How to sheathe a frame house outside osb. Wall decoration with osb slabs and roofing work

It is desirable that the installation of OSB on the walls is carried out by specialists. OSB (oriented strand board) is a material that has gained popularity in the field of construction and home decoration. It has a lot of advantages that allow it to be used in exterior finish dwellings, in the lining of internal walls and the design of partitions in the process of redevelopment. In view of the increasing demand for this material, it is worth considering what are OSB benefits plates and where they are used, as well as what finishing methods exist for this material.

Advantages and disadvantages of OSB boards

According to builders, wall decoration with OSB boards has a number of advantages:

1. Compared to other materials sold in sheets, OSB walls are relatively inexpensive.
2. The method of manufacture assumes resistance to damage, which ensures a minimum of defects during production, transportation and after installation.
3. They are lightweight, so the installation of plates on the walls does not carry a large load on bearing structures. Also, due to the lightness, these plates are easy to carry from place to place and install with your own hands.
4. These plates look attractive on their own. There are several options for additional decorative finishes.
5. This material is resistant to moisture, decay, fungal infection and is of little interest to insects.
6. The strength of the structure of the plates does not prevent them from drilling or processing in any other way.

All these properties make the material suitable for external and internal works. However, when choosing, you should pay attention to the reputation of the manufacturer. For the sake of economy, some firms do not comply with technology, so their products turn out to be of poor quality from an environmental point of view. Such boards can emit harmful substances. Any OSB product does not allow moisture and steam to pass through, so in rooms with such a finish, you should take care of decent ventilation.

Areas of use

There are two main ways to work with OSB boards. Firstly, this is the rough cladding of the main wall inside or outside. This option allows you to reduce the number of joints, align the wall and make it more durable. To achieve such results, it is worth considering a number of points:

1. The fastening of the material is carried out after 30 cm in the intermediate sections and twice as often at the joints.
2. The outer edges are attached to the wall every 10 cm at a distance of at least 10 cm from the end of the sheet.
3. For ventilation, gaps are left between them, which are then filled with sealant. This is one of the main ways to provide ventilation for exterior walls.
4. When finishing a wall of OSB boards, you should take care of protection from wind and excessive moisture. Taking into account the peculiarities of the material for working outside, it is worth using a superdiffusion membrane; foil polyethylene is useful for finishing inside.

Other nuances in the question of how to sheathe a wall with OSB boards are discussed in the following video:

Secondly, to change the layout of the rooms, you can from the OSB. For this, installation on wooden or metal profiles is used. Drywall is fixed in a similar way. The difference between OSB partitions is the resistance of this material to deformation, therefore, such interior elements do not bend under their own weight and are more reliably protected from cracks and other damage.

Since wood is included in the basis of the material in chip fragments, in the manufacture of OSB boards they are covered with a special composition. It includes resins, wax or paraffin. It not only has a bonding effect, but also gives the surface evenness and smoothness, so additional finishing of OSB walls is associated with additional difficulties. Firstly, the outer layer does not differ in adhesive properties. Secondly, some components contain fat and other substances that can seep through the outer Finishing work and spoil the final look, so you should consider options for decorative processing of the material before finishing the OSB walls inside the house.

Paint or varnish finish

Wall painting or varnishing is one of the budget methods decoration of the walls of the rooms. But in order for the layers to lie evenly, and in the future there will be no unpleasant surprises, it is worth considering a number of points.

First you need to inspect all the places where the plates are attached for not fully hammered nails or twisted screws. Such minor flaws can lead to the manifestation rusty spots through the paint. In the case of nails, it is worth using a hammer, because when working with a hammer, not only will there not be a sufficient result, but the wall cladding will also suffer.

If it is planned that the internal walls will be painted, it is worth using an acrylic sealant to process the joints, since the paint does not fit well on the silicone look.

An obligatory stage of work is the surface. It will provide the material with great adhesive properties. In addition, the layer will lie more evenly on the prepared surface and give the appropriate effect. After the first coat of primer, it is necessary to pay attention to the condition of the pile. After such processing, it can rise, and the wall will lose evenness.

To correct this shortcoming, the surface must be treated with sandpaper and another coat of primer applied. After that, you can finish the walls of the room with varnish or paint. Depending on the humidity of the room, you can use the option on alkyd or acrylic. In some cases, suitable water-based paint. Some builders recommend acrylic lacquer for walls.

For reliability and aesthetic beauty, it is recommended to apply the coating in 2-3 layers.

Preparing OSB walls for wallpapering

Wallpaper is considered the most popular option for wall decoration, so they are used in rooms with walls finished with OSB boards. Sometimes such a need arises in the process of redevelopment of space. So, before you make a partition, you should make sure that it is in harmony with the rest of the interior.

It can be used if there is a need for the finished wall to become universal for any kind of application. decorative coating. With this type of wall processing, you should pay attention to some features:

1. Putty is applied to a clean surface. The presence of dust, dirt or traces of other building materials on the wall can adversely affect the quality of the coating, so it is worth washing the wall well before applying the putty composition.
2. It is worth paying attention that the heads of nails and self-tapping screws are sunk as deep as possible, and it is better to remove the top layer with sandpaper. The surface for puttying should be slightly rough.
3. The joints between the plates are best treated with nitro putty. This will ensure evenness and strength. Alternatively, bodywork putty can be used, since its properties are designed for a moving object. In this regard, the composition has not only lightness, but also great connecting properties, and it does not collapse on the wall for a long time. After finishing preparatory work putty layer is applied.
4. After applying the composition, you can proceed to the primer of the surface.

This option is convenient because now you can use any primer over the primer layer. decorative material without regard to the features of OSB plates.

OSB boards are a universal material for wall cladding of a house or finishing rooms inside it. This raw material is used both to strengthen walls and create partitions. It is quite durable, lightweight and resistant to mechanical stress, moisture, fungus and insects.

In order for this coating to last as long as possible, it is worth considering several factors before fixing the OSB. This is especially true for the distance between nails and screws, as well as the location of the joints. The appearance allows the use of OSB boards without any decorative treatment. However, they can be puttied, painted, varnished or prepared for wallpaper. Subject to technology, the result will be smooth walls, which will be the basis for any interior and will delight its owner for many years.

Exterior wall cladding is one of the final stages of construction frame house. And here the choice of material is of great importance: the microclimate in the premises, the mechanical strength of the walls, the reliability of protection against moisture and cold depend on this. In addition, sheathing serves as the basis for finishing materials, and in some cases acts as finish coat and is responsible for the aesthetic appearance of the building.

Sheathing gives the frame of the structure a certain rigidity and takes on part of the load. This means that one of the main criteria is the mechanical strength of the material in bending and compression, the absence of shrinkage during operation. The walls must retain their original shape for years, regardless of the surrounding conditions. In addition, the sheathing must be resistant to moisture, sudden changes in temperature, and the effects of microorganisms.

Next, you need to pay attention to the ease of installation of the material and its ductility during processing. If you plan to sheathe with your own hands, this aspect is of great importance, because it depends on how much effort and time it will take to work. The material should be easy to cut and drill, but at the same time keep the density on the cuts, not crumble, not crack. And, of course, it must be durable so that you do not have to change the skin every 10-15 years.

Material selection

There are several types of materials that more or less meet the specified requirements: moisture resistant plywood, DSP, OSB, edged board, fiberboard. They have similar characteristics and are widely used in frame construction. To make a choice, it is worth familiarizing yourself with the main properties and features of each of them.

Oriented Strand Board (OSB)

OSB panels rightfully belong to the most popular materials in the arrangement of frame structures. They consist of layers of glued wood chips and chips, and in the outer layers the fibers are arranged longitudinally, inside - transversely. Synthetic resins and wax are used to bind the chips, giving the finished boards water-repellent properties.

Standard production provides for the production of these plates in several categories:

• OSB-1 is intended exclusively for interior decoration of dry rooms with reduced mechanical stress;
• OSB-2 is used in the installation of load-bearing structures in rooms with low humidity;
• OSB-3 is a moisture-resistant board of increased rigidity, used in the installation of load-bearing structures indoors and outdoors.

