And MDF in construction and in the manufacture of furniture have been used for quite a long time. Them absolute advantage are low cost, easy processing and long service life. However, such sheets have one very serious drawback. They are made using a large number resins containing harmful phenol formaldehyde. Therefore, in recent years, OSB boards that are practically devoid of such a drawback, relatively recently appeared on sale, have become increasingly popular among consumers.

Definition

What is an OSB? Outwardly, such sheets are very similar to chipboard. However, in addition to relative harmlessness, they are also more convenient to use and operate. They call OSB boards modern construction material, made using chips and wood chips, as well as resins (in small quantities) as a binder. Like chipboard, sheets of this type have an absolutely uniform surface. That is, they are devoid of protrusions, depressions, knots, etc.

What is OSB: features

Such plates consist of several alternating layers of chips and wood chips. They may vary in size and thickness. But the layers in them are always perpendicular to each other. In this case, the upper ones usually go along the length of the sheet, the lower ones - across. This structure makes this sheet material resistant to tearing and compression. In addition, OSB boards, due to their structure, hold fasteners very well. Another undoubted advantage of such a structure is that OSB sheets are very strong in bending.

Thus, knowing about the structural features of this material, one can understand what the decoding of the OSB is. The plate consists of layers of different directions and is called accordingly.

In simple terms, OSB stands for "oriented strand board". The structure, which is complex in comparison with chipboard and MDF, makes this material convenient to use, durable and very popular with the consumer.

What sizes can

Plates of this type are used in various areas of construction and furniture production. Therefore, their sizes are different. Most often on sale today there are standard sheets of 2500x1250 mm. The thickness of the plates in this case can vary from 8 to 26 mm (in increments of 2 mm). Weigh material of this type, depending on the dimensions, can be from 15 to 40 kg. That is, these plates, unlike, for example, from the same wood or plywood, are also quite light.

Scope of use

What is the OSB, we thus found out. But where exactly is this material most often used? In construction, such plates can be used:

for the construction of temporary enclosing structures;

for cladding walls, floors and ceilings;

for roofing under soft materials;

for temporary sealing of windows, doors, etc.

The use of OSB in furniture production makes it possible to produce practical, durable and attractive cabinets. Bedside tables, tables, chairs and chests of drawers are also constructed from sheets of this type. Quite often, such material is used in the production upholstered furniture and beds.

Types by density

Such plates can differ not only in size and thickness. There are several varieties and density. When buying such material, of course, among other things, you should pay attention to its labeling. So, for example, plates:

OSB-1 have a rather loose structure. They cannot bear too much load. In addition, such sheets are very weakly resistant to moisture. It is allowed to use OSB-1 boards, for example, for sheathing walls and ceilings in very dry rooms.

OSB-2 differs from OSB-1 in a denser structure. Accordingly, they have a greater margin of safety. It is allowed to use such material, for example, for sheathing floors that are not subjected to too significant loads during operation. Also, such sheets can withstand greater humidity than OSB-1. They can also be used in ordinary residential premises - in corridors, halls, bedrooms.

OSP-3 are the most popular variety among consumers. Plates of this brand can be used, among other things, in wet rooms. It is allowed to sheathe them and street structures. But in the latter case, they need to be additionally treated with compounds that increase resistance to moisture and frost resistance.

OSB-4 - the most dense sheets. The scope of use of such plates is practically unlimited. Their only drawback is their rather high cost.

On what grounds can plates still differ

What is it - OSB-plate - and what are the varieties of such material - it is clear. Sheets of this type differ mainly only in density and size. But there are several other features by which this material can be classified.

Most often on sale you can find ordinary OSB sheets. However, if you wish, today it will not be difficult to purchase such material:

grooved;

laminated;

varnished.

Oriented strand board OSB of the first variety has a groove or ridge on all sides. They are usually used for sheathing flat planes. Laminated OSB is often used in the manufacture of reusable formwork. The surface of these plates is very smooth. And therefore, the formwork made from them is easy to remove after hardening. cement mortar. Besides, it's ready concrete surface when using such formwork, it turns out even and smooth. As a result, in the future, among other things, the cost of its finishing is also reduced.

A feature of lacquered OSB boards (OSB) is, first of all, that they look more attractive than other varieties. This material is most often used to assemble temporary floors or walls.

