Osb outside. Finishing facades with oriented strand boards

Read the contents of the article! Finishing houses osb outside: methods of finishing OSB sheets: painting, plaster, artificial stone, siding.

In this article we will look at next question: OSB finishing outside Houses.

Finishing OSB outside Finishing walls from OSB boards outside the house: how to finish OSB walls

There are a lot in various ways finishing walls from OSB sheets outside the house. All of them take into account the features of OSB boards, which are subject to the same deformations as wood.

Among the main methods used exterior finishing walls made from OSB sheets can be distinguished as follows:

Painting a house made of OSB

Painting OSB boards

Applying plaster to pox boards

Plaster OSB boards

Installation of decorative stone on osb boards

Finishing OSB boards with decorative stone

Fastening siding to OSB boards

Finishing OSB boards with sidingDecorative façade panels

Installation decorative panels on the walls of a house made of OSB

Methods osb finishing outside Dacha

Application OSB boards these days it 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 the ease of its use. We will figure out for what purposes OSB sheets can be used, how to choose them and what to pay attention to when finishing the surface inside and outside of buildings.

The material is so reliable that it can be used to decorate the outside of a house.

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.

Options with increased moisture resistance withstand adverse effects much better

Wall cladding

OSB is ideal for interior wall decoration. 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 range from 6 to 30 mm, you need to choose the option that suits the specific situation. Most often, sheets with a thickness of 10-11 mm are used, but standards may vary. The quantity is calculated based on the area to be coated
Frame material	Here we need either wooden blocks, or metal profile. You yourself must choose the option that is most suitable for your home. Metal is more expensive, but it does not deform due to changes in temperature and humidity; wood is cheaper, but the frame can “walk” when temperatures fluctuate. Wood is most often used, but this does not mean that you cannot install 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 conventional ones, which means they will ensure high reliability of the finish.

If you are purchasing OSB for finishing, it is better to purchase a material that has already been sanded 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 tools, in all cases you need approximately the same set; I will list everything you need here, but I won’t write about it in other sections, since this list will be relevant there too.

You need to have the following on hand:

If the sheathing or frame will be attached to concrete or brick, then you need a hammer drill with drills of the required diameter and length. It can also be used as a drill by turning off the impact mode and placing the chuck under drills for metal or wood. This universal option is the most convenient to date;
To twist individual structural elements and when attaching OSB sheets to the frame with self-tapping screws, you cannot do without a screwdriver - it is unlikely that you will be able to tighten the fasteners by hand, 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 a measuring tool. You can use a wide variety of devices: from classic options, such as a plumb line and tape measure, to high-tech ones in the form laser level and the same roulette. Marking is done using a regular construction pencil, although you can also 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 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 controlling the plane. Most often, elements are placed close to the walls; here it is important to find the most protruding area and dance away from it when marking;
It is important to clearly determine the distance of the vertical posts; they should run along the edges of each sheet and in the middle, creating a stiffening rib. Most often, the spacing of the frame elements is approximately 40 centimeters; the thickness of the block should be at least 40 mm 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 wood with self-tapping screws, and to concrete and brick - with dowels. To strengthen individual sections (the same openings), you can additionally install metal corners. If you have frame house, then the structure will already be present and there is no need to build anything, the main thing is that the insulation is laid and the vapor barrier membrane is fixed;

Finishing inside OSB boards can also be done on a metal profile for plasterboard

The material is fastened according to strict rules: there must be a gap of 10 mm between the OSB board and the floor, and the same is left along the ceiling. It is also important to place the sheets not closely, but at a distance of 3 mm from each other, this will prevent surface deformation due to changes in humidity, because the material reacts to them;

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

As for installation, screws or nails are placed every 15 cm at the joints of the sheets and at a distance of 30 cm on the intermediate posts. Along the edges, that is, 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 of the material.

This decoration of a room in the country looks very appropriate

Ceiling cladding

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

This option is not suitable for all rooms.

First of all, you need to secure the guides around the perimeter of the room; the easiest way is to pre-apply markings using a laser level or a 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 secure the remaining elements of the frame; here it is important to constantly monitor the plane and carefully fix each part of the structure. If the fastening is not made directly to the ceiling, but at intervals, then the easiest way to work is to use direct hangers for drywall; with their help, you can clearly align each rack and securely fasten it;

Indoor finishing can be done directly along the beams, but it is advisable to first fix the waterproofing material

As for fastening the sheets, the process is similar to that described above; there is no point in repeating all the requirements. Here we can only note the fact that if you built metal carcass, then you need to use screws with a fine thread pitch, and not with a large one, like for wood.

The easiest way to fasten the material is with a screwdriver

When working with the ceiling, it is important to plan for cable routing in advance, and it is best to lay it in a special corrugated box to ensure safety.

Flooring

A floor made of OSB boards is not only reliable, but also original, so this option is becoming more and more common. As for the work process, 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 logs should be no more than 40 cm, if the thickness is 18-22 mm, then the logs can be spaced in increments of 50 cm, and if the thickness is 23 mm or more, then there may be space between the logs 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 OSB directly to it; you just need to first level the surface if there are uneven surfaces.

