Osb board is used. OSB board: properties and characteristics, pros and cons of the material, application features. Production of a continuous base for roofing coverings

OSB board- one of the most popular materials for the construction market. Let's figure out what this material is, what it comes in and where it is used.

When studying building materials, we often come across the name OSB board - also OSB, OSB. This abbreviation stands for ooriented strand board, or oriented strand board.

OSB has a reasonable price, good technical characteristics - and is used in both external and internal decoration during construction. But what exactly is this material?

OSB is made from natural wood chips and consists of three main layers. Thin wood chips are processed adhesive composition and are laid longitudinally on the bottom layer, transversely on the inner layer, and again longitudinally on the top outer layer. The finished board is then pressed at a very high temperature, causing the adhesive to harden, turning the material into a thin, dense, uniform surface.

Oriented strand board was invented in America several decades ago, when during the mass construction of frame housing it became clear that neither ordinary wood nor chipboard made it possible to build inexpensive but high-quality houses.

The coating fits perfectly on this surface, which combines the advantages of ceramics and linoleum.

OSB has become a successful intermediate option between conventional wood board and chipboard. Oriented strand material has high strength, but a reasonable price, and at the same time retains fairly good resistance to deformation - due to its transverse-longitudinal structure.

• At the moment, there are many varieties of OSB, differing, among other things, in appearance. Laminated, varnished, corrugated - the material is convenient for execution exterior finishing and beautiful enough to create a budget interior design.
• OSB weighs little, lasts a long time, it is very easy to work with - the material is easy to cut and drill, paint, wallpaper, tiles and plaster fit well on its surface.
• OSB board remains quite resistant to temperature influences and high humidity, and also reduces noise levels in rooms and retains heat.

And of course, all these advantages are complemented by the main advantage of the OSB board - it is inexpensive. There are both very cheap and more expensive options on the market - but even “luxury” material remains affordable from a financial point of view.

Types of OSB and technical characteristics

Boards made by pressing wood chips are divided into several varieties. They differ in their characteristics - with the main parameters being strength, moisture resistance and thickness.

There are four types in total - from OSB-1 to OSB-4. Let's briefly look at the characteristics of each of them.

• OSB-1. This is the least durable variety, which is practically not used in construction and interior decoration. It has a low level of strength and moisture resistance. When immersed in water for twenty-four hours, its swelling coefficient is 25%. The strength indicator for longitudinal bending is 2500 N per square millimeter, for transverse bending - 1200 N per square millimeter.
• OSB-2. The next type of particle board has slightly greater strength - 3500 and 1400 N per square millimeter with longitudinal and transverse forces, respectively. However, the material's resistance to moisture remains low - the swelling level is 20%.
• OSB-3. This variety belongs to more high class. Its strength indicators are the same as those of the previous variety - however, moisture resistance is much higher. With constant contact with water, the material swells by only 15%. OSB-3 is the most popular type of particle board among buyers, since with good performance the material maintains an affordable price.
• OSB-4. This is the highest quality of oriented strand boards - it can even be used when creating load-bearing structures. It has a strength of 4800 and 1800 N per square millimeter at longitudinal and transverse pressure; per day of contact with water, its swelling is only 12%. True, the price of such material is almost twice as high as the cost of the previous OSB board.

In addition to strength and moisture resistance, great value has thickness. It can range from 8 to 26 millimeters. Typically, the thickness indicator directly depends on the class; the stronger the slab, the thicker it is in diameter.

Another important parameter is the flammability index of OSB. Unfortunately, oriented particle boards belong to class G-4 - that is, they are a highly flammable material. This is not surprising - after all, they are made of natural wood chips. To give the material greater fire resistance, manufacturers treat the slabs special compounds and impregnations. However, it is necessary to understand that in the event of a fire, OSB will ignite one way or another - and even the most quality material cannot be completely non-flammable.

Is the material harmful to health?

OSB boards are used not only for external, but also for interior decoration premises. There is still debate about how harmful the material is to health. Opponents of oriented strand boards argue their position by the fact that when producing the material, manufacturers use formaldehyde impregnations. Consequently, during operation, fumes must inevitably be released that are hazardous to human health. But is this really so?

In general, we can say that everything depends on the specific manufacturer and its approach to environmental friendliness of products. OSB boards can have four options for environmental labeling: E0, E1, E2, E3. Despite the fact that E3 class boards contain up to 30 milligrams of formaldehyde emissions per 100 grams of material, and E0 class boards - up to only 6.5 milligrams, extremely acceptable standards In terms of harmful fumes, no variety exceeds.