Advantages

This material is lightweight, inexpensive and easy to use. The advantages of OSB boards, among other things, include:

stability in terms of geometry;

relative fire safety;

the ability to resist the fungus well;

durability;

ease of processing.

Unlike the same tree, OSB sheets do not warp or dry out during operation. During the production process, such boards are already initially treated with compounds that increase fire resistance and antiseptic properties.

Sawing and drilling OSB is not as difficult as, for example, plywood. The edge does not crumble in such plates during processing.

It is believed that in terms of technical properties, OSB boards are superior to both chipboard and wood, fiberboard and MDF. This material wins in terms of performance and in comparison with plywood. Because of the excellent qualities, builders even call OSB boards "improved wood."

Material disadvantages

The advantages of OSB boards, therefore, are just a huge amount. But this one has modern material, like any other, and some disadvantages. The disadvantages of OSB sheets, consumers include in the first place:

the ability to draw water and swell;

albeit not too serious, but still a danger in terms of ecology.

Resins in such material are contained in minimal quantities. Therefore, these boards are considered more environmentally friendly than, for example, chipboard and even MDF. However, OSB can still emit phenol formaldehyde. When used in rooms of class E2 or in rooms with an air temperature above 30 ° C, it is recommended that such sheets be additionally treated with primers or covered with drywall.

When buying OSB boards, be sure, among other things, you should pay attention to the brand of the manufacturer. The most environmentally friendly plates of this variety, supplied by European companies, are considered. The most low-quality sheets of this type are made in China. Experienced builders recommend using plates from the Celestial Empire in the most extreme cases and only in the open air.

For OSB sheets manufactured Russian companies, in terms of security, there is currently no particularly negative information on the Web. In any case, before buying plates of this type of any brands, among other things, you should also study the manufacturer's certificates. Phenol-formaldehyde resins can actually be very dangerous for human and animal health. For example, it is believed that such vapors can cause cancer.

Characteristics of OSB boards

In consumers, sheets of this type, therefore, enjoy well-deserved popularity. This is determined, of course, primarily by their excellent technical characteristics. Below the reader can see a table comparing OSB with other modern popular building materials.

Comparison of OSB with other types of sheet materials

Feature/Scores		Plywood			lumber
Bending strength
Dimensional stability
Presence of defects
Ability to hold fasteners

Specific specifications OSB boards depend mainly on their type in terms of density.

Features of working with OSB

What is OSB is thus clear. But how to work with plates of this variety? It is very easy to assemble structures from sheets of this type, as already mentioned. OSB boards are fastened, regardless of their size and thickness, usually on wooden frames using self-tapping screws. At the same time, when using various kinds of enclosing structures for sheathing, it is recommended to equip a ventilation layer under such sheets.

Finishing over tiles

Surfaces sheathed with OSB can be decorated in different ways. Very often for finishing on top of such plates are used:

dyes;

drywall;

ceramic tile;

laminate, carpets, linoleum;

It is allowed to paint this type of material with both water-based compositions and acrylics. Before performing this operation, the plates are recommended to be primed. Processing OSB sheets, if necessary, is allowed using not only dye, but also varnish. Before applying the primer, such plates should preferably be further sanded. It is believed that from acrylic paints for processing OSB, Nordica Eco 3330-03 is best suited. The best primer for this material is GF-021.

Tiles should be fixed to OSB using adhesives designed for wood tiling. Before sheathing OSB floors with laminate, linoleum or carpet, it is recommended to seal all gaps between the sheets with silicone.

Before wallpapering, OSB boards, as well as before painting, must be primed. In this case, the surface of the material must also be sanded first. It is recommended to add a little PVA to the glue when decorating with wallpaper. This will reduce the water content in it and prevent the plates from swelling in the future.