In terms of quality-functionality-price, OSB-3 is the most optimal, and this material is widely used in private construction for wall cladding, the manufacture of load-bearing partitions, and reusable formwork when pouring concrete structures. The plates lend themselves perfectly to grinding, cutting, drilling, tightly hold nails even at a distance of 6 mm from the edge. Such sheathing can simultaneously serve as a decorative coating for walls, it is enough just to treat it with waterproof varnish or paint it.

OSB Advantages:

• dense structure prevents delamination and splitting of the material during processing and during operation;
• plates have elasticity and high strength, perfectly resist vibrations, compressive loads, various deformations;
• the material is resistant to weathering and temperature extremes;
• OSB is resistant to microorganisms, insects and rodents do not like it.

Flaws:

• very low vapor permeability;
• combustibility;
• the content of toxic compounds (phenol and formaldehyde).

Main characteristics

Prices for OSB (Oriented Strand Board)

OSB (Oriented Strand Board)

Cement particle boards (DSP)

This material is a compressed mass of M500 cement and shavings (usually softwood). A standard plate has three layers: the outer ones are made of small chips, the inner one is made of large chips. In addition to the main components, the composition contains hydration additives, mass fraction which does not exceed 3%. DSP is characterized by resistance to moisture, high strength, long service life. Plates are widely used in private construction, industrial, for work inside and outside the premises.

When sheathing the frame, such plates serve as an excellent basis for cladding, decorative plaster, painting, as they form a perfectly flat and smooth surface. The material endures 50 cycles of complete freezing and thawing without loss of its characteristics; in the future, the strength of the plates decreases by about 10%. Among wood-based materials, DSP is the leader in terms of environmental and technical indicators.

Advantages:

• very low hygroscopicity;
• resistance to mold and other microorganisms;
• DSPs are not damaged by insects and rodents;
• the material does not emit toxic substances;
• low thermal conductivity;
• Fire safety.

Flaws:

• mechanical processing of plates requires considerable effort;
• DSP has a large weight compared to other materials;
• when cutting and drilling plates, a lot of fine dust is formed, so you need to work in a respirator;
• high price.

Specifications

Fibreboard (Fibreboard)

The material is sheets of pressed shavings, usually softwood. During the pressing process, the raw material is strongly heated, which makes it possible to achieve maximum density without the use of adhesive compositions. Due to this, fiberboard belongs to environmentally friendly materials, and therefore is suitable for outdoor use and for finishing residential premises. The shavings contain natural resin, which acts as an antiseptic and protects the plates from mold.

In terms of strength, fiberboard is noticeably inferior to natural lining and OSB, but it surpasses them in terms of heat and sound insulation properties.

Windproof plate "Beltermo"

Now on construction market Fiberboards are represented by insulating boards of several famous brands, the most popular of which are "Beltermo" and "Isoplat". For sheathing a frame house, plates with a thickness of at least 25 mm are used, thinner sheets are used indoors.

Advantages:

• light weight;
• low thermal conductivity;
• ease of installation;
• the material does not exfoliate and does not crumble;
• high vapor permeability;
• resistance to moisture and microbial attack;
• the absence of harmful substances in the composition.

Flaws:

• high price;
• a long stay without a decorative finish causes slight deformation of the sheets;
• the outer skin of fiberboard requires the presence of spacer braces in the frame or a rigid inner skin.

Specifications

Prices for wood fiber boards (MDF)

Fibreboard (Fibreboard)

Gypsum fiber sheets (GVL)

GVL consists of pressed gypsum reinforced with cellulose fibers. Due to its high strength, the material is suitable for creating load-bearing surfaces, therefore it is widely used in frame construction. It differs from drywall in greater density, uniformity, and the absence of a cardboard shell. In terms of frost resistance, soundproofing properties, as well as resistance to moisture and combustion, GVL also exceeds gypsum boards by several times.

Installation of GVL is carried out in a frame and frameless way. For external wall cladding, the first option is used, where the sheets are fastened to the bearing racks with self-tapping screws. The material is easy to cut and drill, and, despite its heavy weight, is quite easy to install. Such a sheathing serves as an excellent basis for finishing with tiles and decorative plaster.

Advantages:

• low hygroscopicity;
• vapor permeability;
• the absence of toxic compounds in the composition;
• fire safety;
• high heat and soundproof properties.

Flaws:

• lack of plasticity and brittleness when bending the sheet;
• great weight.

Specifications

Plywood

Plywood is made by gluing thin sheets of veneer of various types of wood (most often coniferous and birch). Sheets are stacked perpendicular to each other relative to the location of the fibers, which contributes to an increase in mechanical strength material and increase resistance to deformation. For exterior cladding frame walls plywood of increased moisture resistance is used, which has the FSF marking. The thickness of the sheets should be from 9-10 mm, thinner material will not provide the necessary rigidity to the frame.

The grade of plywood does not really matter for sheathing, and the cheapest unsanded 4/4 grade boards can be used.

FROM outer side all defects will be hidden under a hinged facade, so there is no point in overpaying. Subject to the sheathing technology, the plywood coating will serve for years without losing its qualities.

Advantages:

• high flexural and compressive strength;
• moisture resistance;
• wear resistance;
• ease of processing and installation;
• frost resistance.

Flaws:

• combustibility;
• content of formaldehyde resins;
• tendency to chipping.

Specifications

plywood prices

Edged board

The use of edged boards for sheathing is the most economical option. Wood is an environmentally friendly material, affordable, easy to install. Boards can be filled not only horizontally, but also at an angle of 45-60 degrees. To save material, boards can be fastened in increments of up to 30 cm, although most often the sheathing is made solid. This design perfectly strengthens the frame and is a ready-made base for a ventilated facade.

In order for the sheathing to be reliable, the boards are chosen with a thickness of at least 25 mm, they can be tongue-and-groove, for greater docking density. Do not use raw lumber: in the process of drying, the wood will begin to warp, deformations of the finish coating may appear.

Advantages:

• wood does not emit harmful substances and has excellent vapor permeability;
• boards are easy to process;
• work does not require large financial costs.

Flaws:

• combustibility of the material;
• wood is susceptible to damage by insects and microorganisms;
• fitting and fixing elements takes a lot of time.

Edged board prices

Cladding technology

Installation of plates on the finished frame is carried out according to the same technology, regardless of the type of material. Simultaneously with the cladding, vapor barrier and wall insulation are performed, and finishing can be done immediately upon completion of construction or after some time. Consider the installation technology using the example of frame sheathing with OSB boards.

Sheathing can be done in two ways - with and without crate. In the first case, the vapor barrier layer is located between the frame and the OSB, in the second - on top of the skin. The batten option is used in cases where the OSB serves as the basis for plastering, painting or tiling, the second method is used, as a rule, when installing a ventilated facade. Otherwise, there are no significant differences.

Step 1. Start trimming from the very corner. The first sheet of OSB is applied to the frame posts so that the bottom edge completely overlaps bottom harness at home. Be sure to control the horizontal level. The plate itself is also recommended to be placed horizontally, and not vertically - this provides the structure with greater rigidity. For fixing the material, galvanized self-tapping screws with a length of at least 50 mm are used. About 10 mm must be retreated from the edge of the OSB, the fastening step along the perimeter of the sheet is 15 cm, in the center - 30 cm.

Advice. For strong fixation of the plates, the length of the hardware must exceed the thickness of the OSB by at least 2.5 times. If the self-tapping screw enters the frame beam by less than 30 mm, under the influence of loads, the sheathing will begin to break away from the supporting base.

Step 2 The next plate is installed next to the first, leaving a gap of 2-3 mm for thermal expansion. In the same way, they set the horizontal level, screw the sheathing to the frame guides. The joints of the plates must necessarily fall in the middle of the rack, only in this case the fastening will be as reliable as possible. The rest of the plates are fixed in a circle, leaving open areas for doorways.

