
There are five categories of cork flooring categories:
The first category: There is no covering on the surface of cork flooring. This product is the earliest.
The second category: Coating on the surface of cork flooring. That is, varnish or paint or photosensitive varnish pva is applied to the surface of cemented cork. According to different paint types, it can be divided into three types, namely, high light, matt light and peace light. This is the technology of the 1990s. The surface of cork flooring required by such products is relatively high, that is, the softwood used is relatively pure.
The third category: pvc veneer, that is, PVC veneer is covered on the surface of cork flooring, and its structure is usually four layers:
The surface layer is pvc veneer with a thickness of 0.45mm; the second layer is a natural cork decoration 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 balance and waterproof pvc layer. One layer is very important. Without this layer, when the material is heat-set during production, the pvc surface layer shrinks and shrinks, causing warping of the entire piece of the floor.
This type of flooring is currently favored by consumers in Beijing and Shanghai.
The fourth category; PVC veneer, the thickness of 0.45mm; the second layer of natural thin wood, the thickness of 0.45mm; the third layer is cemented cork, its thickness is about 2mm; the bottom layer is the same as the third type of pvc board Water resistance is good, and at the same time, the stress on the board surface is balanced. The thickness is about 0.2mm.
The fifth category: plastic cork flooring, resin cemented cork flooring, and rubber cork flooring.
According to the room can choose categories:
General home use can choose the first and second category, because the first category is the most original, but all of its excellent features can be displayed, the second type of cork flooring, slightly thicker cork layer, pure texture, but the layer is only 0.1mm-0.2mm thick Thin, but soft, high-strength wear-resistant layer will not affect the performance of the cork performance. Although the surface layer is thin, but the use of households is more careful, therefore, will not affect the service life, and easy to lay, as long as the consumer removes the separation paper, they can stick directly to the clean and dry concrete floor.
For shops and libraries with large traffic, the second and third floor types can be used.
Due to the fact that the second and third materials have a thick (0.45mm) flexible wear layer, the sand will be carried to the surface of the cork floor and will not slide after being pressed into the wear layer. When the feet leave the sand, It is popped up without scratching the wear layer, so the flow of people is large, but it does not affect the floor surface.
Exercise rooms, broadcast studios, hospitals, etc. are suitable for flooring made of rubber cork. Their elasticity, vibration absorption, sound absorption, sound insulation, etc. are also very good, but rubber usually has an odor. Therefore, this kind of floor changes its surface and is used on its surface. The pu or pua high abrasion layer acts as a protective layer to eliminate odors and is wear-resistant.
Cork floor density:
Cork floor density is divided into three levels 400kg-450kg/m3; 450kg-500kg/m3; greater than 500kg/m3. The average family is 400kg-450kg/m3. If there are heavy objects in the room, it can be selected slightly higher. In short, the density can be selected as small as possible, because it has better elasticity, heat preservation, sound absorption, vibration absorption and other properties.
Cork flooring quality Cork flooring selection first look at the smooth surface of the sanding surface, with or without bulging particles, cork particles are pure.
Choose whether the length of the side of the floor is straight or not. The method is: Take 4 same floors, spread it on the glass, or on the flat ground, and see if it fits together.
To test the bending strength of the board, the method is to combine the two diagonals of the floor to see if there is a crack on the curved surface, and if it is not, it is a high quality product.
Bonding strength test:
Put small pieces into open blisters, and find that the smooth surface of the sand becomes chamois-like, uneven surface, then the product is unqualified, and the quality product should have no significant change on the surface of boiled water.
Cork floor maintenance The maintenance of cork flooring is simpler than other wood floors. During use, it should be avoided that sand particles are carried into the room and individual sand particles are carried in, which will not affect wear. Therefore, when the sand particles are brought in, they are pressed into the foot and pressed. Into the elastic layer, when the footsteps leave, it will be ejected. Of course, it should be reminded here that it is not appropriate to bring too much grit into the dirt, which will cause flow wear. Therefore, although it will affect the sand grains, it will wear out too much. Therefore, the sand grains brought into the room should be promptly removed, and there is no need to equip it. Vacuum cleaners do not have to worry about moisture, warping, mildew, etc.
For occasions with large passenger flow, after three or five years, if there is wear at an individual location, it can be partially used to make up, that is, to re-apply the coating to the local area. The method is very simple. Gently use sandpaper to polish the worn area and remove it. The scale on the surface, and then gently wipe with a dry soft cloth, re-coating the coating, or covered with polyester film in the local place.
Sixth, geothermal floor heating floor heating floor, also known as low-temperature hot water radiation heating floor, low-temperature floor radiation is a use of the ground inside the building for heating systems. It is the entire floor as a radiator laying in the floor structure of the pipeline, through the pipeline into the low temperature of 60 °C below the heating floor concrete layer to maintain the ground temperature around 26 °C, make people feel warm and comfortable. The indoor temperature dropped evenly, giving people the best feeling of cooling their heads and heads, consistent with human physiological sciences.