Next, it’s worth considering the location of the sheets; they are always laid perpendicular to the position of the joists, and all joints should be supported. 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 board with tongue-and-groove connection is ideal for flooring

Regardless of what base the floor will be placed on, the surface must be waterproofed; for this, a special film is laid that 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 head is located below the plane of the floor, this will simplify its further finishing. A deformation gap of 10 mm must be left between the slab and the walls to compensate for the reaction of the material to changes in humidity and temperature. Laying begins from the corner; this is also an important condition for reliable installation.

Work on fastening the material is not difficult

Using OSB for external walls

Due to the high moisture resistance, OSB-3 and OSB-4 can be successfully used in exterior 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 trimmed with wood paneling.

Let's figure out how the exterior cladding is made from OSB boards. To begin with, I will show you a diagram that shows the ideal structure of the frame structure, this will allow you to understand how the entire work process should be carried out, because we are only analyzing its last stage.

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

Exterior 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 influences and allow all its elements to maintain strength and reliability for as long as possible. The easiest way to fasten the material is with a special construction stapler;

The entire surface to be finished must be covered with film.

Next, you need to secure the outer sheathing; you can use either a block or a planed board for it; it is much more convenient due to its large width. The distance between the elements depends on the thickness of the OSB board; the most often used option is 10-12 mm, under which the sheathing should be fixed in increments of no more than 40 cm;
As for the arrangement of sheets, all the requirements that apply inside are also relevant outside. The space at the top and bottom should be at least 10 mm, and gaps of 3-5 mm should be left between the sheets, since temperature differences outside are greater, which means the material will expand more;

If OSB panels sew up the walls without gaps, then the material at the joints will be constantly deformed

Concerning window openings, then it is best to cut them directly into the sheet, this will give you the best 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 design the openings correctly

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

OSB is perfect for exterior finishing of a house.

Decorative coating options

I deliberately did not begin to understand every section about what can be applied to the surface and how to do it. I will talk about the most popular options in one chapter, and you will choose the best one depending on your situation. It will be easier and clearer this way.

Coloring

If you need quick and inexpensive finishing of walls or ceilings, then this option will be the best solution, except high costs It is also good because of the simplicity of the process. But in order to achieve best result, you need to know a whole range of 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 recessed to a depth of 1-2 mm. Self-tapping screws are tightened with a screwdriver, and nails are deepened using a hammer, since driving them deep with a hammer is problematic;

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

It is recommended to round all the ends on the sheets using sandpaper, this is necessary so that there are no smudges of the composition along the edges. Of course, it is best to use materials with ground ends, but finding such can be very, very difficult;
All fastening 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 advantage of this type of composition is that they are easily painted if necessary, unlike silicone sealants. After drying, all excess can be easily removed with sandpaper;

Acrylic composition is excellent for preparation 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 acrylic sealant in the color “Pine”; it matches best with the color of OSB and is almost invisible after application.

Before finishing OSB walls inside a house or outside a building, it is necessary to prime the surface. This is due to the fact that the surface has uneven absorption, and if it is not prepared, then any paint and varnish composition will lie unevenly. It is best to use acrylic-based compositions 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 the material has dried, you find that pile has risen on it, then you need to sand the base with sandpaper with a grain size of M150 or less. After all the defects have been removed, the primer must be repeated; only after this can we consider that we have qualitatively prepared the base for finishing;
As finishing coating Both paint and varnish can be used, it all depends on the purpose of use and the type of base. If paint is used, it is best to use alkyd or acrylic based options, although water-based compositions suitable if you are using a moisture-resistant slab. The work is carried out in several stages, it is best to apply 2-3 layers to obtain a reliable and durable decorative and protective layer;

The easiest and fastest way to apply paint is with a roller

If you are applying varnish, you can use different variants. After all, it could be a ceiling made of OSB boards and its finishing will not be subject to wear, or it could be a floor that is under constant load, and if a weak composition is applied, it will quickly become unusable. Good for ceilings and walls acrylic lacquer, while for flooring it is best to use high-strength polyurethane-based options.

The polyurethane composition fills all uneven surfaces 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 covered with wallpaper, or painted all over, then you can prepare the base by puttingtying it. Putty allows you to get a perfectly flat surface that can be finished however you like, and this is an undoubted advantage of this solution.