Step 3 The second row of sheathing must be mounted with dressing of vertical seams. Between the lower and upper plates, the same gap of 2-3 mm is observed. When sheathing openings, whole sheets should be used, and not trimmings - the fewer joints, the tighter the sheathing. Cutouts in the sheets are made with a jigsaw or circular saw, having made pre-marking with an accuracy of a millimeter. The edges of the cuts after the installation of the slab must ideally coincide with the lines of the openings.

Step 4 The top plates are installed so as to completely cover the top trim. If the house has two floors, the interfloor piping should be closed by the middle of the slab - in no case can the OSB be joined on this line.

Gallery 1. An example of the construction of a one-story frame house with OSB trim

The facade is the calling card of any country house. Despite the huge selection of modern and proven facade finishing options, users of our portal are not afraid to experiment.

The experience of a FORUMHOUSE participant with a nickname is interesting Victor Banev, who decided to improve old dacha, by making the facade of OSB (or OSB, oriented strand board) with further imitation of the fachwerk layout on them.

OSB durability

Usually, everyone who decides to do something like this is primarily concerned with the question - what will happen to the facade in 3-5 years if it is sheathed with OSB.

Someone thinks that the plates will swell, because. OSB is not finishing material designed for outdoor use. Someone believes that such a plating option is possible and, moreover, optimal in terms of reducing financial costs and the possibility of self-repetition.

Victor Banev FORUMHOUSE User

Whether or not to use OSB on the facade - opinions differ. I decided that the game is worth the candle in terms of speed, ease of installation and low cost of such a facade. I will only note that the facade ofOSB is an economy option for thrifty summer residents. To finish a capital structure - a cottage, more weatherproof materials should be used.

Looking ahead, let's say that the service life of the facade of OSB-plates has already entered the third year, and the following photo clearly demonstrates how it looks.

Pie wall with OSB

The result is impressive, and now let's move on to practice. There is an old uninsulated dacha measuring 6x8 meters. Outer skin- "inch" board. On top of the boards - painted hardboard. Place of alteration - Leningrad region, i.e. an area with higher humidity than Moscow, with frequent rains, fogs and short summers.

It is required - to insulate the building from the outside and make beautiful facade. The budget is minimal. This means: work without hired workers, using relatively inexpensive materials and technology that can be done by two people. Also interesting is the user's way of thinking when choosing ways to finish the facade.

Victor Banev

I don't like siding on the front. Pall. Block house is too expensive. A well-established variant using DSP ( cement particle board) also disappears for further staining and imitation of fachwerk. Expensive and, due to the large weight, it is difficult to lift the sheets, and even more so, to mount them at a height. Sheathing with clapboard is also not right. But I, as they say, fell for fachwerk and began to think about how to bring this idea to life.

Having gone through several options, the user decided - to make the facade he liked so much for half-timbered houses based on OSB boards. This, according to the user, is much cheaper and easier than fiddling with the DSP.

Pie wall based on OSB

As a result, the user came to such a “pie” of the wall. From inside to outside:

• drywall;
• wall;
• insulation - mineral wool, laid in 2 layers, with a total thickness of 100 mm;
• wind and moisture protective membrane;
• counterlattice;
• OSB 3 slabs with fachwerk layout imitation.

Since total savings are at the forefront, the first thing a user of our site did Victor Banev, virtually laid out the slabs on the walls to minimize their sawing and waste.

Moreover, sheet dimensionsOSB dictate the location of the decorative layout from boards (25x100 mm), which close the joints of the plates and imitate half-timbered timber.

After several intermediate layout options, we managed to come to a common denominator. A sheet measuring 224x122 cm, placed vertically, almost completely covers the wall, and linings (boards) are needed only to protect the vertical joints of the plates. We'll tell you how to figure out the layout (after removing all required dimensions from the facade) on the example of the left wall of the house.

If you look at the figure above, you can see that 2 whole sheets of OSB are placed vertically on the left and right. According to the results of measurements of the wall, it turned out that the distance (the remaining gap) in the middle is wider than one sheet, but already two. Those. - we need to sheathe the wall with two segments laid horizontally, and then close the resulting horizontal seam. To maintain symmetry and overall design layouts, add horizontal strips to the extreme OSB sheets and act in a similar way around the entire perimeter of the building.

The layout of the slabs and boards that close the joints depends on the size of the house, and each case should be considered and calculated individually.

Mounting plates

Having dealt with the design of the layout, we proceed to the installation of plates. The work is simple, but there are a number of nuances. First of all, let's not forget that hinged facade requires good ventilation to release excess moisture. If we neglect the main ventilation ducts (gap) with an exit in the upper part of the facade, then the moisture will be locked inside, behind the OSB boards, which do not pass steam well, and with a large thickness are practically vapor-tight. Hence - a bunch of problems in the form of mold and waterlogging of the insulation.

The user has a gap at the top of the facade, approximately 1.5 cm across the entire width of the panel.

We proceed directly to the installation of OSB. The thickness of the plates in this version is 9 mm. This is quite enough, because. sheets practically do not carry a power load. First, on the walls, outside, we fill the frame - a crate of vertically placed wooden bars with a section of 50x50 mm.

We lay between them, by surprise, a mineral wool insulation.

Next, we stuff horizontal crate and, accordingly, we lay the insulation (the so-called cross-insulation), orienting it horizontally. Thus, the joints of the plates overlap. Then we attach vapor-permeable waterproof membrane, with obligatory overlap and gluing of joints with adhesive tape (double-sided).

Then we stuff vertical bars 30x40 mm, for attaching OSB sheets.

Victor Banev

The installation step of the bars is 0.4 m, i.e. it turns out: 3 vertical strips per 1 sheet. OSB was fastened with self-tapping screws, 6 pcs. for 1 bar. A gap of 2-3 mm was left between the sheets. Further, the gap was carefully painted over, although I think that this is not necessary, because. from direct contact with rain or dew, the ends of the slabs will be protected by wooden plates 100 mm wide.

In addition to insulation, windows were replaced at the house, for which they were brought forward on frames made of 5x15 cm boards.

Upon completion of the cladding, they began painting the mounted walls.

Before painting, one additional layer of universal bioprotective moisture-resistant impregnation, on a varnish basis, was applied to the surface of the plates. Application was performed on 2 sides.

Further, the plates, before mounting on the walls (it is more convenient and faster to work), were covered with two layers of acrylic facade paint. At the stage of coverage, the user made one mistake, which will be discussed below, but for now we offer to see what happened at this stage. According to the user, the result exceeded all expectations.

If you move away from the facade by 1.5-2 meters, then it seems that the walls are finished with plaster, and you understand from the street that this is a facade made of OSB boards, impossible.

In addition to the decor, instead of the old porch, a summer veranda was erected in the shape of the letter G from a 15x15 cm timber.

After that, we moved on to finishing - the installation of a half-timbered layout. The planed layout board has different lengths. Somewhere - 2, somewhere - 3 meters.

Diagonal jibs, 2.5 m each, are made from one solid board.

Boards are attracted along the edges with self-tapping screws. It turns out a strong, tight connection, which does not get moisture.

For contrast, the boards were painted in dark brown.

The three-year operation of the facade confirmed the correctness of the technology. The OSB boards on the ends did not swell, the paint did not peel off, the quality of the facade is consistently high. The only point mentioned above: due to an error made at the installation stage (several boards “forgot” to be treated with bioprotection), OSB was covered with fungus on the outside, which in places came out from under the paint.

Plates treated with protection were not touched by mold. This error turned out to be easily fixed. The lining was removed and painted over again with paint (for safety - with an antiseptic additive). A year later, the fungus did not appear. What ended up happening Victor Banev, show the following photos.

Andrey Pavlovets FORUMHOUSE Member

The facade has been in use for 10 years. I walked over the DSP boards with a water-based emulsion 2 times, and that’s all, since then I haven’t tinted anything for all this time. The paint is holding up really well. Did everything myself. I sawed a DSP with a size of 1200x3600x10 mm into squares with a side of 1200 mm. Otherwise, do not lift. The hardest part is making the top corner outer pieces. To sheathe, I had to climb the stairs, if I made a mistake with the gash, go down and saw again. I drilled holes for self-tapping screws in advance, then baited them with fasteners and, using a system of blocks, lifted them up. Difficult, but worth it.