• Balcony Balcony and Loggia Repair Dreams of a home owner about a warm, comfortable balcony or loggia are feasible. One has only to want, having the required number of banknotes, and dreams will turn into reality. Combining a glazed, insulated balcony with a room and a kitchen, turning the loggia into winter greenhouse or in a separate living room - all this can be done, and with your own hands. In this section of the site you will find step by step instructions for insulation and glazing, as well as installation and installation finishing balconies and loggias. They will help you do the work yourself or professionally evaluate repair work made by qualified builders.
• Bathroom Bathroom renovation While taking a hot bath, you probably want to relax. beautiful ceiling, luxurious walls and floor are very conducive to this process. Few owners of square meters» refuse to use high-quality sanitary ware, faience sanitary ware, household appliances and equipment. The publications collected in this section of the site will help you choose the right household appliances, plumbing and finishing materials for you. Even in Khrushchev, this room, the area of ​​\u200b\u200bwhich does not exceed 2 square meters, with proper planning, can look great and meet functional requirements.
• doors Entrance and interior doors - selection, installation, installation My home is my fortress. This is how the English lawyer Edward Kok once described the feeling of security in his home. But not a single outpost will be reliably protected without strong, and sometimes even armored gates. A modern apartment, like a medieval citadel, needs protection in the form of front door. We think that if you protect the entrance to the apartment with a modern door unit, you will feel a sense of security forever. But that's not all. Members big family, who have their own personal space in the house, instinctively want to isolate themselves at least for a while, even from relatives. And here it is impossible to do without interior door. This section of the site contains publications on the selection and installation of entrance and interior doors.
• Kitchen Kitchen renovation The kitchen is undoubtedly the most popular room in a modern apartment. We cook in it, and often eat food, unless, of course, a dining room is provided in the house. During the preparation of culinary masterpieces, the hostess spends almost all her free time in it. It is important that the necessary kitchen utensils, household items and equipment are at hand, and the furniture is located so as not to hamper the movement of the cook. In this section of our website, we will talk about finishing materials compatible with food and their application. Our step-by-step instructions will allow you to do your own kitchen renovation or teach you how to supervise the work of a hired repair team.
• Repair materials The choice of building materials and their description Materials for repair is a capacious concept that implies thousands of names, hundreds of groups and dozens of categories of building materials. They help to realize the wishes and dreams of a comfortable, functional and convenient housing that meets the requirements. Wherein appearance and the quality of the elements of your home directly depends on the chosen building materials. In order not to regret the money spent in vain, when a poor-quality finish falls off or loses its decorative properties, purchase only repair materials tested by professionals. Do right choice The publications collected in this section of the site will help you.
• Window Windows and balcony frames An important element of a modern apartment is a window. And the question of what it is made of plays an important role in ensuring comfortable living in this apartment. Indeed, in addition to protecting the room from atmospheric phenomena, the window protects from street noise, especially when the room is facing a busy highway. This section contains materials on the manufacture, appearance and features of windows and balcony frames for your apartment or private house.
• Floor Repair and finishing of the floor An integral part of the interior of the dwelling is the floor. Trouble-free living of households is associated with the condition of the base of the floor and flooring. Even the health of the inhabitants of the apartment directly depends on whether the floor is warm or cold. This is especially true for young children who spend most of their time in games, on the floor. Modern building materials require absolute evenness of the base on which laying is planned. This section of the site combines publications in which we describe and show the process of preparing, installing and installing screed, "warm floors" and finishing.
• Ceiling Repair and decoration of the ceiling It is known that ceilings in modern apartments are not very even. The team of our site, relying on vast experience, will tell you many ways to repair, level and finish them with finishing building materials. Stretch - PVC and fabric, suspended - plasterboard, coffered, armstrong and grillto, pasted over with wallpaper and painted with paints. Each type of ceiling can become a real masterpiece. Step-by-step instructions, photos and videos about the installation or installation of each type of ceiling are collected in this section of the site. With the help of these materials, you can easily do everything yourself or professionally control the craftsmen hired to carry out the work.
• Walls Erecting, leveling and finishing walls Having a roof over your head is certainly great, but it would not hurt to lean on strong walls built for centuries. In apartments of block and brick high-rise buildings, they are naturally strong, but crooked, like a janissary's saber. Therefore, before finishing, they need to be leveled, and at the same time soundproofed to isolate themselves from noisy and reckless neighbors. And the walls bordering on the atmospheric environment also require insulation. In this section of the site, we have collected descriptions of building materials and step-by-step instructions for installing, assembling and fixing the finish, as well as sound, noise and even waterproofing walls.
• Toilet and sewerage Renovation of the toilet The age of the Internet and urbanization, superspeeds and stress leaves little room for solitude and the opportunity to calmly reflect on the complexity of life. Household chores are also not conducive to special philosophical activity of the brain. However, during the day, even a super-busy person finds time for solitude and calm reasoning. This time is dictated by nature itself and the place for it, no matter how ridiculous it may be, is the toilet. This section of our site contains publications on the arrangement of the toilet, sewerage, on the choice of plumbing and its installation.
• Home construction This section contains materials on the construction of houses, cottages, baths and other buildings. Construction of a house from the zero cycle, to the final finishing of the floor, walls, ceilings.
  • Foundation This section contains articles describing various kinds foundation for the house. For the construction of buildings, strip, free-standing columnar, pile and slab or combined foundations are used. They are prefabricated (solid monolithic or glass type), monolithic and prefabricated-monolithic. The choice of foundation depends on the seismicity of the area, underlying soils and architectural solutions.