It saves the effective use of the room and saves energy. The actual temperature of the low-temperature hot water floor heating is 2°C to 4°C higher than the actual temperature. It complies with the requirements of “measured by household and temperature in separate roomsâ€. When no one is in the house, heating can be stopped. When the population is small, heating can be performed in rooms where people are active and the valves of unoccupied rooms can be closed.
With long service life, the aluminum-plastic composite pipe used is a world-acclaimed material with a service life of 50 years. In addition, this heating method also has the characteristics of reducing floor noise, cleaning and hygiene, wide selection of heat sources, and adaptation to old houses.
Measuring a real geothermal floor requires many specific technical parameters. First of all, it must have good heat dissipation. Geothermal flooring is very particular about the choice of materials, and strictly selects those special substrates whose wood density meets the requirements. The floor thickness is between 6.5-8.5 mm (the standard thickness of the geothermal floor) to ensure the floor has good air permeability and heat dissipation. The second characteristic is heat resistance. The finished product of the geothermal floor has actually had a little bit of taste. Four cycles of rigorous testing must be performed during the manufacturing process. That is, the floor is cooked in hot water at 100°C for 4 hours → baked in an oven at 60°C for 20 hours → cooked in hot water at 100°C for 3 hours → frozen at minus 20°C for 2 hours. Round-trip four times to ensure long-term high-temperature floor, no cracking, no degumming, anti-moisture, no deformation, no warping. The last point is green. Health and safety are fundamental requirements of geothermal flooring. Products should meet international environmental protection standards (European environmental protection standard is e1; Japanese environmental protection standard is f1; China's formaldehyde emission content is less than 0.12mg/m3 is equivalent to international standards).
Because specialized geothermal floor prices are relatively expensive, the average wage earners hope to find a cheap and affordable product that is affordable and meets the requirements. Here are several alternatives to introduce to you. There are several types of wood flooring suitable for underfloor heating systems. First, laminate flooring of 7 to 8 mm thick, with 2 to 3 mm foam cushions; and second, 3 or more layers of 8 to 12 mm thick Parquet, with 2 to 3 mm foam cushions; 3rd, 8 mm thick spliced ​​parquet or mosaic floors, 2 to 3 mm foam cushions; 4th, 10 to 12 mm thick The solid wood flat floor; fifth, the wooden floor with the length, width and height of less than 600 × 60 × 15 mm respectively, the best is the floor of 200 × 40 × 10 mm size, which is spelled into a square or herringbone during construction. Make it heat-distributed evenly.
In short, the selection of geothermally heated wood floors requires the following principles: the size of the wooden floor should be stable, the heat stability should be better, the moisture content should be lower, so that the floor will not be easily deformed after being heated; it is beneficial to heat exchange and conduction, and the cushion material should not be suitable. Too thick; floor size should not be thin and thick, should not be narrow width, in order to facilitate the anti-deformation, heat conduction requirements.
Seventh, plastic floor The plastic floor has polyvinyl chloride coil floor and polyvinyl chloride block floor two kinds.
The polyvinyl chloride coil floor is based on polyvinyl chloride resin as the main raw material, adding appropriate additives, and is produced on a sheet-like continuous substrate by a coating process, and is divided into a foamed polyvinyl chloride sheet with a substrate. There are two kinds of compact polyvinyl chloride coiled floor with floor and substrate. The width is 1800mm, 2000mm, each roll length is 20mm, 30mm, and the total thickness is 1.5mm, 2mm.
PVC vinyl flooring is suitable for the laying of living room and bedroom floors (mid-range decoration). The selection of materials should be excellent products or first-class products.
The area required for coil flooring can be calculated by multiplying the laying area by 1.10. If the width of the coil floor is exactly the clear width of the room, 2% of the loss can be taken into account. The floor of the coil can be retailed, and how much it needs to be purchased. The plot should be carefully planned to avoid waste.
PVC block floor is PVC and its copolymer resin as the main raw material, adding fillers, plasticizers, stabilizers, colorants and other accessories, produced by rolling, extrusion or extrusion process, a single layer And homogenous two kinds. Its specifications are 300mm × 300mm, thickness 1.5mm, each floor area is 0.09, block floor loss rate is 2%.
The coiled floor is wrapped with a wear-resistant layer rolled on the core and packaged in corrugated boxes. The name of the product, the name of the manufacturer, the date of manufacture, the lot number, grade, color, quantity, weight, etc. shall be indicated on each roll or box. No impact, sun exposure, or rain may occur during transportation. The indoor storage air must be circulated and dried. The distance from the heat source must not be less than 1m. Coiled floors should be piled upright.
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