Portal users will find useful articles that describe and.

Room covered with OSB boards

It is desirable that the installation of OSB on the walls is carried out by specialists. OSB (oriented strand board) is a material that has gained popularity in the field of construction and home decoration. It is distinguished by a large number of advantages that allow it to be used in the exterior decoration of a dwelling, in the lining of internal walls and in the construction of partitions in the process of redevelopment. In view of the increasing demand for this material, it is worth considering what are the advantages of OSB boards and where they are used, as well as what finishing methods exist for this material.

According to builders, wall decoration with OSB boards has a number of advantages:

1. Compared to other materials sold in sheets, OSB walls are relatively inexpensive.
2. The method of manufacture assumes resistance to damage, which ensures a minimum of defects during production, transportation and after installation.
3. They are lightweight, so the installation of plates on the walls does not carry a large load on the supporting structures. Also, due to the lightness, these plates are easy to carry from place to place and install with your own hands.
4. These plates look attractive on their own. There are several options for additional decorative finishes.
5. This material is resistant to moisture, decay, fungal infection and is of little interest to insects.
6. The strength of the structure of the plates does not prevent them from drilling or processing in any other way.

All these properties make the material suitable for external and internal work. However, when choosing, you should pay attention to the reputation of the manufacturer. For the sake of economy, some firms do not comply with technology, so their products turn out to be of poor quality from an environmental point of view. Such boards can emit harmful substances. Any OSB product does not allow moisture and steam to pass through, so in rooms with such a finish, you should take care of decent ventilation.

Areas of use

There are two main ways to work with OSB boards. Firstly, this is the rough cladding of the main wall inside or outside. This option allows you to reduce the number of joints, align the wall and make it more durable. To achieve such results, it is worth considering a number of points:

1. The fastening of the material is carried out after 30 cm in the intermediate sections and twice as often at the joints.
2. The outer edges are attached to the wall every 10 cm at a distance of at least 10 cm from the end of the sheet.
3. For ventilation, gaps are left between them, which are then filled with sealant. This is one of the main ways to provide ventilation for exterior walls.
4. When finishing a wall of OSB boards, you should take care of protection from wind and excessive moisture. Taking into account the peculiarities of the material for working outside, it is worth using a superdiffusion membrane; foil polyethylene is useful for finishing inside.

Other nuances in the question of how to sheathe a wall with OSB boards are discussed in the following video:

Secondly, to change the layout of the rooms, you can mount OSB partitions. For this, installation on wooden or metal profiles is used. Drywall is fixed in a similar way. The difference between OSB partitions is the resistance of this material to deformation, therefore, such interior elements do not bend under their own weight and are more reliably protected from cracks and other damage. OSB partition on a wooden profile

Since wood is included in the basis of the material in chip fragments, in the manufacture of OSB boards they are covered with a special composition. It includes resins, wax or paraffin. It not only has a bonding effect, but also gives the surface evenness and smoothness, so additional finishing of OSB walls is associated with additional difficulties. Firstly, the outer layer does not differ in adhesive properties. Secondly, some components contain grease and other substances that can seep through the exterior finishes and ruin the final look, so you should consider decorating the material before finishing the OSB walls inside the house.

Paint or varnish finish

Wall painting or varnishing is one of the budget ways to decorate the walls of rooms. But in order for the layers to lie evenly, and in the future there will be no unpleasant surprises, it is worth considering a number of points.

First you need to inspect all the places where the plates are attached for not fully hammered nails or twisted screws. These minor imperfections can cause rust spots to show through the paint. In the case of nails, it is worth using a hammer, because when working with a hammer, not only will there not be a sufficient result, but the wall cladding will also suffer.

If it is planned that the internal walls will be painted, it is worth using an acrylic sealant to process the joints, since the paint does not fit well on the silicone look.

An obligatory stage of work is the priming of the surface. It will provide the material with great adhesive properties. In addition, the layer will lie more evenly on the prepared surface and give the appropriate effect. After the first coat of primer, it is necessary to pay attention to the condition of the pile. After such processing, it can rise, and the wall will lose evenness.

To correct this shortcoming, the surface must be treated with sandpaper and another coat of primer applied. After that, you can finish the walls of the room with varnish or paint. Depending on the humidity of the room, you can use the option on alkyd or acrylic. In some cases, water-based paint is also suitable. Some builders recommend acrylic lacquer for walls.

For reliability and aesthetic beauty, it is recommended to apply the coating in 2-3 layers.

Coloring OSB boards

Preparing OSB walls for wallpapering

Wallpaper is considered the most popular option for wall decoration, so they are used in rooms with walls finished with OSB boards. Sometimes such a need arises in the process of redevelopment of space. So, before you make a partition, you should make sure that it is in harmony with the rest of the interior.

Before you start pasting wallpaper, the wall must be primed. When working, ordinary glue is used. However, for its greater effectiveness, it is necessary to add PVA to it.

Wallpaper on OSB wall

If necessary, OSB boards can be plastered.

OSB wall putty can be used if there is a need for the finished wall to become universal for applying any type of decorative coating. With this type of wall processing, you should pay attention to some features:

1. Putty is applied to a clean surface. The presence of dust, dirt or traces of other building materials on the wall can adversely affect the quality of the coating, so it is worth washing the wall well before applying the putty composition.
2. It is worth paying attention that the heads of nails and self-tapping screws are sunk as deep as possible, and it is better to remove the top layer with sandpaper. The surface for puttying should be slightly rough.
3. The joints between the plates are best treated with nitro putty. This will ensure evenness and strength. Alternatively, bodywork putty can be used, since its properties are designed for a moving object. In this regard, the composition has not only lightness, but also great connecting properties, and it does not collapse on the wall for a long time. After completion of the preparatory work, a layer of putty is applied.
4. After applying the composition, you can proceed to the primer of the surface.

This option is convenient because now any decorative material can be used on top of the primer layer without regard to the features of OSB boards.

Processing wall joints before puttying

OSB boards are a universal material for wall cladding of a house or finishing rooms inside it. This raw material is used both to strengthen walls and create partitions. It is quite durable, lightweight and resistant to mechanical stress, moisture, fungus and insects.

In order for this coating to last as long as possible, it is worth considering several factors before fixing the OSB. This is especially true for the distance between nails and screws, as well as the location of the joints. The appearance allows the use of OSB boards without any decorative treatment. However, they can be puttied, painted, varnished or prepared for wallpaper. Subject to technology, the result will be smooth walls, which will be the basis for any interior and will delight its owner for many years.

Related articles:

OSB boards are one of the types of wood materials that are in demand among builders and finishers. Such plates are most often used for wall cladding indoors, small buildings in the form of summer houses, as well as for flooring. Since this material itself does not have a presentable appearance, painting OSB boards indoors is often almost the only option to complete the finishing work. This technology has its own nuances. And before you paint the OSB board inside the house, you need to understand the process of painting in detail, find out which paint is best suited for this purpose.

What types of OSB boards are there?

Oriented strand board (OSB) is a composite type material with chips in the base. It is glued together with polymers, adhesives, resins and other similar substances. In the manufacture, waste is taken from the processing of aspen, but some plates can be created from other bases. These products are classified into several varieties according to their chemical composition:

• OSB-1. Suitable for decoration where the level of humidity is kept at a minimum level. Moisture-protective components in the composition are practically absent.
• OSB-2. For normal moisture levels.
• OSB-3. Finishing option where there is a high probability of contact with the surface of large amounts of moisture.
• OSB-4. Variety with maximum strength. Best protected from liquids. Such plates are even recommended for use when working with load-bearing surfaces.

Most often, when finishing, choose category two or three. It is on them that you should focus when studying painting tips.

What are the benefits of painting?

The use of the right paintwork materials will give the owners of a house sheathed with OSB slabs the following advantages:

• less effort and time, when compared with traditional wall decoration;
• the ability to mask the texture if it is created by sufficiently large chips;
• protection against moisture - the surface does not suffer from deformations, because water does not penetrate inside.