Home » Repair materials

What is OSB board

Technological progress cannot be stopped. Often, the country's woodworking industry offers the consumer new wood processing products that are ideal for repair and construction works. OSB plate, one of such building materials. Now we will try to consider it in this publication.

osb board specifications application

OSB is - (oriented strand board). Translated from English - oriented strand board (OSB, OSB).

What is OSB board? The building material is a heterogeneous, but durable sheets of compressed wood chips, large in size. The size of chips and chips can reach 150 mm. Producers use a mixture of coniferous and hardwood wood.

Natural and synthetic resins and paraffin are added to the adhesive composition used to join wood chips and sawdust into a monolith. The sheet impregnated with adhesives and water-repellent substances additionally receives the property of moisture resistance.

The manufacturing technology makes it possible to form a plate from three or four layers of chips. Moreover, in each layer, the chips lie in one direction, and in the next in the other. In the outer layers, the chips are oriented along the slab, while in the inner layers, across. Hence the name - oriented strand.

How osb boards are made

Some time ago, building materials were imported to us from Europe, North America and China, but now its production has been established in Russia, as its popularity is steadily growing. Let's look at what osb is in the manufacturing process.

OSB production

Manufacturing technology includes several stages:

1. Initial processing of wood - the raw material is subjected to heat treatment in a humid environment to soften the wood.
2. Removal of bark and possible damage, natural origin using special machines.
3. Splitting wood into chip fraction.
4. Drying wood chips and shavings in drying chambers.
5. Impregnation of raw materials with adhesive and water-repellent substances.
6. Leveling layers (each separately) in conveyor machines and orienting chips in the right direction.
7. Applying layers in the required sequence.
8. Hot pressing.
9. Grinding the outer layers of the plate.
10. Cutting sheets to desired dimensions.
11. After packaging, the building material goes to the retail network.

OSB slab specifications

For convenience and to avoid confusion during construction, the material is divided into strength classes. In European quality standards, OSB classification is divided into 4 categories depending on the level of moisture resistance and strength:

1. OSB 1 - used only for dry rooms, as it is afraid of moisture. It is also suitable for furniture production, provided that it is veneered with precious wood or for packaging or sheathing. It is not a structural material.
2. OSB 2 is a denser and stronger board, but also not moisture resistant. This is already a structural slab that can be used for the construction of walls or partitions indoors with a normal level of humidity.
3. OSB 3 is already a moisture-resistant, fairly dense board. It is used for construction and repair work inside and outside the premises, subject to short-term contact with water.
4. OSB 4 is a particularly durable and moisture resistant building material. Suitable for all types of construction work, up to the cladding of building facades, with or without subsequent coating with a finishing material. Application in continuous contact with water is possible.

There are quality standards for OSB boards for North America, which include 3 categories, but we, for obvious reasons, will not consider them.

Building material advantages

The advantages of OSB compared to good old plywood or chipboard are undeniable. These are a number of advantages that must be voiced:

1. The material is quite smooth, little prone to chipping at the sawing sites.
2. OSB board is strong and flexible, light weight. This will facilitate delivery to the place of work and operations performed with building materials.
3. Moisture resistance (not all types). The material is glued and treated with resins and wax, which makes it resistant to water.
4. Long service life - antifungal additives that make up the impregnation make OSB resistant to fungus and mold. Category 3 and 4 boards will never rot.
5. Along with solid wood, OSB board has an excellent level of sound insulation.
6. Work carried out with OSB does not cause difficulties. It is easy to saw, drill, plan. It holds almost any fastener perfectly.
7. Low price.

OSB plate application

The scope of OSB plates is quite large.