There are many opinions among experts regarding how to carry out the work correctly, I will tell you about the option that I tried myself and which showed itself 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 should be recessed 1-2 mm below the level of the slab, and if this is not the case, all defects must be eliminated before starting other work;
Since OSB boards undergo special treatment, there is always paraffin or wax on the surface; these materials impair the adhesion of the compounds, so you must go over the surface with an emery block to remove the paraffin and make the material rougher. 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 sander, this will speed up the process significantly

Then you need 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 you don’t need to worry that the composition will fall off; it will withstand many years, because its strength is an order of magnitude higher than that of construction options;

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

When the composition has dried, you need to remove small flaws with sandpaper, after which you can begin priming the surface. For this work I use adhesive compounds; they adhere perfectly to OSB and create a rough surface that is suitable for any type of finish. Simply put, we get an excellent base for any purpose and can apply anything to it without worrying about how to finish OSB;

Eat 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, the work here is no different from ordinary work, you need to ensure the uniformity of the layer and carefully repair all unevenness, if any. After drying, the surface must be sanded using sandpaper or a special mesh. You can easily glue wallpaper onto such a base, you can apply paint, because you get a regular putty surface;
If you decide to apply decorative plaster on top, you can additionally strengthen the surface with fiberglass mesh, this will ensure maximum durability of the finish. It is recommended to install it for exterior finishing; it is not at all necessary inside.

This is what the structure of decorative plaster finishing looks like

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

Conclusion

OSB board – excellent modern solution, which is suitable for different purposes and can be used for both interior and exterior decoration. It is important to properly and securely fasten the material and then finish it to protect it from adverse influences and give it a more attractive appearance. The video will tell you about some important nuances discussed topic, and if you have questions, write them in the comments under this review.

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

OSB boards or otherwise OSB sheets are widely used for the construction of walls in houses, in particular in frame construction. Therefore, the issue of their external decoration is very relevant today. Moreover, not only from an aesthetic point of view, but also in terms of protecting the material from negative impact external factors (high humidity, sudden temperature changes, solar radiation and others).

Question OSB installation slabs on the walls outside the house is discussed in the article: fastening OSB sheets to the walls outside the house. Here we will consider the following issue: finishing walls from OSB boards outside the house.

The issue of finishing walls from OSB panels inside a house is discussed in the article: finishing OSB walls inside a room.

Finishing walls from OSB boards outside the house - the main methods

There are many different ways to decorate walls made of OSB sheets outside the house. All of them take into account the features of OSB boards, which are subject to the same deformations as wood. More details about properties of OSB slabs can be found in the article: what is OSB slabs, types, characteristics, application. Among the main methods used for external finishing of walls made of OSB sheets are the following:

Painting

To paint OSB boards, you can use a brush or roller.

Painting is the simplest and most common option, which does not require a lot of time and money. Water-based or oil-based wood paints are used for exterior work. In order for the coating to adhere well, it is important to properly prepare the surface for painting. First of all, it is recommended to seal the interpanel seams with acrylic sealant, and then thoroughly clean and prime the entire surface of the slabs. The paint is applied in several layers. Each of them must be given time to dry thoroughly before applying the next layer.

More details about the choice of paint and technologies for painting OSB outside the house can be found in the article: how to paint walls made of OSB sheets outside the house.

Applying plaster

Plaster allows you to extend the life of the slab and additionally protects it from fire. OSB boards can change their geometric dimensions over wide ranges due to changes in humidity and temperature environment. If you apply plaster directly to the OSB board, it will soon become covered with cracks and peel off from the base. Therefore, two main technologies are used: the use of an intermediate layer and layer-by-layer application of plaster.

Expanded polystyrene or glassine can be used as an intermediate layer. Expanded polystyrene has good moisture insulation and further improves thermal insulation properties walls. Glassine or bitumen cardboard has a low price.

To prepare the base, sealant is applied to the joints between the sheets. The sheets themselves are primed. After this, an intermediate layer in the form of polystyrene foam or glassine is glued. A reinforcing mesh is attached on top of this layer and a layer of plaster is applied.

When applying plaster directly to OSB sheets, the process is divided into several stages. After preparing the base, as in the previous version, proceed to the first stage. During which the first layer of plaster is applied, a reinforcing mesh is embedded in it. After drying, apply another layer. After this, a leveling layer is applied.

The option without an intermediate layer is less reliable and after 2-3 years the plaster may begin to peel off, so it is usually recommended to use an intermediate layer.

Installation of decorative stone

Artificial stone is one of the most complex and expensive finishing methods. However, the excellent appearance of the finished facade and the durability of such a coating will certainly pay for itself over time. Stages of work:

Before starting work, the seams of OSB boards are filled with frost-resistant sealant, and the boards are primed.
Polystyrene foam is glued on top.
Then it must be filled with frost-resistant putty.
Then apply two layers of glue. Place the reinforcing mesh into the first one.
Place decorative stone on the second layer.

Sometimes decorative stone is glued without an intermediate layer in the form of polystyrene foam. This option is less reliable and after 2-3 years the coating begins to peel off.

Siding fastening

Siding is a universal finishing method that can be used for any facade. The material has an affordable price and excellent appearance. Provided that the OSB board has a flat surface, fastening the sheathing is optional. At the same time, so that during operation the material does not swell from the condensation formed, it is important not to forget to install a windproof, waterproof membrane between the slabs and the siding.

Decorative facade panels

Installation of decorative panels on the walls of a house made of OSB.

Decorative facade panels have a wide range of modifications and are made using various materials: wood, metal, plastic, glass. The technology for installing such panels depends on the panels themselves. Most often used for fastening are: dowel fasteners, brackets and metal profiles.