OSB painting for interior decoration is used only for interior decoration, because the outside of the plate will be seriously affected by the environment. The base will require more serious protection. This should be remembered by everyone who is interested in how to paint OSB slabs inside houses.

A layer of varnish is used when the painting of the plates is completed - then the pigments will not burn out, and the base itself will not deteriorate at such a speed.

Paint selection

How to paint OSB indoors, whether it is a residential building or summer house in the country? In principle, any composition will help to complete the coloring. Just keep in mind that each material has its own characteristics when used. Consider several options for which paint is better to use:

• OSB boards are made from resins and polymers, so solvent-based paints will be the best solution. There is no doubt that the adhesion of paints will keep maximum level, because the composition will penetrate inside the panel.

• Oil paints are a traditional solution that has become widespread. High-quality coating is provided by high viscosity, low level absorption. As a result, a reliable layer is formed, protected from any negative factors.

• Can be used alkyd enamels, take compositions for wooden bases. The materials penetrate deep enough into the base, but the coating is still durable. The alkyd mixture allows you to abandon such a stage as varnishing, which means that the finish becomes cheaper.

• OSB is combined with coloring materials water-dispersed group. But, in this case, it is likely that the plate will swell after painting under the influence of moisture. This moment is taken into account at the planning stage.

On video: ways decorative painting OSB panels.

Material preparation

Proper preparation largely affects how high-quality the final result of staining will turn out. The more thorough the preparation, the higher the adhesion of the material and base to other surfaces. Then and decorative layer will last much longer.

There are several important rules:

• Painting can be carried out prior to installation of the panels, if applicable. But this option negatively affects the appearance of the structure. Therefore, more often they still process the skin, the installation of which has already been completed.
• Grinding is carefully carried out on the surface of the plates. Standard sandpaper works great. This will not only mask the very structure of the slab, but also get rid of the protective layer, which often prevents the primer from penetrating deep into.

A variety of OSB-3 requires especially careful grinding. Wax-lacquer coating is not so easily removed.

Pre-processing is performed in the following sequence:

1. We use putty in order to level the surface of any parts and the place where the screws are attached. Glue-oil base is the best choice.
2. Interplate seams are sealed with a glue-oil mixture. But the borders often become visible, remain a little noticeable. Advice from experienced craftsmen - do not waste time trying to mask the material, but simply hide the seams themselves with the help of decorative elements.
3. When the putty dries, it must be cleaned with sandpaper until the surface is perfectly smooth. How can OSB be covered is a separate issue.

The priming process is as follows. Here's what you can use:

• The simplest option is water varnish for wooden surfaces. Acrylic or acrylic-polyurethane compounds are diluted using a ratio of 1:10. Then they are applied to the slabs until the impregnation is uniform.
• Alkyd varnish is one of the available alternatives. But for dilution, it is not water that is used, but white spirit or other similar means. Then the painted object will look better.
• A good alternative is the so-called adhesive primers. Such compositions help to create high-quality surface protection from paint.

Coloring technology

How to paint OSB? The instruction looks standard for those who have at least one-time experience with coloring compositions:

• We take a brush of a suitable width for painting the entire perimeter of a primed surface or a separate slab. The layer thickness increases at the edges. The paint will still be absorbed, and the protection is improved. You can also use a roller, so there will be a more uniform distribution of the composition.
• The first, base coloring layer is made of a small thickness. The main thing is that when laying the paint, the direction should be the same. When water-dispersed formulations are used, it is important that all the paint is distributed over different places surfaces are the same. It is impossible to completely get rid of the swelling of the OSB-plate. Therefore, it is important that this process remains at least uniform.
• The panels must be thoroughly dried. Inside the room there should be no sudden temperature changes, drafts.
• The second layer is applied at least 8 hours after the completion of the previous steps. Strokes should be applied perpendicular to the previous layers.
• The operation can be repeated until the surface looks appropriate. Buildings are covered with compositions using slightly different technologies.

Painting OSB boards at home is not as difficult as it seems at first glance. Indoors, the material is affected by a minimum number of environmental factors. Therefore, the outer layer should not meet such serious requirements. But even in such situations, the selection of material is of paramount importance, as well as compliance with the work methodology. Therefore, it is important to study the recommendations issued by professionals. It is good if there is an opportunity to study as many tips as possible in advance along with training videos, especially if a novice master does the work.

The opinion of experts on painting OSB (2 videos)

Suitable products (22 photos)

The use of sheet materials in construction and home decoration has long been known. But if in the past it was necessary to get by with only chipboard, fiberboard or plywood, today the ranks of traditional designs have been replenished with new analogues with improved properties, which makes them more suitable for certain types of work.

One example of such products is OSB boards for interior decoration, which will be discussed later.

What is OSB board?

OSB (OSB) is oriented strand board. The material is panels made from pressed shavings of coniferous and deciduous trees. Chip sizes can range from 60 to 150 mm.

OSB boards have high strength and density, due to the combination of several layers in them. In the middle, the chips are located across the sheet, and in the lower and upper layers - along.

All layers of material are pressed under high temperature and pressure and impregnated with waterproof resins and paraffin. As binder apply phenolic and formaldehyde resins. Finished slabs have a homogeneous structure - without cracks, chips and cavities.

Read more about the characteristics of OSB in our article.

Is it harmful to use a stove for interior decoration?

The possibility of using OSB for interior decoration depends on the labeling of the product, which in turn is determined by the amount of synthetic resins in the material that emit during operation harmful fumes.

The largest amount of toxic substances (from 10 to 30 mg per 100 g of dry matter) is contained in plates of class E2 and E3. OSB panels marked E0 and E1 contain in their composition a minimum proportion of harmful components - from 6.5 to 10 mg. This is usually the product foreign manufacturers: Glunz (Germany), Norbord (Canada), Egger (Austria).

Thus, the products of the last two brands are most suitable for use for interior decoration.

Materials of class E2 and E3 can only be used for outdoor work.

To protect yourself from buying "dangerous" material, it is worth considering some points that partially determine the correct choice of OSB:

• stove smell. With a high content of harmful substances, the material smells strongly of formalin and cheap plastic;
• products must have a certificate certified by a seal from the manufacturer or supplier. A copy of the document can be requested from the seller;
• it is also not superfluous to inspect the packaging, if any. Products of major manufacturers are usually labeled and provided with inserts with information.

How to make a partition from OSB inside the house and what screws to fix?

OSB - quite suitable material for the construction of internal partitions of rooms. The strength and light weight of the sheets clearly testify in favor of this product. OSB boards can be mounted on a metal profile (like GKL) or on wooden frame.

If the second option is used, the wood should be treated with protective materials against mold and mildew, as well as fire retardants.

Now as regards wall mounting diagrams, which will be considered on the example of a wooden frame:

1. At the installation site of the structure, markup is made. Lines are drawn along the floor and ceiling, which will serve as guidelines for the installation of horizontal guides.
2. Bars with a section of 4x6 cm are attached along the marking lines. If the wall is subjected to serious loads (for example, it is planned to hang furniture on it), it is better to use thicker bars - 5-8 cm. The guides are attached with dowels.
3. Install vertical racks, which are fixed to the horizontal bars with the help of metal corners and self-tapping screws.
4. After installing the racks, the OSB panels are mounted.

They are fixed with self-tapping screws, whose length depends on the thickness of the sheets and should be 45-50 mm more than this value. For example, when using a material with a thickness of 12 mm, the recommended length of self-tapping screws will be 60-65 mm.

In the middle of the plate, screws are screwed in increments of 30 cm, along the edges - every 15 cm. The indent from the edge is 1 cm. A gap of 1 cm is left between the plates and the floor. The same gap should remain between the OSB and the ceiling.

Also, the panels should not be installed closely, but at a distance of 3 mm from each other. This will protect the sheets from deformation during changes in humidity.

Making a partition from bars and OSB - watch the video:

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Internal wall cladding

This process, like the procedure described above, requires the preliminary construction of a frame, for which all the same wooden beams or profiles are used. Now an example for arranging a crate will serve as metal version, since the wooden frame was discussed earlier.

