The decoration is naturally inseparable from the main materials used in carpentry: joinery boards, laminated boards, particleboard, density boards, decorative boards and other boards. What are the functions of these wood boards with different names in home decoration? The following are the explanations given by experts:
joinery board: it has good moisture-proof effect and cannot be directly painted.
The center of joinery board is a core made of natural wood strips, and both sides are glued with thin wood skins, which is one of the most important materials in decoration. It can be used as furniture, wooden doors and door covers, heating covers, curtain boxes, etc., and has good waterproof performance. When selecting, look at its internal wood, it should not be too broken, and the joinery board with a gap of about 3mm is appropriate. Because the wood grain exposed on the surface is not beautiful, it is rarely painted directly, and it is usually necessary to stick veneer plywood. Furniture and other wood products made of it have to go through two processes: gluing board and painting, and the cost is higher.
integrated board: not easy to deform
this is a new solid wood material, which is made of high-quality imported large-diameter logs and staggered like fingers. Due to different processes, this board has excellent environmental protection performance, which is 1/8 of the allowable formaldehyde content of blockboard. On the other hand, this kind of board made of American spruce and other solid wood can be directly colored and painted, which saves a process compared with joinery board.
the nail holding power of MDF is worse than that of particleboard
particleboard is the main material of cabinets at present, which is made by crushing natural wood into granules and pressing them into boards. Medium density board is formed by pressing powdered sawdust, which has good flatness but poor moisture resistance. In contrast, the nail holding power of MDF is worse than that of particleboard. If the screws are loosened after tightening, it is difficult to fix the MDF because of its low strength, so it is rarely used as a cabinet.
veneer plywood: convenient and cheap
multilayer board, also known as plywood and plywood, has different names for different layers, and its advantages and disadvantages mainly depend on raw materials. At present, the veneer plywood is mainly used in home decoration, that is, very thin solid wood veneer has been pasted on the plywood in the factory. The veneer plywood is easy to use and cheap.
experts remind that the first thing to buy wood is whether it is environmentally friendly. According to regulations, the formaldehyde emission of indoor building materials must be less than or equal to 1.5 mg per liter, and if it exceeds 5 mg per liter, it is not up to standard. Secondly, it depends on the moisture content of wood. When the moisture content of wood is higher than the equilibrium moisture content of the environment, wood will dry and shrink, otherwise it will absorb moisture and expand. The main reason of wood cracking and deformation is that the moisture content is too high or too low. Finally, when buying, don't just try to be cheap. The materials sold at low prices are usually shoddy and formaldehyde seriously exceeds the standard. You should buy them in the regular market, and it is best to buy branded materials.