Each of the listed methods has its own advantages and disadvantages. It doesn't matter which one you choose. The main thing is to strictly adhere to the recommendations of specialists and the correct technology.

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

OSB needs to be protected from:

1. Moisture. Although for facade works waterproof OSB boards of class 3 or 4 are used; if the outside is not covered with a protective material, after some time they will be saturated with moisture from the soil and atmosphere and begin to swell.

2. Temperature fluctuations and sunlight can also damage OSB boards over time. In addition to darkening of the wood filler, this can result in the destruction of the resinous binder and peeling of the surface. True, such serious damage is more typical of low-quality panels. The most important thing is that oriented strand sheets belong to highly flammable materials (group G4) and need protection from fire outside and inside.

OSB sheathing

There is a wide choice here: clinker tiles, hanging bricks, lining, siding - the list could go on and on. But why do developers use OSB on the facade? To reduce the cost of construction. It is with this attitude that you need to approach the selection of finishes.

1. Vinyl or acrylic siding – economical material, which is suitable for any facade. You can choose panels that look like a block house or brickwork.

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

Polymer cladding products are available in thicknesses from 0.8 to 1.2 mm, but the larger this figure, 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 production technology, does not fade in the sun. Acrylic panels behave slightly better than PVC, but they have no serious differences. Price - from 240 to 1210 rubles/m2.

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

The process of finishing a facade from OSB is quite complex and expensive, but the durability and ease of repair will pay for these costs in the future. To prepare the slabs, you will need frost-resistant silicone-based sealants and antiseptic primers. You will have to fix polystyrene foam on top of the panels, putty it, and then cover it with reinforcing fiberglass and glue decorative items.

Artificial stone is made from Portland cement, which provides it with a high grade of strength (from 150 and above). In addition, such cladding can withstand more than 100 freezing cycles and has a water absorption rate of 4-9%, which can be improved with a water-repellent coating. Price - from 750 to 1450 rubles/m2.

Slab finishing

1. Plaster.

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

The panels will need to be insulated from moisture contained in the mixture (ideally covered with expanded polystyrene) and reinforced with a special mesh. The finishing touch would be best done with textured decorative plaster on an acrylic base. 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. Price acrylic plaster based on 1 m2 - 137-320 rubles, silicone - 425-1010.

2. Varnishes and paints for OSB facades.

Paint and varnish materials are the cheapest type facade finishing for OSB. Water-based or oil-based wood paints marked “for exterior use” are suitable. It is undesirable to use water-soluble coatings for OSB, as they will lead to uneven swelling of the surface layer.

But the technology for painting OSB will need to be strictly followed:

Fill the interpanel seams with acrylic sealant.
Thoroughly clean and prime the surface of the slabs.
When applying primer and paint Special attention pay attention to the ends, since they are the most vulnerable point of the sheet material.
OSB edges must be painted until all sharp corners are visiblely rounded.

Oil paint is ideal option for particle boards on the facade, but here you have to take into account that it needs to be renewed every 2-3 years - it will lose its original rich color so quickly. Consumption when covering the base with a primer does not exceed 200 g/m2. At a cost of 80 to 540 rubles/kg, finishing the facade will in any case be inexpensive.

Acrylic paint is highly resistant to abrasion - up to 5000 cycles for Ceresit - while it is elastic and does not crack. Consumption is 3-4 m2/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, while waterproof, have such a valuable property as the ability to “breathe”. Before coating the OSB board with varnish, 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 highlight the chip pattern and give the facade a noble shine, but you can also use tinted varnish in cases where 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 coated 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 an abrasion-resistant sun protection and frost-resistant film. Consumption for single-layer application is 8-10 m 2 / l, price - 149-550 rubles / l.

OSB board - durable and reliable material for cladding facades, but even the highest quality brands are not weather-resistant enough. Properly performed protective covering. The selection of products is large enough to easily find optimal combination beauty and final value.

In construction and renovation, various sheet materials are often used to cover walls and ceilings. One of these materials is oriented particle board(OSB), also sold under the English name OSB (Oriented Strand Board).

OSB: what is it and how to use it

OSB is made from wood chips and large shavings, gluing them at high temperatures with synthetic resins.

The slab consists of several layers, usually 3-4, with different orientations of the chips.

In the outer layers, the chips are located along the long side of the sheet, in the inner layers - across. According to its characteristics, OSB is close to plywood, but costs less.

Benefits and Features

A distinctive feature of OSB is its high strength due to the cross arrangement of wood fibers. The strength of the boards is superior to MDF, chipboard and wood, slightly inferior to plywood. The boards show high resistance to chemicals. Some manufacturers use special impregnations in the production of slabs - fire retardants, which reduce the flammability of the material. OSB boards are easy to process; to work with them you will need ordinary woodworking tools.

How OSB boards are calculated

There are mainly 2 standard sizes of slabs: 2440*1220 mm (American standard) and 2500*1250 mm (European). There are OSB in other sizes, but they are much less common and are produced mainly to order.

