The article describes the advantages and advantages of the finishing material - plywood. What types of them exist and from what tree they are made. Plywood is one of the most popular products in the woodworking industry. This material has become an excellent replacement for expensive and rather rare wood in our time. In addition, due to some of its properties, plywood is much better than all the same natural wood.
The advantages of plywood
Plywood sheets are used in a wide variety of situations and in conjunction with a variety of finishing materials. Thanks to this, work with this material is not only facilitated, but also the scope of its application is significantly increased.
Finishing with plywood is a very simple job, besides, in the future, no special care is required for the finished product.
Unlike that expensive and real wood, plywood can be used at absolutely any temperature, it easily tolerates conditions of high humidity and the use of detergents.
Such good characteristics of plywood may be due to a special manufacturing method. A plywood sheet is a very thin layers of wood glued together, which are called veneers. The number of components of one plywood sheet must necessarily be odd (3-5-7-9 or more pieces), since it is thanks to this that it is possible to maintain symmetry with respect to the central layer. This symmetry determines such indicators as high strength, resistance to various loads and long service life.
An important role is played by the fact that in each layer of the plywood sheet the wood fibers are directed perpendicular to the previous layer. Certain types of plywood may have completely different grain directions - due to this, additional resistance to various twists and bends of the material is achieved. If plywood sheets are used to decorate buildings outside, the layers of material are glued together using a special moisture-resistant glue.
Construction markets offer not only sheet plywood, but also in the form of individual panels. The main range of applications for sheet plywood is cladding, while panels are mainly used to create a variety of partitions. Such material is often also used in the manufacture of furniture, doors, various shelves - in such situations, plywood is also covered with a special type of veneer. Another significant advantage of plywood is its environmental friendliness, which makes it possible to use this material in children's rooms and in the homes of allergy sufferers.
The main types of plywood:
- Birch plywood has the highest strength indicators and therefore is used when extreme load is required. Birch wood itself is a material with significant strength characteristics, and in combination with multilayer production technology, this gives the most effective result. That is why this type of material is so often used in construction, mechanical engineering and other areas of production, where much depends on the strength of the materials used. An equally important role in the use of plywood is played by its aesthetic component. The fact is that a pleasant to the eye warm shade and beautiful texture will not leave indifferent even the most sophisticated woodworking lovers.
- Coniferous plywood it is mainly used when it is required to combine good strength and low weight of the material in one solution. For the production of this type, pine wood is usually used, the properties of which make it possible to provide excellent strength indicators, without worrying about too much weight of the material. Coniferous plywood is in great demand in wooden housing construction. In addition, being naturally impregnated with pine oils, this plywood is highly resistant to rotting and fungal infection. This is also facilitated by gluing based on formaldehyde adhesives. Possessing all the beauty of pine wood, coniferous varieties have found their use in the manufacture of furniture and interior decoration. It is also often used in roofing works, entrusting it with the entire service life of a soft roof. It should be noted that during operation, coniferous plywood changes its original dimensions. In terms of thickness, shrinkage is 0.03%, and in length and width - 0.02%.
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Laminated plywood thanks to the surface treatment, it is very resistant to various natural and chemical influences. Therefore, it is often used in the manufacture of wear-resistant structures, which include various forms of concrete formwork, containers for storing and transporting food and medicine, etc.
The main advantage of film faced plywood (laminated board) over other grades is the choice of the preferred base for the laminate, as well as the color and texture of the surface. This circumstance distinguishes laminated plywood from the background of other varieties and makes it the most attractive for the consumer in the price range. The manufacturing process of these grades consists in covering it on both sides with a paper-resin film based on phenol-formaldehyde resin. Due to this, it has a high density and wear resistance of the surface, and also has increased strength and moisture resistance characteristics.
Film faced plywood, thanks to its large format, has found its use in the construction of bridges and industrial buildings, as well as other large-scale structures.