In addition, most manufacturers - especially Western ones - are trying to further reduce the presence of formaldehyde in their materials, replacing toxic impregnations with safe ones polymer compounds. Many types of OSB are recommended for use in interior decoration - if their toxicity posed a health hazard, the material could only be “approved” for exterior use.

And finally, environmental safety RSD confirm

Recycling waste from the wood processing industry is no longer news. They are used to make plywood, chipboard, fibreboard, laminated veneer lumber, which are actively used in furniture industry. OSB particle boards have gained recognition relatively recently, and now we will describe the characteristics of this product, its varieties, as well as the areas in which it is used.

OSB boards: types and methods of application

Currently, there are four types of oriented strand boards "OSB". These include OSB1, OSB2, 3 and 4. They all have different technical specifications, from which follows the variety of areas of their application.

OSB1 is a board characterized by low material density. As a result, they cannot withstand contact with moisture without suffering serious damage. They are mainly used in the furniture industry.

OSB2 – have greater strength and density compared to the first type. What the first two types have in common is moisture intolerance. Due to the increased density of these boards, they are used for cladding structures in rooms with average humidity levels.

OSB3 has become the most widely used today. It is characterized by high strength and resistance to use in environments with high humidity. However, with prolonged contact with water, it still begins to deform. To use this material outside, it must be pre-treated with paint or appropriate impregnation.

OSB4 is already a level higher than the previous ones. It is ultra-durable and does not suffer from water damage even when used for long periods of time in a humid environment. This material has only one drawback - its price. It is approximately twice the price of OSB3.

OSB (OSB) board - characteristics, size and weight

Another criterion for dividing oriented strand boards is their thickness. This is one of the most important characteristics of OSB boards. After all, this is also not an insignificant factor when choosing materials in certain areas. The length and width (2500x1250 mm) remain standard in OSB sheets, but the thickness ranges from 8 to 26 mm, in increments of 2 millimeters.

Slab sizes

For cladding structures in which there is no intended high load For example, thin sheets up to 16mm thick are used on the slab. With their help they make walls, create a base for soft roof, they cover walls and existing wooden floors. In cases where a load of hundreds of kilograms per square meter is provided, thicker slabs are used. Basically, it is necessary to create a base for the installation of heavy equipment, as well as for flooring and for roofing structures.

Strength and moisture resistance table

Technical characteristics of OSB boards (OSB)

Modern OSB boards can boast quite high performance. This is what made them such a widespread material in construction.
Here is a list of the main properties of oriented strand boards:

• Relatively high strength. They can withstand a weight of several centners, the main thing is to choose the required thickness;
• Lightness and elasticity. Thanks to these two characteristics of OSB can be used when covering various curved surfaces that have a significant radius of curvature;
• Structural homogeneity is a property that ensures the integrity of the slab is preserved when bent. This gives OSB an advantage over plywood, which will delaminate in such cases;
• The advantage of OSB over wood is that it is devoid of instability of shape due to excessive humidity, and the risks of defects appearing on OSB, in comparison with wood, are much lower;
• Oriented strand board is very easy to process using tools such as a drill or saw. This greatly simplifies the work when connecting sheets together;
• Compared to other materials, OSB has very high rates of heat and sound insulation;
• Resistance to chemical and mechanical influences– another plus of this material;
• Special impregnation prevents the formation of mold and mildew on the slabs.

Table of physical and mechanical properties

Working with OSB (OSB) boards and their application

OSB boards can be used in many areas of construction due to their technical characteristics. This building material is primarily used to construct the walls of frame buildings and to create partitions between rooms. Also, using oriented strand boards, they install flooring and level the floors that were installed earlier. In addition, OSB acts as an excellent base for certain types of roofing materials.

OSB, regardless of their area of ​​application, have an almost identical method of fastening. They are simply fixed using self-tapping screws onto a metal or wooden frame.
In the case when you need to install a floor covering using OSB, the slabs are attached to the joists, which must be pre-installed. The supporting structure for the manufacture of the roof can be a wooden sheathing. To cover walls with OSB boards, special metal profiles must first be installed on the wall, and the boards themselves must be mounted on them. To guarantee the indestructibility of the structure, the step when installing profiles, joists or sheathing should not exceed 400 millimeters.