Manufacturers of frame-panel houses widely use building materials for structural parts, up to bearing heavy loads.

The construction industry makes heavy use of OSB as formwork for pouring foundations.

They level floors and ceilings with it, make partitions and full-fledged walls out of it, and also carry out facing work.

OSB plate technical characteristics harmfulness

Adhesives used in the manufacture of OSB may contain hazardous human body substances - formaldehyde, phenol, methanol.

How to recognize the presence of such substances in the bowels of the plate? You can protect your health by buying building materials with formaldehyde emission class E1, where the permissible content of these substances is minimal.

Pay special attention to the smell coming from the OSB board.

If a representative of a trading company tries to assure you of the safety of building materials, and an unpleasant, pungent chemical smell emanates from the surface of the plate, you should refuse to purchase.

OSB plate is undoubtedly worthy of your attention. The properties of the material make it possible to adequately compete with the well-known, old as the world plywood, chipboard.

In some cases, you may spend a little more money than when buying another material, but the durability and strength will pay off with interest. And the question, what is smallpox, is no longer a mystery to you.

For living in any climate, the most comfortable remains wooden house. It perfectly retains heat in frosty winters. In hot areas, the walls do not let the heat in. Unfortunately, wood swells from moisture and is destroyed by insects that sharpen passages in it for their homes or eat. The disadvantages include high cost, flammability. OSB board inherited everything positive traits and got rid of the shortcomings of solid wood.

We install and install OSB boards

Production of plates from several layers of large chips and chips

My friend is a scientist and periodically travels to various international conferences. Returning from another trip, he immediately called me and first of all asked a question about the material that surprised him from long conical pieces of wood of various shades. He couldn't wait to find out exactly what it was.

It turns out that instead of a multi-storey hotel they were settled in cottages. The floor, walls, and ceiling were mostly slabs, the unpainted surface of which showed splinters. At the same time, it felt like you were in a log hut:

• Fresh air;
• optimal humidity;
• slight smell of natural wood;
• the floor is warm, pleasant for bare feet;
• warm, even though it's cold and windy outside.

Most of all, Vadik was surprised at the speed with which the settlement was built. It wasn't there last year. Driving by, he then drew attention to the surveyors making markings.

A friend lived in a cottage, the frame and walls, which are made of OSB boards. They are made from scrap wood. Unlike other similar materials, relatively large fragments glued together with wood resins are used in the production. Composition of binders close to wood conifers.

Unusual abbreviation for familiar material

OSB boards for walls

Vadik's story was about OSB boards. The meaning of the abbreviation in Russian stands for Oriented Strand Board. Large chips and thin long chips are pressed into several layers. In this case, the wood fibers are arranged in a certain direction in several layers. Outer along the pressing direction as the plate passes through the rolls. The middle ones are perpendicular to them.

International designation -OSB. This abbreviation stands for oriented strand board, which makes it possible for the second Russian designation, consonant with English - OSB plate. All three names have uses for slabs. The labeling uses the Latin alphabet.

OSB board collected everything best qualities materials, reducing imperfections to a minimum. Orientation, more precisely the perpendicular arrangement of chips of the inner layers as in parquet board and plywood, eliminates warping when wet.

OSB board due to pressing under high pressure became denser than solid wood and repels water. It is used to sheathe the frame of the house outside and in wet areas.

High environmental friendliness match solid wood

Self-finishing OSB boards

The OSB board consists almost entirely of natural wood. Approximately 2-3% are resins and synthetic wax. Used as an additive boric acid. Only a stove made in violation of technology can emit formaldehyde during combustion, which exceeds the norm for natural wood. The use of material for sheathing the frame from the inside of the house, the manufacture of furniture, including children's furniture, is possible if it belongs to the E1 group, which is indicated in the marking of the plate.

Chipboard has advantages over other building materials used to sheathe frame or brick walls.

1. Thermal insulation qualities are the same as solid wood and exceed wall materials by 5-8 times.
2. Easily worked with woodworking tools.
3. Holds fastener well.
4. High surface adhesion. The OSB board can be mounted on the frame with glue. Spackled, painted. Under the wallpaper, you can not do surface preparation.
5. High flexural and torsion strength. This shows such a test as the resistance of OSB houses in seismically active areas.
6. The material does not contain the usual wood defects in the form of delamination, cracks, knots.
7. The aesthetics and natural originality of the pattern, characteristic of wood, make the use of OSB boards compatible with many modern styles in the design of interiors and facades.
8. Possibility of fast construction. It is possible to cut the slabs and sheathe the frame in a few days.