Finishing the walls of OSB with a slab consists of the following steps:

1. The first step is, as always, markup.
2. Further, vertical CD profiles are inserted into the installed guides and also fixed - to the wall with the help of self-tapping screws and metal hangers, to the horizontal guides - with drilling screws. The step between the posts is the same as in the case of a wooden frame.
3. To stiffen the crate, the vertical posts are reinforced with transverse profiles. With a standard ceiling height (2.5 m), it will be enough to install two elements for each span.

Installation of plates is carried out in accordance with the rules mentioned in the instructions for the construction of partitions.

How to finish the stove inside the room?

The interior decoration of wooden country houses as in the photo can be completely different in cost and design. For surface finishing from OSB sheets are used various materials. Let's consider them further.

Is it possible to fix drywall on OSB?

Can. Moreover, for this it is not necessary to use a metal profile, but it is enough to fasten the material to the base with self-tapping screws.

The main thing here is to the humidity level in the room was not high, since otherwise it can lead to deformation of the OSB and, consequently, the drywall sheathing itself. Self-tapping screws are screwed around the perimeter and in the center of the GKL in increments of 10-15 cm.

Painting with varnish and acrylic paint

varnish increases moisture resistance OSB boards. This finishing method is good for use in wet areas. Plates can be painted with any varnish intended for natural wood. The surface is cleaned of dirt, degreased, cleaned with sandpaper and treated with a primer. Varnished OSB has a smooth surface, but retains its texture.

Also a good option for finishing OSB is acrylic paint. It rolls well with a roller on the surface and forms a durable and "breathable" coating.

For the best effect, it is desirable to paint in two layers.

Puttying with gypsum putty

Putty materials do not adhere well to wood. Therefore, it is best to use compounds that have maximum adhesion to wooden surfaces. It can be dry mixtures "Rodband" or "Goldband", containing polymer additives and most suitable for working with wood. Vitonit KR can be used as a finishing putty.

Before puttying OSB primed with a special compound, where glue, interlining and a little putty mixture are added. If this measure is neglected, then the impregnation of the base can act on finished surface, causing the finish to become stained.

How to plaster the surface of OSB boards?

For plastering OSB, it is best to use a special mixture. For example, Knauf Sevener. The stucco finishing technology itself includes the following steps:

• The joints between the plates are puttied and pasted over with a sickle.
• The surface is treated with a primer (you can take Knauf Tifengrund).
• The first layer of plaster is applied and a reinforcing mesh is sunk into it.
• A covering and leveling layer is applied on top.

Glass wall sticker

If the plates smooth (polished), wallpaper can be glued directly on them. Otherwise, you will have to plaster and putty the surface, doing this according to the technology described above.

Glass fiber is glued to special compounds. In this case, the dry mix "Metilan Fiberglass Premium" and granular composition"Methylan Granulate Premium".

Learn how to glue wallpaper on OSB from the video:

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How to glue ceramic tiles?

You can paste it in several ways:

• fix the expanded mesh on the surface and lay the cladding on any adhesive for ceramic tiles;
• install directly on the OSB board using adhesive for deformable surfaces;
• use epoxy grout instead of adhesive.

The liquid wallpaper

This type of finish is applied to OSB in the same way as on ordinary wall. All you need is prepare the ground, sealing the joints and treating the surface with a primer.

Per 12 hours before work starts the composition of liquid wallpaper is kneaded and left in a plastic bag. Finished material applied with a spatula in an even layer from 3 to 7 mm.

One of the advantages of such material is that it is not afraid of small defects surfaces. They simply smooth out when applying the mixture.

Is it possible to sheathe a bathhouse and a garage inside the OSB with a slab?

OSB sheets are a material that is suitable not only for finishing residential premises. It can also be successfully used for sheathing a bath or garage.

In the first case, of course, you need to use only eco-friendly grades of material.

OSB in the bath should be processed 2-3 layers of water-soluble varnish, which will give shine to the surface and protect it from moisture.

As for the sheathing of the garage, here suitable OSB of any marking, since in non-residential premises care for the environment is the tenth thing and the harmfulness of the material does not matter.

From the foregoing, we can conclude that OSB boards are a versatile product, suitable for use under various types of finishes. This quality, combined with the strength of the panels, makes OSB a worthy representative of the sheet materials category.

How to putty OSB with your own hands - a detailed course for beginners:

The use of OSB boards today is so extensive that it can be found almost everywhere: both inside and outside structures. This is due to the high performance properties of the material and its ease of use. We will figure out for what purposes OSB sheets can be used, how to choose them and what to look for when finishing the surface inside and outside buildings.

The material is so reliable that they can finish the house outside

Use of material inside

I am often asked the question, is it possible to use OSB for interior decoration? There are no obstacles to this, since quality material always has certificates confirming its safety for human health.

Variants with increased moisture resistance tolerate adverse effects much better

wall cladding

OSB for interior wall decoration is the best fit. It is important to collect all the necessary materials before work:

Materials used	Characteristics
frame material
OSB boards	The size of the sheets is 2440x1220 mm, as for the thickness, it can be from 6 to 30 mm, you need to choose the option that suits specific situation. Most often, sheets with a thickness of 10-11 mm are used, but standards may vary. Quantity is calculated according to the area to be covered
frame material	Here we need either wooden bars or a metal profile. You yourself must choose the option that is more suitable for your home. Metal is more expensive, but it does not deform when temperature and humidity fluctuate, wood is cheaper, but the frame can “walk” with temperature fluctuations. Wood is most often used, but this does not mean that you cannot supply a profile.
fasteners	Interior decoration requires reliable fixation of each element, so close attention must be paid to fasteners. For work, you can use either self-tapping screws or screw nails, they fix the material much better than usual, which means they will provide a high reliability of the finish.

If you are purchasing OSB for finishing, then it is better to purchase material that has already been polished at the factory. This will greatly simplify your life and save a lot of time when applying decorative coatings.

The choice of fasteners should be approached responsibly

As for the tool, in all cases you need approximately the same set, I will list everything you need here, but I will not write about it in other sections, since this list will be relevant there as well.

You need to have the following on hand:

• If the crate or frame will be attached to concrete or brick, then you need a puncher with drills of the desired diameter and length. It can also be used as a drill by turning off the impact mode and placing a chuck under drills for metal or wood. Such a universal option is the most convenient today;
• For twisting individual elements construction and fastening OSB sheets you can’t do without a screwdriver to the frame with self-tapping screws - it’s unlikely that you can tighten the fasteners with your hands, it takes too much effort. If nails are used for fastening, then you will naturally need a hammer, this tool is available at any construction site;
• It is impossible to carry out quality work without measuring tool. You can use a variety of devices: from classic options, like a plumb line and tape measure, to high-tech in the form laser level and the same roulette. Marking is done using a regular construction pencil, although you can use special options like felt-tip pens.

Laser tool - a new word in convenience and accuracy

Now let's figure out how the walls inside the house are finished using OSB boards:

• First of all, you need to mark the future position of the frame, for this a level and a plumb line are used, it is important to determine the position of the elements in advance, so that later you are not constantly distracted by plane control. Most often, the elements are placed close to the walls, it is important to find the most prominent area and dance from it when marking;
• It is important to clearly define the distance uprights, they should run along the edges of each sheet and in the middle, creating a stiffener. Most often, the spacing of the frame elements is approximately 40 centimeters, the thickness of the bar should be at least 40 mm in order to ensure the convenience of attaching our OSB boards to it;

• The frame is fastened depending on the type of base: the structure is fixed to the tree with self-tapping screws, and to concrete and brick - with dowels. To strengthen individual sections (the same openings), you can additionally put metal corners. If you have a frame house, then the structure will already be present and you don’t need to build anything, the main thing is that the insulation is laid and the vapor barrier membrane is fixed;

Finishing inside the OSB with plates can also be done on a metal profile for drywall

• The fastening of the material is carried out according to strict rules: between the OSB plate and the floor there should be a gap of 10 mm, the same is left along the ceiling. It is also important to place the sheets not close, but at a distance of 3 mm from each other, this will eliminate surface deformation during humidity changes, because the material reacts to them;

It is important to comply with all the requirements indicated in this diagram.

