Since the beginning of summer, the amount of rainfall in the north has gradually increased, the humidity of the air has increased, and complaints about the collapse of multi-layer solid wood composite flooring and lacquer-locking composite flooring (MDF as the base material) have also been increasing. According to the analysis of the complaints, there are mainly The following factors:
1, product production factors
After the multi-layer solid wood composite floor and lacquer-lock composite flooring (MDF is the base material) are opened, the paint overflows to the floor of the floor during the process of roller coating or shower coating. The actual width of the paint film is greater than that of the floor. The width of the surface layer creates hidden dangers for floor collapse. The more paint spills, the greater the chance of floor collapse. For the production process of painting after the first opening, the phenomenon of paint spillage is unavoidable. In accordance with the corresponding product standards, although it cannot be judged as a quality problem, we must pay great attention to it and take measures to minimize the thickness of each painting, especially It is more important to apply the coating and minimize the paint spillage.
2, installation factors
Due to the over-tightness of the floor or the slight bending of the floor, the installation resistance of the floor is large, and the knocking force during floor installation is too large and uneven, resulting in the partial edge paint film jagged. Its characteristic is that it can be found after installation, there is no regular random distribution, the number of occurrence is less. The measure is to use a piece of floor board when the module is against the installed floor, and then tap the module with a rubber mallet to make the floor close to each other. The hammering process should be uniform.
In addition, when using a keel to install a multi-layer engineered wood flooring, some people hit the nails on the tongue. Because the nail caps are not completely sinking into the tongue, when the next floor is installed, it appears on the surface of the tongue and nails. Convex small packets, severe collapse will appear at the edge of the packet. It is characterized by the fact that the chippings can be found after installation, have a regular distribution, and have fewer occurrences. Take measures to nail the side of the groove while installing the floor.
3, uneven ground
Due to the unevenness of the floor, after the floor is paved, gaps are created between the floors of the individual places and the ground. During walking, the floor moves up and down, and the side edges between the floors rub against each other to cause collapse. Its characteristic is that after the floor is laid, the collapse occurs in the area where people often walk, and it is partial.
Take measures to measure the flatness of the ground before the floor is laid. The flatness should be less than 3mm/2000mm. If the ground does not meet the requirements, it should be leveled before paving.
4, there is insufficient reserved space around the floor pavement
Insufficient reserved space around the floor paving leads to floor arching. The gap between the floor and the floor creates a gap. During walking, the floor moves up and down, and the sides of the floor rub against each other to cause collapse. It is characterized by the fact that the collapse of the floor often occurs after the pavement has been installed for a period of time, in areas where people often walk, and is multi-pointed. The observation floor has been in close contact with the wall edge. Take measures to leave gaps around the floor, especially in the entrance, wall kitchen, balconies and other areas to leave gaps to ensure that the reserved gap is uniform. When the pavement length exceeds 8m, it should be cut off and bridged.
5, moisture-proof membrane ventilation
After the floor is paved, due to moisture-proof membrane joints are not sealed with tape, the moisture-proof film in some places is damaged during the pavement process, resulting in leakage of ground moisture, a large amount of moisture into the back of the floor, the floor produces uneven expansion, so that the floor deformation, Slight distortion, creating a gap between the floor in the local area and the ground. As the people walk, the floor moves up and down, and the sides of the floor rub against each other to cause collapse. Its characteristic is that there may be gaps between the wall and the floor. Take measures before the floor pavement, moisture-proof membrane joints must be sealed with tape to ensure airtight.
6, indoor furniture (weight) placed symmetrically
After the floor is paved, because the heavier items such as furniture, bookcases, fish tanks, etc. are placed symmetrically on both sides of the room, the floor is pressed, impeding the floor from absorbing moisture and expanding, the floor cannot move, and regional bulging occurs, as people walk around In the middle, the floor in the area was broken. Take measures to place heavy objects on one side as much as possible to ensure that the floor is free to move on one side.
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