The walls of frame houses withstand an earthquake

OSB board

Vadik and his colleagues were placed in frame houses not by chance. The city was located in a zone of seismic activity. Once in California and Japan, houses with OSB walls were practically not damaged after strong aftershocks. Concrete and brick walls cracked and even collapsed. Many countries are switching to a practical and safe material.

In areas with cold winters, sandwich panels are mounted on the frame. Their outer layer is made of OSB boards, between them is expanded polystyrene. The low specific gravity of the wall material allows you to work at height without a crane and build a house from the foundation of a full wall in a week.

Use material from pressed wood chips and to create warm attics. Sheets of various thicknesses are laid under the roofing material. This basis allows budget options and glue flexible tiles.

OSB laminated - durable formwork when pouring concrete

On the territory of the Russian Federation, they mainly build houses on strong strip foundations, pour supports and other elements of the base with concrete. Formwork made of plywood and other materials withstands several cycles and collapses.

Waterproof laminated oriented strand sheets are used by builders as formwork 50 times or more. The surface does not swell from moisture. It does not react to the components of the solution, it is easily removed without any traces of erosion.

Laminated panels from OSB sheathe walls in bathrooms and bathrooms. Moisture resistant sheets are covered with a decorative film. The disadvantage of such sheathing is the low vapor permeability of OSB. Enhanced ventilation required.

Application in the interior to create warm floors and walls

In many modern styles, such as eco, natural, Scandinavian elements from natural unpainted wood prevail. Designers use OSB sheets for wall cladding. The floor is made of thick tongue-and-groove slabs, and partitions are built. The texture of the material, its aesthetic appearance make the interior unique and warm.

When facing the facade I use frost and water resistance. OSB is both insulation and facing material. This significantly reduces material costs and time for facade repairs. Panels can be mounted on the walls with glue on flat surfaces and with self-tapping screws to the crate or relatively even masonry.

After my story, Vadik, using OSB paneling, insulated the attic and turned it into a cozy home in cottage style. The floor was made from thick grooved sheets. Sides and top in lacquered.

Sturdy cabinet furniture frames made of OSB

OSB (OSB) plate: application, characteristics, reviews

OSB boards (OSB) are a relatively new high-tech wood-based building material that has already become indispensable in wood-frame housing construction, furniture manufacturing and decoration. Important advantages of OSB (OSB) boards are strength and elasticity.

OSB board - what is it?

Oriented strand board(OSB) quickly took their place among traditional wood-based building materials, along with plywood, chipboard, fiberboard. Universal OSB (OSB - Oriented Strand Board) have a number of competitive advantages. No wonder OSB boards are called "improved wood".

OSB (OSB / OSB - all these abbreviations mean the same material) is a dense pressed three-layer slab of large oriented wood chips. In practice, OSB replaces plywood and chipboard. The name clearly explains the appearance - it is easy to recognize oriented strand boards by elongated chips.

The OSB (OSB) plate consists of 3 layers. In the inner layer of the OSB, the chips are located transversely, in the lower and upper layers - on the contrary, longitudinally. Each layer of OSB board is pre-glued with waterproof resins and pressed under high temperature.

The main raw material for the production of OSB boards is medium- and low-quality coniferous wood, as well as thin wood, which is not suitable for processing in the production of plywood and sawmilling. wood waste do not apply here.

Did you know that the appearance of the first OSB dates back to the late 1970s and is associated with the development of wafer board production in the USA. Starting in 1978, the material quickly began to gain popularity. By 2000, the production of OSB boards in the United States was almost equal in volume to the production of plywood.

OSB plate - dimensions and characteristics

One of the features of the manufacture of OSB (OSB) boards is the elimination of crushed product and small chips. The technology allows you to significantly reduce the amount of glue used in OSB (2-3%), unlike others wood-based building materials .