To calculate the quantity, the easiest way is to draw a wall plan on checkered paper, taking the size of the box to be 250 for slabs European standard or 300 mm - for American. Then draw OSB boards on the plan and count their number. It is better to arrange the sheets in a checkerboard pattern. In this case, you need to take into account how the surface will be finished in the future.

If you plan to cover, for example, with siding on the street or gypsum board indoors, joining with non-factory cuts is allowed, but if painting is planned, try to join the slabs with factory cuts. It is advisable to reduce the number of joints to a minimum. For example, it is better to sew up a fragment of a wall measuring 2.4 m by 1.2 m with one sheet, rather than 3 pieces of 0.8 * 1.2 m, because it is quite difficult to make a perfectly straight cut, and even a slight deviation from straightness will create a gap. To the received amount of OSB you need to add several sheets as a reserve in case of defects or errors during cutting.

An easier way is to divide the surface area by the leaf area. In this case, “in reserve” it is necessary to take at least 20% of the quantity. Round the resulting number up.

What kind of OSB boards are there for external walls?

OSB is made in 4 types:

OSB-1 - used only in dry rooms for cladding.
OSB-2 – used as a construction material in dry rooms.
OSB-3 – can be used both indoors and outdoors. Can be used in conditions with high humidity. Strength allows the use of OSB-3 as a structural material.
The most common class is OSB-4 - more durable and moisture resistant than OSB-3.

For cladding external walls, only classes 3 and 4 can be used.

External installation: lathing

External wall cladding can be carried out in several cases:

In order to level out existing walls, hide defects (cracks, crumbling plaster, etc.) and simply as cladding.
In frame construction - to protect the insulation from wind and precipitation, and also as an element of the supporting system.
When insulating walls - to protect the insulation from atmospheric phenomena.

In all 3 cases, OSB sheets are attached to the sheathing. The sheathing is made from wooden lumber of various sections, depending on the task. Unplaned timber is most often used coniferous species natural humidity with a cross section of 50*50 or 40*50 mm. OSB can be attached to a metal frame.

When insulating, the sheathing is performed in steps that are a multiple of the width of the insulation minus 20 mm, without insulation - the step is chosen so that the joints of the sheets fall on the beam; several additional racks are added between the joints with a distance between them of at least 600 mm.

When covering walls, use a moisture-proof film, following the recommendations of its manufacturer, in particular, the distance between the membrane and the OSB.

How to attach panels to the wall

OSB boards are usually attached to the wall through the sheathing using wood screws when using bars in the frame, or metal screws when attached to a metal profile frame. The length of the screw should be 25-45 mm.

It is allowed to mount OSB directly to the wall. To do this, holes are drilled in a sheet cut to size, the sheet is installed in place, the wall is drilled in the designated places with a hammer drill, dowels are inserted and screws are tightened. When attached to a wooden base, the hardware is screwed in without pre-drilling.

Fasten the screws in one selected direction, for example, from left to right, from bottom to top, otherwise the OSB sheet may bend.

How to decorate the outside beautifully from osb

OSB has a rather interesting texture, which leaves many finishing options. At the same time, you need to remember that OSB consists of 90% wood, so the material is subject to the same dangers as wood. Fungus and mold may appear on the slabs; to a small extent they are susceptible to rotting; the resin may be destroyed under the influence of sun rays, the ends of the panels absorb moisture.

OSB boards are treated with wood compounds for outdoor use. The composition must provide UV protection. To preserve color and texture, the surface is coated with colorless varnish and antiseptic impregnations, to impart woody shades - with decorative antiseptics, for painting in various colors – facade paints for wood.

To obtain a smooth surface, OSB walls are plastered and puttied. Before applying plaster, the surface of the slab must be protected from moisture with special primers or glassine, then a plaster mesh is attached and plastered. It is possible to apply decorative plaster or paint.

Also, OSB walls can be covered with any type of siding or facade panels, block house, clapboard, etc.

OSB material for interior work

OSB is used indoors for cladding walls, ceilings, for constructing subfloors, as a structural material in the manufacture of built-in furniture, for creating decorative elements, boxes, technological cabinets. In frame house construction, internal wall cladding with OSB increases the strength of the structure.

Work progress

OSB wall cladding consists of the following steps:

Marking.
Lathing device.
Laying heat and sound insulation, if provided for by the project.
Fastening solid OSB sheets.
Sawing OSB to size.
Fastening the remaining sheets.

Tools

To cover OSB walls you will need:

Hacksaw, Circular Saw or a jigsaw for cutting material.
Screwdriver.
Level.
Marking tool (tape measure, square, pencil).
Perforator for covering brick walls.
Chisel.

Interior finishing options

The unusual structure of OSB allows you to create a rather attractive interior. The slabs can be used without finishing, but it is better to coat them with varnish to improve their performance properties. OSB can be painted with wood paints, processed decorative impregnations for wood. To obtain a smooth surface, the panels need to be puttied with wood putty, after which they can be painted or covered with wallpaper.