As mentioned above in this article, OSB boards are very easy to process according to your wishes. Processing them is possible even using an ordinary hacksaw, but this will take a lot of time and effort, so we advise you to use an electric jigsaw. It should be equipped with a wood saw with a large tooth, so you will speed up the process of cutting the slab as much as possible.

Well, the obvious fact is that OSB boards are simply irreplaceable for builders. With their help, you can build a full-fledged frame house, including carrying out interior work - installing floors and walls. Such dwellings are built as quickly as possible and have a very long service life.

Video

Oriented Strand Board (OSB, OSB, OSB - short for English expression oriented strand board) is a modern structural and finishing material that used for various works.

OSB was conceived as inexpensive alternative plywood and, because the ability to use non-commercial wood to make chips reduces the cost finished products.

• what is OSB;
• what types of oriented strand boards are there;
• which regulatory documents regulate the quality and characteristics of OSB boards;
• what sizes do chip OSBs have, and does their price depend on this;
• how much does this material cost?
• advantages and disadvantages compared to other structural and finishing materials;
• What is OSB used for?

As part of the OSB - several layers thin (0.5–1.5 mm) of various shapes and sizes, oriented within each layer. Dimensions wood shavings for OSB they are 1–20 cm in length and 1–50 mm in width. You can read more about how chips are produced.

Clear orientation in longitudinal or transverse direction No However, the majority of all large wood chips are oriented in the desired direction with a tolerance of up to 60 degrees (in most cases, the rotation relative to the orientation does not exceed 30 degrees).

Due to the fact that most large chips are oriented in one direction, layer becomes enlarged transverse or longitudinal rigidity and strength.

All layers are bonded together using a mixture of various natural and synthetic adhesives, with each manufacturer using own recipe and keeps it secret.

As a result all layers, combined into a single carpet, react together to any bending or twisting effort, which provides high rigidity and strength compared to chipboard.

In this case, oriented strand board is inferior to plywood in these parameters, because in plywood each layer consists of a whole sheet, so its strength and rigidity are much higher. All sheets correspond to the size accepted at the enterprise.

Regulatory documents

In the Russian Federation, characteristics of OSB regulated by GOST 32567-2013, which you can view at this link.

The basis of this document was international standard EN 300:2006 “Oriented Strand Boards (OSB) – Definitions, classification and specifications”. Therefore, slabs that comply with GOST will also comply with the international standard.

The document applies only to the characteristics of the finished product, allowing the manufacturer to independently choose the most suitable technology. About general technological aspects we talked about it in the article.

Types of oriented strand sheets

GOST 32567-2013 and the international standard EN 300:2006 divide oriented strand boards (OSB shown in the photo) into strength classes:

1. OSB-1 (OSB-1).
2. OSB-2 (OSB-2).
3. OSB-3 (OSB-3).
4. OSB-4 (OSB-4).

In addition, all types of slabs are divided By appearance of the front side:

• unpolished;
• polished,

and also on the release of formaldehyde into the air (emission):

1. E0.5.

Strength and water resistance classes and application features

The OSB-1 class includes a material that is unsuitable for creating load-bearing structures and has minimal moisture resistance. It is used for finishing inside dry rooms, sheathing various panels. In addition, it applies for furniture making.

In terms of rigidity, OSB-1 is inferior to gypsum plasterboard and fiberglass board, so it is necessary to reduce the distance between the sheathing parts, otherwise the sheathing will be pressed through.

The OSB-2 class includes more rigid and durable boards that can act as load-bearing elements.

For example, due to its low price, OSB-2 of various thicknesses is often used for laying on subfloors.

However, they too not suitable for use in high humidity conditions, therefore they are not used to make external cladding of buildings or SIP panels.

The OSB-3 class includes slabs that differ in their technical characteristics - durable and moisture-resistant elements that have found application as structural. OSP-3 different sizes often used as a subfloor, because they successfully replace floorboard, and their price is noticeably lower.

In terms of strength, particle board OSB-2 and OSB-3 are comparable, so the main difference is the minimal ability to absorb moisture, due to which expansion due to swelling is also minimal.

Moisture-resistant oriented strand boards class OSB-4 of all sizes differ highest price, maximum rigidity and strength, therefore they are used only as structural, and in areas with maximum load.

In addition, OSB-4 has a minimal ability to absorb water, thanks to these characteristics they have the most positive reviews and are used in the production of SIP panels, as well as as external cladding of frame houses.