So OSB boards (OSB) acquire water resistance, resistance to loads and stretching, elasticity. OSB boards by physical properties similar to coniferous plywood, however, the cost of OSB is much cheaper, given the low quality requirements for wood raw materials. Improved mechanical properties, in comparison with conventional chipboard, are achieved by the multidirectional orientation of the chips in the layers of the OSB board. With static bending, the tensile strength of OSB boards with a density of 650-720 kg / cu. m is 40-50 MPa in the longitudinal, 20-25 MPa in the transverse directions. For comparison: birch general-purpose plywood has a static bending strength of 55-60 MPa.

OSB boards keep everything in flat chips beneficial features solid wood, but excludes its defects - delamination, warping, falling knots, internal cracks and voids. OSB (OSB) is distinguished by high uniformity of structure. The standard sizes of OSB board are 2500x1250, 2440x1220 and 3660x1220 mm, with a thickness of 8-40 mm.

OSB ECO boards (OSB ECO) have the highest environmental parameters. OSB-3 is produced on the basis of polyurethane resins with a minimum formaldehyde content. The environmental safety of OSB ECO boards is confirmed by certificates.

OSB boards (OSB) - application and possibilities

The characteristics of OSB boards significantly expand the scope of their application both for internal and outdoor decoration. OSB (OSB) are suitable as a basis for many types of roofing materials. They provide good sound absorption, thermal insulation, high rigidity and are able to withstand heavy snow and wind loads.

Rough floors are assembled from OSB boards, used as a full-fledged flooring. OSB boards(OSB) are perfectly combined with any external cladding for wall cladding. OSB plates are also used for the construction of supporting structures in wall and floors, repeatedly - for removable concrete formwork. In addition to construction and finishing, OSB (OSB) is in demand in furniture production and the packaging industry.

By changing the design of the OSB (OSB), for example, the thickness and number of layers, the size and orientation of the wood particles, the type of binder and consumption, the boards are given various properties that determines their purpose. The surface of the OSB board can be varnished, laminated, tongue-and-groove.

OSB boards are easy to process and hold any fasteners well. OSB fastener retention rate (OSB) is 25% higher than that of softwood plywood and chipboard.

OSB 3 boards: what does the marking mean?

In terms of strength and moisture resistance, four types of OSB boards are distinguished. Marking OSB 1 means that the plate is intended for use in dry rooms, for the manufacture of furniture, decoration and decor elements. OSB 2 is also recommended for conditions with low humidity. OSB 2 boards are suitable for creating load-bearing structures.

Designations 3 and 4 allow the use of plates OSB 3, 4 in wet areas. For OSB 4 boards, a high mechanical load is permissible.

When choosing OSB boards, pay attention to the type of material in terms of strength and moisture resistance - there are four in total. OSB 3 is the most versatile, they are suitable for both indoor and outdoor work.

LLC "Wiener-skif"
Tel.
http://www.vs-fanera.ru

In this article, we will consider the concept, types and application of OSB boards. Currently, this type of material is very popular in the construction and renovation of apartments, houses, cottages and other premises. And so, let's consider everything in more detail:

Oriented Strand Board(OSB, English oriented strand board, OSB) is a multilayer (3-4 layers) sheet, which consists of wood chips glued together with various resins with the addition of synthetic wax and boric acid.

OSB is subdivided into:

OSB-1 - used in conditions of low humidity;
OSB-2 - used in the manufacture of load-bearing structures in dry rooms;
OSB-3 - used for more severe operating conditions (in the manufacture of load-bearing structures in high humidity conditions).
OSB-4 - used in the manufacture of structures that carry a significant mechanical load in conditions of high humidity

OSB classification:

Lacquered - lacquered on one side
-Laminated - covered with laminate (for reusable formwork when concrete work: number of cycles - up to 50)
- Grooved - a slab with groove-toothed ends, from 2 or 4 sides of the slab, for laying over the surface area.

Properties of oriented strand board (OSB):

High strength
-Gives rigidity to the structure of the roof and walls
-Very low moisture swelling coefficient
-Easy and quick installation
- Excellent elasticity
-High aesthetics in interior decoration
-Virtually waste-free use of material
-Light weight of the cladding

Scope of OSB:

wall cladding
-roofing
- draft floors
- overlap
- single layer floors
- I-beams
-sandwich panels

At the moment, the above material (OSB) competes well with materials such as chipboard, plywood, drywall, plasterboard and DSP. When choosing a material for construction and renovation, proceed from your needs and the scope of OSB, as well as listen to the advice of construction professionals.