How to properly make lathing for osb

When installing sheathing from bars, first attach the beam around the perimeter, then install vertical posts with a pitch of 406 mm with a sheet width of 1220 mm and 416 mm with a sheet width of 1250. If you need to join the sheets in height, a horizontal bar is attached at the junction.

The bars are attached to the wall in 2 ways:

Directly through the block. When attaching to concrete, brick, cinder block and aerated concrete walls holes are drilled in the bars according to the diameter of the dowel in increments of 300-400 mm, the block is placed against the wall, holes are drilled in the wall through the prepared holes using a hammer drill, dowels are inserted and screws are tightened or anchors are used. It is more convenient to first secure the block along the edges, after which you can not hold it and calmly fasten it at the remaining designated points. When attaching to wooden walls, the block is tightened with self-tapping screws without drilling holes. It is better to use “white” or “yellow” self-tapping screws, because If the “blacks” use too much force, the cap breaks off and it is very difficult to remove such a self-tapping screw. To adjust the frame vertically, wood linings are used.
On galvanized corners or U-shaped fastening profiles. In this case, first mark the position of the bars, install the fastening elements according to this marking, then attach the beam with self-tapping screws.

When using a metal profile for the frame, a guide profile is attached around the perimeter, and a rack profile is attached to the plane. The profile is fastened to the wall using special hangers.

Racks and guides on the walls must be strictly vertical!

Is frame sheathing with OSB sheathing inside required?

OSB boards can be mounted directly on the wall, but it is better to use lathing. This will allow you to correct the slope or curvature of the wall, lay mineral wool to improve heat and sound insulation. The sheathing also creates air cushion, due to which the space between the wall and the OSB board is ventilated.

Installation of OSB boards

OSB is fastened with the long side vertical to reduce the number of horizontal joints. When attaching the first sheet, you should control its level position, otherwise gaps may appear in the corners of the walls. Otherwise, the fastening rules are the same as for outdoor work.

What should be the thickness

OSB comes in different thicknesses: 6, 8, 9, 10, 12, 15, 18, 22, 25 mm.
Sheets with a thickness of 6 and 8 mm are used for cladding ceilings and structures that are not subject to mechanical load. OSB boards 6 mm thick can be used for curved surfaces with a large radius of curvature.

Slabs with a thickness of 9-12 mm are the main cladding material for cladding walls and ceilings both outside and inside premises, for constructing continuous sheathing under the roof.

Material with a thickness of 18 mm or more is used for the manufacture of furniture, load-bearing structures and subfloors.

Work examples

Attic lined with OSB

Built-in OSB shelving

Relaxation corner made of OSB

Putty on OSB

Operation of OSB finishing: features

Walls made of OSB boards do not require any special care; it is enough to follow the rules common to wooden surfaces, for example, avoid prolonged exposure to moisture.

OSB is a modern high-tech material that, if installed correctly, can last for many years.

Useful video

Room lined with OSB boards

It is advisable that the installation of OSB on walls be carried out by specialists. OSB (oriented strand board) is a material that has gained popularity in the construction and finishing of houses. It is distinguished by a large number of advantages that allow it to be used in the external decoration of a home, in the cladding of internal walls and in the construction of partitions during the redevelopment process. Due to the increasing demand for this material, it is worth considering what advantages of OSB slabs and where they are used, as well as what finishing methods exist for this material.

According to builders, finishing walls with OSB boards has a number of advantages:

Compared to other materials that are sold in sheets, OSB walls are relatively inexpensive.
The manufacturing method assumes resistance to damage, which ensures a minimum of defects during production, transportation and after installation.
They are lightweight, so installing the slabs on the walls does not carry a large load on the bearing structures. Also, due to their lightness, these slabs are easy to move from place to place and install with your own hands.
These slabs look attractive on their own. There are several options for additional decorative finishing.
This material is resistant to moisture, rot, fungal infection and is of little interest to insects.
The strength of the structure of the slabs does not prevent them from being drilled or processed in any other way.

All these properties make the material suitable for external and interior works. However, when choosing, you should pay attention to the reputation of the manufacturer. Some companies do not follow technology in order to save money, so their products turn out to be of poor quality from an environmental point of view. Such stoves can emit harmful substances. Any OSB product does not allow moisture and steam to pass through, so in rooms with such finishing it is worth taking care of adequate 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, level the wall and make it more durable. To achieve such results, it is worth considering a number of points:

The material is fastened every 30 cm in intermediate areas and twice as often at joints.
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.
For ventilation, gaps are left between them, which are then filled with sealant. This is one of the main ways to provide ventilation for external walls.
When finishing a wall made of OSB boards, you should take care of protection from wind and excessive humidity. Taking into account the characteristics of the material, it is worth using a superdiffusion membrane for working outside; for finishing the inside, foil polyethylene is useful.