Type of front surface and ends

The first experience of using oriented strand boards of different sizes - moisture-resistant OSB for exterior use and conventional ones for interior decoration - showed them high efficiency and significant superiority over other materials in terms of price/quality ratio.

As a result, there was a demand for higher quality products, with an even and relatively smooth surface.

This is how the first ones appeared polished slabs Sanding preserves the unique surface pattern, but eliminates all major irregularities. In addition, the tolerance for thickness deviation for sanded products is much lower and amounts to 0.3 mm, while for unpolished products a deviation of 0.8 mm is acceptable.

Most slabs have straight ends, but OSB, designed to create a continuous flooring, has locks are cut out at the ends, which allow you to lay sheets without gaps.

These oriented strand boards are called tongue and groove. You can read more about tongue and groove slabs.

Manufacturers also offer polished slabs, varnished or laminated.

The front side of the former is impregnated with waterproof and wear-resistant varnish, while the latter have a thin wear-resistant film fused to the front side. Typically, such coatings are applied to material intended for finished flooring and external waterproof finishing.

3 formaldehyde emission classes and environmental friendliness

To reduce costs and increase the strength of OSB, manufacturers forced to use adhesives containing formaldehyde. After hardening and polymerization, such adhesives have fairly high resistance to water and good strength.

The use of adhesives that do not contain formaldehyde either does not provide the required strength or greatly increases the cost of the finished product, depriving it of its main advantage - low price compared to plywood.

Therefore, it was necessary to divide OSB into classes based on formaldehyde emissions. Minimum class E0.5 allows up to 4 mg/100 grams of OSB. At the same time content of a poisonous drug in the air for any time should not exceed 0.08 mg/m3.

For class E1 formaldehyde content should not exceed 8 mg/100 grams, and the maximum permissible the content in the air is 0.124 mg/m3.

For class E2 the formaldehyde content in 100 grams of OSB should not exceed 30 mg, and the emission should not exceed 1.25 mg/m3.

At the same time, the average daily concentration of formaldehyde in residential premises should not exceed 0.01 mg/m3, as stated in Appendix 2 of SanPiN 2.1.2.1002-00 “Sanitary and epidemiological requirements for residential buildings and premises.”

You can read this document by following the link. Even the conditionally safe class E0.5 releases an amount of this toxic substance that exceeds the standards, so OSB cannot be used For interior decoration residential premises without ventilation, since it can still cause sufficient harm to the human body without observing these safety measures.

Dimensions and weight

Single standard that is standard sizes OSB doesn't exist, but most manufacturers adhere to following parameters length and width in mm:

• 1250x2500;
• 1200x2400;
• 590x2440.

There are other sizes of OSB-1, OSB-2, OSB-3 and OSB-4. If you prefer something made to order instead of purchasing finished products, then they can make you any size, up to a length of 7 meters.

Sheet thickness ranges from 6 mm to 25 mm in increments of 2 or 3 mm. However most popular slabs with a thickness of 8–16 mm are considered. Also quite often on the Russian market there are OSB thicknesses of 9 mm, 10 mm, 12 mm and 15 mm, their cost usually increases according to the increase in their parameters.

The weight of the sheet depends on its thickness and size, because the average density of any type of board is the same and is 600–700 kg/m3. Therefore, the weight of OSB with dimensions 1220x2440 mm is 12.5 kg with a thickness of 6 mm, with a thickness of 9 mm and 12 mm it will be correspondingly greater, and with a thickness of 22 mm it will be 42.5 kg.

Marking

The general principle of marking OSB produced in Russia and abroad is the same. On one side indicate:

• variety;
• dimensions (length, width, thickness);
• formaldehyde emission class;
• type of front surface;
• manufacturer's name.

If you purchase OSB, intended for sale in America and Europe, then you need to be aware of the differences in labeling. The variety may not be specified in the same way as in EN 300:2006, but in accordance with CSA O325, that is:

• W – oriented strand board for sheathing interior walls dry rooms;
• 1F – rough floor covering;
• 2F – OSB for finishing coating gender;
• 1R – material for roof sheathing without creating support at the edges;
• 2R - the same, but with support at the edges.

In addition, after the letter indicate two-digit number, which means the maximum allowable distance between supports in inches, for example, 1F18.

