When conducting outdoor work in construction, it is very important to use quality materials that are resistant to any weather conditions. Oriented strand board (OSB) is a worthy representative of inexpensive, but high-quality building materials. Its excellent characteristics provide clear advantages in the implementation of express finishes for interior walls and exterior facades.
Oriented strand board OSP-3 (OSB-3)
Oriented strand board, eng. "Oriented strand board" - material compressed from three layers of oriented (directed) wood shavings. The orientation of chips in OSP-3 has a special meaning:
- internal part has a transverse orientation;
- external parts have a longitudinal orientation.
Thanks to this technology, special strength and material resistance to high loads is achieved.The production of plates is carried out by special chip machines, in which the wood is crushed (debarked), and then thoroughly dried in special installations.
Did you know? The process of drying wood chips borrowed from the food industry, in particular, used the technology of drying in the production of potato chips.
The final stage of preparation is the sorting of chips and its rejection according to the characteristics. In the production of OSB, wood chips may have the following dimensions:
- in length up to 15 cm;
- in width to 1.2 cm;
- in thickness to 0.08 cm
At the end of the production, the layers of chips are laid out in orientation along the conveyor of the machine in a certain plane, after which they are pressed and cut along the dimensional grid. 
At the output of such production, a material of a certain size is obtained, made of correctly oriented wood chips, glued together with resin hardened from high temperatures in the press and treated with chemicals to increase the resistance to weather conditions.
Important! High-quality production guarantees conditional "fire resistance" of the material.
Classification
Oriented strand board according to generally accepted European standards is classified by type:
- low strength for use in rooms with low humidity - type OSB-1;
- high strength for use as a supporting structure in rooms with low humidity - type OSB-2;
- high strength for operation in high humidity conditions - type OSB-3;
- durable material for use as a supporting structure in high humidity conditions - type OSB-4.
Depending on the external coating, OSP-3 is divided into the following types:
- with additional surface treatment (polished);
- without additional surface treatment (unpolished);
- with finished ends (grooved);
- one-side varnished (varnished);
- covered with laminate (laminated).
The type of plate depends on the area of its application. The higher the density and strength of the plates, the higher the endurance under heavy loads in difficult conditions. This quality of OSB directly affects the cost of the material, since the higher the marking of the material, the higher the cost.
Repair in an apartment or house requires serious preliminary preparation. That is why it will be useful for you to learn: how to remove paint from the walls, and whitewash from the ceiling, how to glue wallpaper, how to hold water in a private house, how to put a wall outlet and a switch, how to make a plasterboard partition with a doorway or how to sheathe walls with plasterboard.
Technical specifications
Modern production of building materials allows us to produce products with any technical characteristics.
OSP-3 has various formats:
- sizes can be: 1220 mm × 2440 mm, 1250 mm × 2500 mm, 1250 mm × 2800 mm, 2500 mm × 1850 mm;
- plate thickness may be: 6 mm, 8 mm, 9 mm, 11 mm, 12 mm, 15 mm, 18 mm, 22 mm.
Video: overview and material properties of the OSP OSB-3 Weight depends on the size and thickness of the OSB and can vary from 15 kg to 45 kg.
OSB density - 650 kg / m2, which equates to the density of coniferous plywood.
Did you know? Oriented strand boards are able to maintain their strength even after 24 hours of soaking in water.
The choice of oriented strand board is influenced by the scope of the future application of the material and the conditions for storage if necessary. Maximum storage characteristics help storage in a warehouse with moderate humidity and good ventilation.
In the absence of such conditions, suitable storage under film or canopy; it is important to isolate the plates from all sides with film cover from environmental exposure.
Virtues
Oriented strand board in its characteristics has such positive qualities:
- the naturalness of raw materials in production determines the environmental friendliness of OSB;
- reasonable cost makes the material in demand;
- made of wood chips, therefore, has a small weight;
- OSB made from natural raw materials provides ease and convenience in work, so it does not require the use of highly professional tools;
- the transverse orientation of wood chips gives the board flexibility, this quality is appreciated when working with rounded surfaces;
- transverse orientation also allows to withstand heavy loads in operation;
- wood chips have sound and heat insulation, giving such qualities and OSB.
disadvantages
In contrast to the mass of advantages, the flaws of the PCB have few The main reason for their presence depends on the manufacturer:
- A large amount of detachable wood dust when working with OSB requires the obligatory presence of protective equipment (goggles, mask, gloves). Moreover, a material that has been processed by the production of chemicals, getting into the bronchi and settling there, can cause allergic reactions or other complications in the functioning of the respiratory organs.
- For the production of low quality OSB, resins with phenol-formaldehyde components can be used, which, during the operation of the material, are capable of releasing carcinogens, poisoning indoor air.
Important! Used in the production of low quality wood halves the life and storage of OSP-3.
Application
Scope of oriented strand board is extensive. During internal work, PCBs use:
- for leveling floors;
- wall cladding and ceilings;
- construction of frame structures, including ladders and ceilings;
- in the manufacture of frame furniture or storage racks.
For external works, PCBs are used:
- as the roofing basis for laying of a bituminous tile;
Use of OSB for laying shingles and covering the facade wallsIt will be useful for you to read how to erect a gable and mansard roof, as well as how to roof the roof with an ondulin or metal tile.
- for external facings of facade walls;
- for exterior frame structures, including various kinds of fencing.
Use of OSB for laying shingles and covering the facade wallsThe best manufacturers in Russia
Good characteristics and low cost of OSP-3 makes the material in demand, and its production are in many countries around the world. The only significant difference is the presence of high technologies and innovations in European production of oriented strand board, which is directly reflected on the quality of the material.
As for Russian manufacturers, there are also manufacturers of high-quality building materials, including OSP-3, capable of competing with European manufacturers.
Important! Prices for Russian goods are significantly lower than European ones, which makes products purchased.
The best producers of oriented particle boards in Russia are:
- MLC "Kalevala"With a production capacity of over 600,000 m2, it is located in the Republic of Karelia.
- Company "STOD" (Modern wood processing technology), with a production capacity of over 500,000 m2, is located in the city of Torzhok.
- Kronospan plant (Kronospan)With a production capacity of over 900,000 m2, it is located in Yegoryevsk.
To help carry out construction work quickly and efficiently oriented strand board, the work with which does not require "super efforts" and professional tools. The main advantages of the material include a wide range of formats, convenient labeling and low cost. These qualities are many times superior to the small deficiencies of OSP-3, and competent use of plates ensures a high level of operation.
Feedback from network users
It is cut easily, practically without chips. The main thing is not to hurry.
The range of use of such a plate is quite wide. Someone is stitching the ceiling, someone is using it as a material for partitions, I saw that they also sheathed the garage from the inside, and here I am using the OSB 9 mm thick slab. to cover the roof under the flexible tile.
The material is perfectly smooth, sheet sizes 1.25 meters by 2.5 meters.
It turns out like this. The material OSB-3 is moisture resistant, but this does not mean that it is waterproof. A week in the rain is not critical for him, but it is not worth diving into water. For especially wet rooms there are other materials. I recommend as a fairly versatile material for many types of work. I bought an OSB-plate in the winter even at the price of 14 Belarusian rubles per page. Now the price is about 17 rubles, but if you look at the shops you can find a bit cheaper. The material is not cheap, but there are no special options. Under a flexible tile or edged board to lay down closely, or OSB a plate. The board version is about 3 times more expensive.