Other nuances in the question of how to cover 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 purpose, installation on wooden or metal profiles is used. Drywall is attached in a similar way. The difference between partitions made of OSB is the resistance of this material to deformation, so 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 the base of the material includes wood in chip fragments, when making OSB boards they are coated with a special composition. It contains resins, wax or paraffin. It not only has a fastening 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 have any adhesive properties. Second, some components contain grease and other substances that can bleed through exterior finishes and ruin the final appearance, so you should consider decorative treatments for the material before finishing OSB walls inside your home.

Finishing with paint or varnish

Painting or varnishing walls is one of the budget ways decoration of room walls. But in order for the layers to lie evenly, and there are no unpleasant surprises in the future, it is worth considering a number of points.

First you need to inspect all the places where the plates are attached to see if they are not completely hammered nails or twisted screws. Such minor flaws can lead to manifestations rust spots through the paint. In the case of nails, it is worth using a nail hammer, since when working with a hammer, not only will the result not be sufficient, but the wall sheathing will also suffer.

If it is planned that interior walls will be painted, it is worth using acrylic sealant to treat the joints, since the paint does not adhere well to the silicone type.

An obligatory stage of work is priming the surface. It will provide the material with greater adhesion properties. In addition, the layer will lie more evenly on the prepared surface and give the corresponding effect. After the first coat of primer, you need to pay attention to the condition of the pile. After such treatment, it can rise and the wall will lose its evenness.

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

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

Painting OSB boards

Preparing OSB walls for wallpapering

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

Before you start wallpapering, the wall must be primed. When working, use regular glue. However, for it to be more effective, it is necessary to add PVA to it.

Wallpaper on OSB wall

If necessary, you can make OSB plaster slabs

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 treatment, you should pay attention to some features:

The putty is applied to a clean surface. Presence of dust, dirt or traces of other things on the wall building materials may adversely affect the quality of the coating, so before applying the putty composition it is worth washing the wall well.
It is worth paying attention that the heads of nails and screws are recessed as deeply as possible, and it is better to remove the top layer with sandpaper. The surface for putty should be slightly rough.
It is better to treat the joints between the plates with nitro putty. This will ensure evenness and strength. As an alternative, you can use body putty, since its properties are designed for moving objects. 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 a layer of putty is applied.
After applying the composition, you can begin priming 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 boards.

Processing wall joints before puttying

OSB boards are universal material for covering the walls 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, humidity, fungus and insects.

In order for this coating to last as long as possible, it is worth considering several factors before attaching 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, coated with paint, varnish, or prepared for wallpaper. If technology is followed, the result will be smooth walls, which will be the basis for any interior and will delight its owner for many years.

OSB boards are one of the types of wood materials that are in demand among builders and finishers. Such boards are most often used for cladding indoor walls, 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 for completing finishing work. This technology has its own nuances. And before you paint the OSB board inside the house, you need to understand in detail the painting process and 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 wood chips as a base. It is glued together using polymers, adhesives, resins and other similar substances. During production, waste is taken from processing aspen, but some slabs can be created from other bases. These products are classified into several types according to their chemical composition:

OSB-1. Suitable for decoration where humidity levels are kept to a minimum. There are practically no moisture-protective components in the composition.
OSB-2. For normal level moisture.
OSB-3. A finishing option where there is a high probability of large amounts of moisture getting on the surface.
OSB-4. The 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, they choose category two or three. These are the ones you should focus on when learning painting tips.

What are the advantages of painting?

The use of properly selected paints and varnishes will give the owners of a house lined with OSB boards the following advantages:

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

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

A layer of varnish is used when painting the slabs is completed - then the pigments will not fade, and the base itself will not deteriorate as quickly.

Paint selection

How to paint OSB indoors, be it a residential building or summer house in the country? In principle, any composition will help to complete the painting. You just need to take into account that each material has its own characteristics when used. Let's consider several options for which paint is best to use:

OSB boards are created from resins and polymers, so solvent-soluble paints will be the optimal solution. There is no doubt that paint adhesion will remain at its maximum level, because the composition will penetrate inside the panel.

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

You can use alkyd enamels, take compositions for wooden bases. The materials penetrate the base quite deeply, but the coating is still durable. The alkyd mixture eliminates the need for such a step as varnishing, which means finishing becomes cheaper.

OSB is combined with coloring materials water-dispersed group. But, in this case, there is a high probability that the slab will swell under the influence of moisture after painting. This point is taken into account at the planning stage.

On video: methods decorative painting OSB panels.

Preparation of material

Proper preparation greatly influences how high-quality the final coloring result will be. The more thorough the preparation, the higher the adhesion of the material and base to other surfaces. Then the decorative layer will last much longer.

There are several important rules:

Painting can be done before installing the panels, if this is permissible. But this option negatively affects the appearance of the structure. Therefore, more often they still process the cladding, the installation of which has already been completed.
Sanding is carefully carried out on the surface of the slabs. Standard sandpaper works fine. This will not only allow you to disguise the structure of the slab itself, but also get rid of the layer of protection that often prevents the primer from penetrating deeper.

The OSB-3 variety requires particularly careful grinding. The wax-varnish coating cannot be removed so easily.

