Parquet flooring is favored by more and more consumers for its natural appearance and excellent performance, but solid wood laminate flooring often encounters many problems during the purchase and paving process. Today, Xiaobian collected 4 complaint cases that were often encountered in solid wood composite flooring, and analyzed the causes and solutions of the problems for your reference.
1. Why does the color change occur after the parquet is paved?
The discoloration of wood is mainly caused by the absorption of ultraviolet light. The sapwood and the heartwood of the wood absorb the ultraviolet light and discolor to a different extent, which may cause a certain color difference in the paved floor. The surface of the multi-layer parquet is natural wood, which has the natural properties of wood. The photochromism produced is a normal phenomenon and is not a product quality problem. The discoloration reaction of most woods is from shallow to deep, and only a few woods are deep and light, and the discoloration on the same floor is basically the same. Therefore, the floor after paving should not be exposed to the sun for a long time, and the necessary shading measures should be taken as appropriate.
External factors affect:
At present, most of the complaints received at my station are in the geothermal environment except for normal photochromism. Before the geothermal floor paving, the moisture content of most floors is about 20%. During the floor covering process, due to the damage of the moisture-proof membrane, when the geothermal heating is carried out, a large amount of moisture will break into the floor from the damaged part, resulting in a sharp increase in the moisture content of the floor. The dissolution of some soluble substances and the action of some color-changing bacteria cause the wood to undergo degeneration or blue transformation. In some cases, in wet areas such as bathrooms and kitchens, the effects of external moist moisture can also cause discoloration of the floor in local areas.
The discoloration of the above-mentioned floor is generated in the damp area of ​​the floor, and the interface between the discolored area and the non-discolored area is very obvious, and is continuously distributed among several floors. Causes:
1. The ground is not flat, there is a small pit bag with unevenness. After the floor is paved, the moisture-proof film is broken, causing ventilation. Take measures to level the floor before installing the floor.
2. When paving, there are sand particles on the ground, which are not cleaned, and the moisture-proof membrane is broken to cause ventilation. The measure is to clean the floor before paving.
3. When the pavement is installed, the joint of the moisture-proof membrane is not sticky, resulting in ventilation. The moisture-proof film should be adhered to the tape, preferably with a plastic tape with a width of 60 mm or more to ensure that the moisture-proof film is airtight.
4. Electric heating is used in some areas. Because the electricity fee is based on peak, valley and flat charging methods, that is, half price (valley) of electricity after 12 o'clock in the evening, many users turn off the switch during the day and turn on the electric heating equipment after 12 o'clock in the evening. The indoor temperature is adjusted to 27 ~ 30 ° C, the surface temperature reaches nearly 100 ° C in a short time, causing damage to the moisture-proof membrane, resulting in ventilation, discoloration and deformation of the floor. This violates the requirements of geothermal heating (surface temperature control is around 40 °C). It is recommended that the user should change to 24-hour continuous heating. Otherwise, the user should be responsible for the discoloration.
5. When the floor is paved to the interface with the wet interface, such as: bathroom, kitchen, shaded balcony, etc., the moisture-proof film should be returned upwards, and the edge of the floor should be covered with a moisture-proof film to prevent moisture from entering, reducing and avoiding the area. Discoloration and deformation of the floor.
Second, why do you have a large gap after the multi-layer solid wood composite floor pavement?
The multi-layer solid wood composite floor has the smallest deformation in many floors, and the deformation amount is only about 1/20 of the maximum deformation of the solid wood floor string cutting material, and no large gap should be generated after the paving. In general, the maximum expansion and contraction of a single 125mm wide floor in the north will not exceed 0.2mm.
After proper paving, the actual moisture content of the summer floor in the northern region is 12% to 13%, the dry and hot environment in winter (about 30% relative humidity), and the moisture content of the floor is 6% to 7%. In the geothermal environment, the final equilibrium moisture content of the floor is 4% to 5%. That is to say, the moisture content after the floor pavement is 12% to 13% in the summer (rainy season), and the floor is in the largest physical state.
If the floor is a rubber suspension suspension, the floor of the room is formed as a whole, and when the moisture content changes, the floor of the room expands and contracts as a whole. At this time, if the room is symmetrically placed on the sides of the room, heavier furniture. When the winter is coming, the room is relatively dry, and the floor will inevitably shrink. Due to the heavy objects on both sides, it will inevitably cause the individual parts of the floor in the middle of the room to open, and the accumulated dry shrinkage will be concentrated in one or several gaps, resulting in a larger floor. Gap. If the edge of the floor is not glued, the standard room of 3 ~ 4m wide, under the geothermal environment conditions, the entire floor shrinkage of the room floor is less than 5mm, and the maximum shrinkage of each floor is less than 0.2mm, which is difficult to see with the naked eye. No glue is easy to repair, and the gap can be evenly distributed. To prevent the floor from swaying, a Spring can be used between the floor and the wall. No matter how the furniture is placed.
In addition, although the multi-layer solid wood composite floor has small deformation, the structure determines the length and width direction of the multi-layer solid wood composite floor. Generally speaking, the floor length is more than 8 times the width. Under the same conditions, the deformation in the length direction is also the width. The multiple relationship of deformation, therefore, the multi-layer parquet floor gap is larger than the side gap is also normal.