• As for installation, self-tapping screws or nails are located every 15 cm at the joints of the sheets and at a distance of 30 cm at intermediate racks. Along the edges, that is, from above and below, it is recommended to place the fasteners even closer - every 10 cm. The work is done carefully, you should not place the fasteners closer than 10 mm from the edge, since there is a high probability of cracking the material.

This decoration of the room in the country looks very appropriate

Ceiling cladding

This option is most often used in country and country houses, but it can also be implemented in an apartment, if it fits the interior, the work is done in the following sequence:

This option is not suitable for all rooms.

• First of all, you need to fix the guides around the perimeter of the room, the easiest way is to pre-mark with a laser level or construction cord in order to have clear guidelines. Installation is carried out either using self-tapping screws, if the structure is wooden, or using dowels for other bases;
• Next, you need to fix the remaining elements of the frame, it is important to constantly monitor the plane and carefully fix each part of the structure. If the fastening is not done directly to the ceiling, but with a gap, then the easiest way to work is to use direct drywall hangers, with their help you can clearly set each rack and securely fix it;

Interior decoration can also be done directly along the beams, but it is first desirable to fix the waterproofing material

• As for fastening the sheets, the process is similar to that described above; it makes no sense to repeat all the requirements. Here we can only note the fact that if you built metal carcass, then you need to use self-tapping screws with a fine thread pitch, and not with a large one, like on wood.

Fastening the material is easiest with a screwdriver

When working with the ceiling, it is important to foresee the laying of the cable, and it is best to lay it in a special corrugated box to ensure safety.

flooring

The floor of OSB boards is not only reliable, but also original, so this option is found more and more often, as for the workflow, it can be divided into several main stages:

The workflow is very simple and straightforward

• First you need to determine how thick the sheet will be used, a lot depends on this. So, with a thickness of 15-18 mm, the distance between the lags should be no more than 40 cm, if the thickness is 18-22 mm, then the lags can be located in increments of 50 cm, and if the thickness is 23 mm or more, then between the lags there may be up to 60 cm. That is, if you already have logs, then you need to select an OBB slab for them, otherwise your floor will turn out to be unreliable;

This floor needs to be done right.

If you already have flooring in the form of a board or other material, then you can attach the OSB directly to it, you just need to pre-level the surface if there are bumps on it.

• Next, it is worth considering the location of the sheets, they are always laid perpendicular to the position of the lag, and all joints should fall on the support. As for the long side, for the floor it is necessary to use a special version of the OSB board with a tongue-and-groove connection system, since fastening the elements with staples or other fasteners is not the best solution, and the strength will be several times lower;

OSB tongue-and-groove board ideal for flooring

• Regardless of the basis on which the floor will be located, the surface must be waterproofed, for this it is laid special film, which will protect the material from below. If insulation is needed, then the heat-insulating elements are placed in the frame as tightly as possible;
• The OSB is fastened using self-tapping screws, which must be recessed so that the hat is located below the floor plane, this will simplify it further finishing. A deformation gap of 10 mm must be left between the plate and the walls in order to compensate for the reaction of the material to changes in humidity and temperature. Laying starts from the corner, this is also an important condition for reliable installation.

Work on fixing the material is not difficult

Using OSB for exterior walls

Due to the high moisture resistance of OSB-3 and OSB-4, it can also be successfully used for outdoor decoration. We will not consider the option of laying sheets on the roof, since this is not a finish, but a foundation device, but wall cladding requires the closest attention. This method is ideal for frame structures, as well as for protecting old buildings finished with wood clapboard.

Let's figure out how the outer sheathing is made of OSB boards, for starters, I'll show you a diagram that shows the ideal structure frame structure, this will allow you to understand how the entire workflow should be carried out, because we analyze only its last stage.

As you can see, the design is very solid and reliable.

External finishing is carried out according to the following algorithm:

• The entire surface of the facade must be covered with a windproof film, which will protect the structure from adverse effects and allow all its elements to maintain strength and reliability for as long as possible. Fastening the material is easiest to do with a special construction stapler;

The film must cover the entire surface to be trimmed.

• Next, you need to fix the outer crate, for it you can use both a bar and a planed board, it is much more convenient due to the large width. The distance between the elements depends on the thickness of the OSB plate, the most commonly used option is 10-12 mm, under which the crate should be fixed in increments of no more than 40 cm;
• As for the location of the sheets, all the requirements that apply inside are also relevant outside. The indentation from above and below should be at least 10 mm, and between the sheets it is necessary to leave gaps of 3-5 mm, since the temperature differences in the street are greater, which means that the material will expand more;

If the walls are sewn up with OSB panels without gaps, then the material will constantly deform at the joints

• Concerning window openings, then it is best to cut them directly into the sheet, this is the most durable option. It is important to make a reliable frame of the opening in order to secure the material as best as possible;

It is important to correctly arrange the openings

• Fastening is carried out using screw nails 50 mm long or self-tapping screws 41 mm long. The spacing at the joints is 15 cm, along the edges - 10 cm, on the elements in the middle of the sheet, responsible for rigidity - 30 cm. The indent from the edge is at least 10 mm, and even 15-20 is better, which is why it is better to make the crate of materials wider.

OSB is perfect for exterior decoration of the house

Decorative coating options

I deliberately did not go through every section about what can be applied to the surface and how to do it. I will discuss the most popular options in one chapter, and you will choose the best one depending on your situation. This will make it easier and clearer.

Coloring

If you need fast and inexpensive finish walls or ceiling, then this option will be the most optimal solution, in addition to low costs, it is good and the simplicity of the process. But in order to achieve the best result, you need to know whole line important conditions and recommendations:

• First of all, you need to check all the fastener caps, if some of them are located above the level of the sheets, then they should be drowned to a depth of 1-2 mm. Self-tapping screws are screwed in with a screwdriver, and the nails are deepened with the help of a finisher, since it is problematic to drive them deep with a hammer;

The doboynik allows you to deepen the nail heads below the level of the material

• All ends on the sheets are recommended to be rounded with sandpaper, this is necessary so that there are no smudges of the composition around the edges. Of course, it is best to use materials with polished ends, but it can be very, very difficult to find such;
• All attachment points, as well as joints between sheets, are sealed with sealant on acrylic base . It is great for OSB and allows you to hide all problem areas. Another plus of this type of composition is that they are easily painted if necessary, unlike silicone sealants. After drying, all excess is easily removed with sandpaper;

Acrylic composition is great for preparing for painting

If you will cover the surface with varnish or other composition that does not hide the structure of the material, then it is best to use Pine-colored acrylic sealant, it blends best with the OSB color and is almost invisible after application.

• Before finishing the OSB walls inside the house or outside the building, it is necessary to prime the plane. This is due to the fact that the surface has uneven absorbency, and if it is not prepared, then any paint and varnish composition will lie unevenly. It is best to use acrylic-based compounds with a strengthening effect for painting, they are applied with a brush or roller over the entire area;

The soil must cover the entire surface

• If, after drying the material, you find that the pile has risen on it, then it is necessary to grind the base with sandpaper with a grain of M150 or less. After all the flaws have been removed, the primer must be repeated, only after that we can assume that we have qualitatively prepared the base for finishing;
• Both paint and varnish can be used as a topcoat, it all depends on the purpose of use and the type of substrate. If paint is used, then it is best to use options based on alkyd or acrylic, although water-based formulations Suitable if you are using a moisture resistant board. The work is carried out in several stages, it is best to apply 2-3 layers in order to obtain a reliable and durable decorative and protective layer;

Paint is easiest and fastest to apply with a roller

• If you apply varnish, then you can use different options. After all, it may be a ceiling made of OSB boards and its finish will not be subject to wear, or it may be a floor that is under constant load, and if a fragile composition is applied, it will quickly become unusable. For ceilings and walls, acrylic lacquer is well suited, while for flooring it is best to use high-strength polyurethane-based options.

Polyurethane compound fills in any irregularities and creates a smooth, wear-resistant surface

putty

If you have not yet decided how to finish the OSB, but are firmly convinced that the surface will either be plastered, or wallpapered, or painted solid, then you can prepare the base by puttying it. Putty allows you to get a perfectly flat surface that can be finished as you like, and this is a definite plus of such a solution.

