Does hardwood flooring have water absorption? What are the main parameters of the floor?

Consideration of the water absorption rate of solid wood flooring materials: the water absorption rate of the southern pavement board is appropriate, if it is the north, because of the large humidity difference in the four seasons, the water absorption rate of the board should be less.

Generally, there are three grades of solid wood flooring. Excellent, first-class and qualified products depend on which grade. There are more enhanced performance indicators, 1The wear-resistant layer mainly depends on the content of aluminum oxide on the surface. At present, the maximum can reach 14,000 brand flooring is generally about 9,000 rpm, the national household standard is 6,000 rpm, and the commercial floor is 9,000 rpm.

2.The substrate mainly looks at the density. The density of the floor gram cubic centimeter is qualified.

3.Formaldehyde emission The national standard GB18580-2001 stipulates that the formaldehyde emission of laminate flooring must meet the E1 standard, that is, the formaldehyde emission does not exceed the international standard of 9mg l00g, and generally do not understand the wood floor too well.

In addition, there are many indicators, such as water absorption thickness, expansion rate, dimensional stability, surface adhesive strength, static bending strength, surface impact resistance, and so on.

Solid wood flooring is generally to see the moisture content, 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, which produces the phenomenon of wet expansion and dry contraction of wood. Therefore, the specific selection steps of the general floor can be divided into the following:

1. Measure the moisture content of the floor.

The national standard stipulates that the moisture content of wood flooring is 8%-13%. In fact, China has a vast territory, and the moisture content requirements in different regions are different. The floor moisture content in the northern part of China is 12%, and the floor moisture content in the southern region should also be controlled within 14%.

Generally, the dealer of wood flooring should have a moisture content tester, if not, it means that the moisture content is not paid attention to. When purchasing, the moisture content of the selected wood flooring in the exhibition hall is first tested, and then the moisture content of the wood floor of the same material and specification is not opened, and if the difference is 2%, it can be considered qualified.

2. Observe the accuracy of the wooden floor.

After the wooden floor is unpacked, about 10 pieces can be taken out and assembled with bare hands, and the tongue and mouth bite, assembly gap, and height difference between adjacent boards can be observed.

3. Check the defects of the substrate.

First, check whether it is the same tree species, whether it is chaotic, and whether the floor has defects such as dead joints, live joints, cracking, decay, and fungus. As for the color difference of the floor, because the wood floor is a natural wood product, there is objectively a phenomenon of color difference and unevenness, which is unavoidable. And laying solid wood flooring to feel the feeling of returning to nature, is in its natural color, pattern, if the pursuit of the floor without color difference, is unreasonable, as long as the paving can be slightly adjusted.

First of all, it is important to understand the environmental conditions of the place where sports wood flooring is to be installed, such as the average annual temperature, the law of humidity changes, and the equilibrium moisture content of the wood. The moisture content of this batch of sports wood flooring is adjusted by these data in the project to meet the local demand and not cause large changes in the floor.

Secondly, when installing sports wood flooring on the construction site, expansion joints must be set aside to offset the amount of deformation caused by the change in moisture content of sports wood flooring. Generally, the joints of the keel and the joints of the wool board should leave a gap of 1-3mm, and the gap between the surface floor according to the width of the floor and the balance moisture content of the ground and the local wood at that time is generally left, and the surface gap must be uniform and straight to give people a perfect three-dimensional feeling. When encountering hardware such as walls and columns, it is necessary to leave a 3-5cm expansion joint to press a ventilated baseboard.

Hehe, ceramic tiles have water absorption, and floors depend on moisture content.

Laminate flooring is made of wood chips, which has the advantage of being cheap, easy to scrub, and non-slip damage. The disadvantage is that if the hard object falls on it, it can not be repaired, the solid wood floor is a pure wood version, the advantage is that the foot is comfortable, the grade is high, the disadvantage is that it is easy to deform, the price is high, and it is generally the first choice in the bedroom.

The solid wood depends on the tree species, lacquer color difference and reflective degree, and the solid wood floor should be stable and straight when laying.