If OSB is suitable for various applications, then all tolerances are listed, for example, 1F18/2R20. Moisture resistance with this marking is also indicate separately:

1. Interior– an analogue of OSB-1, with its technical characteristics suitable for use only in dry rooms.
2. Esposure Type Binder– a board with average moisture resistance. Can be used in rooms with slightly increased humidity levels, and after treatment with protective preparations can also be used for exterior decoration.
3. Exterior Bond– a material with maximum moisture resistance, suitable for any application even without additional treatment with hydrophobic agents.

Besides, may meet and other inscriptions:

1. SHEATHING SPAN– the distance between the axes of the joists in inches, if the numbers are indicated as a fraction, then the first value refers to the roof joists, the second to the joists interfloor covering. If the number 0 is indicated instead of the second value, then the oriented strand board is only suitable for use on the roof and cannot be laid on interfloor floors.
2. THIS SIDE DOWN– label bottom side. On outside OSB with this inscription has small grooves to drain water, so improper installation will lead to the fact that during rain, water will not drain effectively and the slab will begin to swell.
3. STRENGTH AXIS THIS DIRECTION– this inscription is always accompanied by an arrow that points in the direction perpendicular to the joists. In other words, OSB with such an inscription must be laid so that the arrow is rotated 90 degrees relative to the joist.

The marking of laminated and varnished boards is not specified in generally accepted documents, so each manufacturer designates this type of material in its own way.

The same applies to wood-oriented boards with locks on the ends.

Price

Price of slabs depends on:

• strength, water resistance and formaldehyde emission classes;
• dimensions (length, width, thickness);
• sanding, varnishing, laminating or locking the ends;
• manufacturer.

The most popular strength class is OSB-3 and emission class E1 - it is quite difficult to find OSB particle boards of other emission classes, so most often they are made to order, so the price is discussed individually.

It is also worth noting that with the same length and width parameters, but with different thicknesses OSB - for example in 9mm, 12mm, 15 or 18 mm, the price for them will also differ.

Technical characteristics and comparison with other finishing materials

Here main competitors oriented strand boards:

• plywood (No. 1);
• Chipboard (No. 2) (link to chipboard);
• Fiberboard (No. 3);
• GKL (No. 4);
• glass-magnesite sheet (No. 5);
• smooth slate (No. 6);
• DSP (No. 7).

In parentheses are the numbers assigned to them, in the order in which we included them in the table where you can compare main parameters and technical characteristics, that is:

• density;
• the possibility of use as a structural element, that is, subflooring, roofing, etc.;
• thermal conductivity;
• vapor permeability;
• flammability (ability to sustain combustion);
• toxicity under normal conditions/in case of fire.

Density finishing material affects the weight of the sheet and can make it difficult to climb to the upper floors and install. Therefore, the low density of OSB is a serious advantage, which is further enhanced if we consider the possibility of using oriented strand boards as a structural material.

With low OSB density has high strength, so you can do from it:

• rough and finished floors in residential premises;
• roof decking;
• steps on stairs;
• removable formwork;
• SIP panels;
• various fences.

By thermal conductivity OSB is comparable to plywood and superior to most finishing materials, second only to DSP and fiberboard. However, in such an important parameter as vapor permeability, it is inferior to most competitors.

Because of this, in houses sheathed with OSB, it is necessary to take special measures to remove moisture and protect against condensation. For more information about the effect of vapor permeability on the humidity in the house and the condition of the walls, read the article (Use of OSB).

Oriented Strand Boards belong to the class of flammable fire hazardous materials.

Manufacturers are trying to reduce the level of flammability using pyrophobic preparations, but even such boards are superior to plywood and wood in this parameter.

In addition, high strength finished slabs manages to get only using formaldehyde-based adhesives, which is a strong poison, and therefore OSB is not environmentally friendly.

Therefore, covering the internal space with OSB sheets, although inexpensive, leads to exceeding the maximum permissible concentration of this substance, which negatively affects well-being and health.

However, all the significant disadvantages of this material can be neutralized by proper use. After all, even in E2 class slabs, the rate of formaldehyde release is so low that any ventilation or periodically opened window can easily cope with it.

But you still need to know - during a fire, OSB emits not only carbon dioxide and carbon dioxide, but also many toxic substances posing a threat, causing harm to health.

Installation of systems fire safety, including smoke detectors, is useful in any home. After all, during a fire, the main danger is not toxic substances, but smoke, which makes it difficult to leave the room.

In addition, many pieces of furniture and household appliances emit toxic substances during a fire. large volume. That's why in case of a small fire OSB sheathing poses no threat, if the fire safety systems work properly and extinguish the fire. If the systems do not work and the fire gains strength, then there will be enough smoke and toxic substances even in houses without such cladding.