Third, why does the multi-layer solid wood composite floor paving sound?
Most of the multi-layer parquets are laid directly on the ground. The reason for the sound after the floor is that the people move on the floor, the floor moves up and down, the sides and sides of the floor and the tongue and the tongue and groove The sound produced by the friction between the two. The up and down movement of the floor is the main factor. In many cases, the floor is not completely laid out, and the sound is generated after a period of use or paving. When we received complaints, the focus of many people's controversy was that the floor was loose (the gap between the tongue and the gutter was too large).
If it is really loose, why is the floor just not finished, and it will not sound until after a while. Even the loose floor we lay it on the flat marble floor, no matter how we walk on the floor, there is no sound, because the floor is in close contact with the ground, the floor does not move up and down when people walk, the floor There is no relative movement between the side and the side, between the tongue and the tongue and groove. Without friction, the sound naturally does not exist.
Therefore, to solve the problem of sound after the floor covering, the key is to solve the problem that people do not move up and down during the stepping on the floor.
4. Why does the solid wood composite floor pavement cause collapse?
Since the beginning of summer, the rainfall in the north has gradually increased, the humidity of the air has increased, and complaints about the collapse of multi-layer parquet and lacquer-locked composite flooring (MDF as the substrate) are also increasing. According to the situation of the complaint, there are mainly The following factors:
1. Product production factors
After the multi-layer parquet and the lacquer-locked composite floor (MDF is the substrate) are opened, during the roll coating or the coating process, the paint overflows to the floor of the floor, and the actual width of the film is greater than that of the floor. The width of the surface layer creates a hidden danger for the floor collapse. The more the paint overflows, the greater the chance of floor collapse. For the production process of painting after first opening, the phenomenon of paint spillage is unavoidable. Although it cannot be judged as a quality problem according to the corresponding product standards, we must attach great importance to it and take measures to minimize the thickness of each painting, especially It is more important to spray, to minimize paint spillage.
2, installation factors
Due to the tightness of the floor of the floor or the slight bending of the floor, the installation resistance of the floor is large, and the impact force is too large and uneven when the floor is installed, causing the partial edge paint film to fall off in a zigzag manner. Its characteristics are that it can be found after installation, irregular random distribution, and the number of occurrences is small. Take the measure by using a floor head as the module against the floor to be installed, then gently tapping the module with a rubber hammer to make the floor close to each other, and the stroke process should be evenly applied.
In addition, when using the keel to install the multi-layer parquet, some people put the nail on the tongue. Since the nail cap does not sink into the tongue, when the next floor is installed, it appears on the surface of the tongue. The convex small bag will collapse at the edge of the small bag when it is serious. It is characterized by the fact that the chipping can be found after installation, with a regular distribution and a small number of occurrences. Take measures to nail the side of the gutter when installing the floor.
3, the ground is uneven
Because the ground is not flat, after the floor is paved, there is a gap between the floor and the ground in some places. During the walking process, the floor moves up and down, and the sides between the floors rub against each other to cause collapse. It is characterized by the fact that after the floor is paved, the collapse occurs in the area where people often move, and it is partial.
Take measures to measure the flatness of the ground before the floor is paved. The flatness should be less than 3mm/2000mm. If the ground is not qualified, it should be leveled before paving.
4. Insufficient reserved gaps around the floor
When the floor is paved, there is insufficient gap in the surrounding area to cause the floor to erect. There is a gap between the floor and the ground. During the walking process, the floor moves up and down, and the sides between the floors rub against each other to cause collapse. It is characterized by the fact that the collapse of the floor occurs after a period of paving, in areas where people often move, and there are many points, and the floor and the wall are observed to be in close contact. Take measures to leave enough gaps around the floor, especially in areas such as doorways, kitchens, balconies, etc., to ensure a uniform gap. When the paving length exceeds 8m, it should be partitioned and bridged.
5, moisture-proof membrane ventilation
After the floor is paved, the moisture-proof film joints are not sealed with tape. The moisture-proof film in some places is damaged during the paving process, causing the ground moisture to leak. A large amount of moisture penetrates into the back of the floor, and the floor is unevenly expanded, causing the floor to deform. Slight distortion, creating a gap between the floor and the ground in the local area. During the walking process, the floor moves up and down, and the sides between the floors rub against each other to cause collapse. It is characterized by a gap between the wall and the floor. Take measures before the floor is paved, the moisture-proof membrane joint must be sealed with tape to ensure airtightness.
6, indoor furniture (heavy objects) symmetrically placed
After the floor is paved, because the heavier items such as furniture, bookcases and fish tanks are placed symmetrically on both sides of the room, the floor is pressed, hindering the moisture absorption of the floor, and the floor cannot be shaken, resulting in a regional bulge, during the movement of people. This caused the floor to collapse in the area. Take measures to place the heavy objects on one side as much as possible to ensure that the side of the floor moves freely.
Summary of small series: Solid wood composite flooring is favored by more and more consumers for its natural appearance and excellent performance, but solid wood composite flooring often encounters many problems during the purchase and paving process. Therefore, everyone is Be sure to pay attention when purchasing and installing.
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