There are many opinions among specialists regarding how to do the job correctly, I will tell you about the option that I tried myself and which proved to be the best:

• First you need to clean the surface of dust and dirt, just wipe it with a rag and check if the heads of the screws or nail heads are sticking out. They must be recessed 1-2 mm below the level of the slab, and if this is not the case, all flaws must be eliminated before starting other work;
• Since the OSB boards undergo special processing, there is always paraffin or wax on the surface, these materials impair the adhesion of the compositions, therefore it is necessary to walk along the surface with an emery bar to remove the paraffin and make the material more rough. This is a tedious but very important step that must be done if you want the best result;

For large volumes of work, it is best to rent a grinder, so you will speed up the process at times

• Then it is necessary to seal all the seams between the sheets, for this you can use nitro putty, but I prefer lightweight putty for body work. It is very elastic and at the same time has excellent adhesion, it can quickly and reliably seal all joints. And there is no need to worry that the composition will fall off, it will last for many years, because its strength is an order of magnitude higher than that of building options;

To seal the seams, you can purchase the cheapest options for the compositions, they are perfect

• When the composition dries, you need to remove minor flaws sandpaper, after which you can start priming the surface. For this job, I use adhesive compounds, they fit perfectly on the OSB and create a rough surface that suits any type of finish. Simply put, we get an excellent base for any purpose and can put anything on it without racking our brains on how to finish OSB;

There is a special composition for OSB, which is applied before finishing the surface, but any adhesive primer will do.

• Any putty is applied to the surfaces prepared in this way, here the work is no different from the usual ones, you need to monitor the uniformity of the layer and carefully close up all the irregularities, if any. After drying, the surface must be sanded with sandpaper or a special mesh. On such a base, you can safely glue the wallpaper, you can apply paint, because you get the usual puttied surface;
• If you decide to apply decorative plaster on top, then you can additionally strengthen the surface with a fiberglass mesh, this will ensure maximum durability of the finish. It is recommended to lay it on the outside, inside it is not necessary at all.

This is what the structure of the decorative plaster finish looks like

Using all the recommendations, you can easily figure out how to finish an OSB house from the outside or how to process a ceiling. It is important not to break the technology and use only moisture-resistant materials, as they are much stronger and more reliable.

Conclusion

OSB board is an excellent modern solution that is suitable for various purposes and can be used both for interior and exterior decoration. It is important to fix the material correctly and securely, and then finish it to protect it from adverse influences and make it more attractive. appearance. The video will show you some important nuances the topic discussed, and if you have questions, then write them in the comments under this review.

If you want to express gratitude, add a clarification or objection, ask the author something - add a comment or say thanks!

Oriented strand boards, although they have an interesting pattern of pressed wood shavings, however, cannot be left uncovered. This is especially true of OSB on the facade of the building, where the panels are exposed to all winds, rains and suffer from other surprises of changeable weather.

OSB needs to be protected from:

1. Moisture. Although water-resistant grade 3 or 4 OSB boards are used for facade work, if they are not covered with a protective material on the outside, after a while they will be saturated with moisture from the soil and the atmosphere and begin to swell.

2. Temperature fluctuations and sunlight over time can also damage OSB boards. In addition to darkening the wood filler, the case may result in the destruction of the resinous binder and flaking of the surface. True, such serious damage is more inherent in low-quality panels. Most importantly, oriented strand sheets are classified as highly combustible materials (group G4) and need to be protected from fire from the outside and inside.

OSB sheathing

Here the choice is the richest: clinker tiles, hinged bricks, wall paneling, siding - the list could go on and on. But why do developers use OSB on the facade? To make construction cheaper. It is with this attitude that you need to approach the selection of finishes.

1. Vinyl or acrylic siding is an economical material that is suitable for any facade. You can pick up panels that look like a block house or brickwork.

The plus is that if the facade of the house is sheathed with OSB, it is not necessary to mount the crate on a flat plane. But what you can’t do without is a windproof waterproof membrane, otherwise the siding “sweating” from the inside will cause the surface of the plates to swell.

Polymer facing products are produced with a thickness of 0.8 to 1.2 mm, but the larger this indicator, the longer they will last. Both types have good strength characteristics, are resistant to chemicals and do not support the spread of fire. Siding easily tolerates heating up to + 85-88 ° C and, subject to the production technology, does not fade in the sun. Acrylic panels behave slightly better pvc, but there are no significant differences between them. Price - from 240 to 1210 rubles / m 2.

2. Decorative stone - such a cladding will make it possible to turn an OSB building into a solid brick or stone house, at least in appearance.

The process of finishing the OSB facade is quite complicated and costly, but the durability and ease of repair will pay off these costs in the future. To prepare the plates, you will need frost-resistant silicone-based sealants and antiseptic primers. On top of the panels, you will have to fix polystyrene foam, putty it, and cover it with reinforcing fiberglass on top and glue decorative items.

Artificial stone is made from Portland cement, which provides it with a high strength grade (from 150 and above). In addition, such lining withstands more than 100 freezing cycles, has a water absorption rate of 4-9%, which can be improved with a hydrophobic coating. Price - from 750 to 1450 rubles / m 2.

Plate finishing

1. Plaster.

At right choice plaster composition, it will extend the life of the particle board for many years and help make its surface more fire resistant from the outside. The consumption of facade plaster on a flat OSB plane will be minimal, but the associated costs will completely “eat up” the money saved.

The panels will need to be isolated from the moisture contained in the mixture (ideally covered with polystyrene foam) and reinforced with a special mesh. finishing it would be best to perform textured acrylic-based decorative plaster. It is elastic so as not to crack at the joints of the plates. Silicone is more expensive, but it has greater frost resistance, which is quite important in our latitudes, and the highest strength indicators. The cost of acrylic plaster based on 1 m 2 - 137-320 rubles, silicone - 425-1010.

2. Varnishes and paints for OSB facades.

Paint and varnish materials - the cheapest type facade decoration for OSB. Suitable water-based or oil paints on wood marked "for outdoor use". It is undesirable to use water-soluble coatings for OSB, as they will lead to uneven swelling of the surface layer.

But the OSB staining technology will need to be observed clearly:

• Fill interpanel seams acrylic sealant.
• Thoroughly clean and prime the surface of the plates.
• When applying primer and paint, pay special attention to the ends, as they are the most vulnerable point of the sheet material.
• OSB edges must be painted until all sharp corners are visible.

Oil paint is ideal option for particle boards on the facade, but here you have to take into account that it needs to be updated every 2-3 years - so quickly it will lose the original saturated color. Consumption when covering the base with a primer does not exceed 200 g/m 2 . At a cost of 80 to 540 rubles / kg, finishing the facade in any case will be inexpensive.

Acrylic paint has a high resistance to abrasion - up to 5000 cycles for Ceresit - while it is elastic and does not crack. Consumption is 3-4 m 2 / l, but most of these products can be diluted with water (up to 10% of the total volume). The price varies from 57 to 285 rubles / l.

Acrylic varnishes, with their water resistance, have such a valuable property as the ability to "breathe". Before varnishing the OSB board, it should be sanded, if this was not done in production, and degreased. The surface of the panel is primed, then varnish is applied. Transparent will emphasize the chip pattern and give the facade a noble shine, but you can also use tinted varnish in the case when the pattern is not so important.

If the OSB plane seems slippery, it means that waxes or paraffin were used to make it. Before finishing, it is covered with primer paint with the addition of fine quartz dust (sand) - it will provide better adhesion to the next finishing layer. The varnish dries quite quickly - in just a day, forming a sun-protective and frost-resistant film resistant to abrasion. Consumption for a single-layer application is 8-10 m 2 / l, the price is 149-550 rubles / l.

OSB board - durable and reliable material for facade cladding, but even for its highest quality brands, resistance to atmospheric phenomena is not great enough. Correctly executed protective coating will help to get rid of this shortcoming. The choice of products is large enough to easily find the optimal combination of beauty and final value.