Video on the topic

Briefly and concisely about the main properties, advantages and disadvantages, benefits and possible harm OSB in the presented video:

Conclusion

OSB boards are a good and modern structural and finishing material that has both advantages and disadvantages. However, all the disadvantages are compensated by the correct use of boards, and the advantages make OSB more attractive than other materials.

After reading the article, you learned:

• what is OSP, and how to decipher this abbreviation;
• about the characteristics and properties of OSB boards;
• what is the difference, for example, between OSB-2 and OSB-3 and other types of oriented strand boards;
• about the price of chip OSB;
• about the features of their use and other parameters.

For living in any climate, a wooden house remains the most comfortable. It perfectly retains heat in frosty winters. In hot areas, walls keep the heat out. Unfortunately, wood swells from moisture and is destroyed by insects that make passages in it for their homes or eat. Disadvantages include high cost and flammability. OSB board inherited everything positive qualities and got rid of the disadvantages of solid wood.

We install and install OSB boards

Making slabs 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 made from long conical pieces of wood that surprised him various shades. He was eager to find out in detail what it was.

It turns out that instead of a multi-story hotel, they were accommodated in cottages. The floor, walls and ceiling were mostly made of slabs, with splinters visible on the unpainted surface. At the same time, it felt like being in a log cabin:

• fresh air;
• optimal humidity;
• light smell of natural wood;
• the floor is warm, pleasant for bare feet;
• It’s warm, although it’s frosty and strong wind outside.

What surprised Vadik most was the speed with which the village was built. Last year he wasn't there. Driving past, he then drew attention to the surveyors making markings.

A friend lived in a cottage whose frame and walls were made of OSB boards. They are made from waste wood. Unlike other similar materials, relatively large fragments glued together with wood resins are used in production. The composition of the binders is close to that of coniferous wood.

Unusual abbreviation for familiar material

OSB boards for walls

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

International designation – OSB. This abbreviation oriented strand board stands for, which makes it possible for a second Russian designation, consonant with English - OSB board. All three names are used to refer to slabs. The Latin alphabet is used for marking.

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

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

High environmental friendliness corresponds to solid wood

Self-finishing of OSB boards

The OSB board consists of natural wood almost completely. Approximately 2-3% are resins and synthetic waxes. 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 the material for cladding the frame from the inside of the house, making furniture, including children's furniture, is possible if it belongs to group E1, which is indicated in the labeling of the slab.

Wood chips have advantages over others building materials, used to cover frames or brick walls.

1. Thermal insulation qualities are the same as solid wood and exceed wall materials by 5 - 8 times.
2. Easily processed with woodworking tools.
3. Holds the fastener well.
4. High surface adhesion. The OSB board can be mounted on the frame using glue. Putty and paint. There is no need to prepare the surface for wallpaper.
5. High bending and torsional strength. This shows such a test as the durability of OSB houses in seismically active zones.
6. The material does not contain the usual wood defects such as delamination, cracks, or knots.
7. The aesthetics and natural uniqueness of the pattern, characteristic of wood, makes the use of OSB boards compatible with many modern styles in the design of interiors and facades.
8. Opportunity rapid construction. You can cut the slabs and sheathe the frame in a few days.

The walls of frame houses can withstand earthquakes

OSB board

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

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

Material from pressed wood chips is also used to create warm attics. Sheets of various thicknesses are laid under the roofing material. This basis allows you to do budget options and stick on flexible tiles.

Laminated OSB - durable formwork when pouring concrete

On the territory of the Russian Federation, houses are mainly built on strong strip foundations, pour the supports and other foundation elements with concrete. Formwork made of plywood and other materials can withstand several cycles and then collapse.

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

Laminated OSB panels cover the walls in bathrooms and bathrooms. Moisture-resistant sheets are covered with decorative film. The disadvantage of such cladding is the low vapor permeability of OSB. Increased ventilation is required.

Application in the interior to create warm floors and walls

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

When cladding the facade I use frost and water resistance. OSB is both an insulation material and a facing material. This significantly reduces material costs and time for facade repairs. Panels can be attached to walls using glue on flat surfaces and screws to the sheathing or relatively flat masonry.

After my story, Vadik, using OSB panels, insulated the attic and turned it into a cozy cottage-style home. The floor was made from thick tongue and groove sheets. The sides and top are varnished.

Durable cabinet furniture frames made of OSB