Pre-processing is performed in the following sequence:

We use putty to level the surface of any parts and places where screws are attached. An adhesive-oil base is the best choice.
The seams between the slabs are sealed with an adhesive-oil mixture. But the boundaries often become visible and remain a little noticeable. Advice from experienced craftsmen is not to waste time trying to disguise the material, but simply hide the seams themselves with the help of decorative elements.
When the putty dries, it must be sanded until the surface is perfectly smooth. How OSB can be covered is a separate question.

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

The simplest option is water-based varnish for wooden surfaces. Acrylic or acrylic-polyurethane compositions 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 they use not water, but white spirit or other similar means. Then the painted item will look better.
A good alternative is the so-called adhesive primers. Such compositions help create high-quality surface protection from paint.

Dyeing technology

How to paint OSB? The instructions look standard for those who have had at least one-time experience working with coloring compounds:

Take a brush of a suitable width to paint the entire perimeter of the primed surface or a separate slab. The thickness of the layer increases at the edges. The paint will still be absorbed, but the protection will improve. You can also use a roller, this will make the composition more evenly distributed.
The first, base paint layer is made of small thickness. The main thing is that when laying paint there is one direction. When water-based compositions are used, it is important that all the paint is distributed equally over different areas of the surface. It is impossible to completely get rid of the swelling of the OSB board. Therefore, it is important that this process remains at least uniform.
The panels must be dried thoroughly. There should be no sudden temperature changes or drafts inside the room.
The second layer is applied at least 8 hours after completion of the previous stages. Strokes should be applied perpendicular to the previous layers.
The operation can be repeated until the surface looks the same. Buildings are covered with compounds 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 minimal number of environmental factors. Therefore, the outer layer must meet less serious requirements. But even in such situations, the selection of material becomes of paramount importance, as well as compliance with the work methodology. Therefore, it is important to study the recommendations provided by professionals. It’s good if you have the opportunity to study as many tips as possible in advance along with training videos, especially if the work is performed by a novice master.

Experts' opinion 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 make do with only chipboard, fiberboard or plywood, today the ranks of traditional samples have been replenished with new analogues with improved properties, which makes them more suitable for certain types works

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

What is OSB board?

OSB is an oriented strand board. The material is panels made from pressed coniferous shavings And hardwood trees. Chip sizes can range from 60 to 150 mm.

OSB boards have high strength and density, thanks to the combination of several layers. 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 are impregnated with waterproof resins and paraffin. Used as a binder phenol and formaldehyde resins. The finished slabs have a uniform structure - without cracks, chips or cavities.

Read more about the characteristics of OSB in our article.

Is it harmful to use slabs 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 slabs of class E2 and E3. OSB panels marked E0 and E1 contain a minimum proportion of harmful components - from 6.5 to 10 mg. These are, as a rule, products of 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 purchasing “hazardous” material, it is worth considering some points that partially determine the correct choice of OSB:

the smell of stoves. With a high content of harmful substances, the material smells strongly of formaldehyde 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 would also be a good idea to inspect the packaging, if available. Products from serious manufacturers are usually labeled and equipped with information inserts.

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

OSP – quite suitable material for construction internal partitions rooms. The strength and light weight of the sheets are clear evidence in favor of this product. OSB boards can be mounted on a metal profile (like gypsum board) or on wooden frame.

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

Now as for partition installation diagrams, which will be considered using the example of a wooden frame:

Markings are made at the installation site of the structure. Lines are drawn along the floor and ceiling, which will serve as guidelines for installing horizontal guides.
Beams with a cross section of 4x6 cm are attached along the marking lines. If the wall will be subjected to serious loads (for example, you plan to hang furniture on it), it is better to use thicker bars - 5-8 cm. The guides are attached using dowels.
Vertical posts are installed, which are fixed to horizontal beams using metal corners and self-tapping screws.
After installing the racks, OSB panels are installed.

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

Screws are screwed into the middle of the slab in increments of 30 cm, along the edges - every 15 cm. The distance from the edge is 1 cm. A gap of 1 cm is left between the slabs 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 due to changes in humidity.

Making partitions from bars and OSB - watch the video:

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Internal wall cladding

This process, just like the procedure described above, requires the preliminary construction of a frame, for which the same wooden beams or profile. Now an example for arranging the sheathing will serve metal version , since the wooden frame was discussed earlier.

Finishing walls with OSB boards consists of the following steps:

The first step is, as always, marking.
Next, vertical CD profiles are inserted into the installed guides and also fixed - to the wall using self-tapping screws and metal hangers, to the horizontal guides - with drilling screws. The pitch between the posts is the same as in the case of a wooden frame.
To give rigidity to the sheathing, the vertical posts are reinforced with transverse profiles. At standard height For ceilings (2.5 m), it will be enough to install two elements for each span.

The installation of the slabs is carried out in accordance with the rules mentioned in the instructions for the construction of partitions.

How to finish the slab indoors?

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

Is it possible to attach drywall to OSB?

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

The main thing here is that The humidity level in the room was not high, since otherwise this may lead to deformation of the OSB and, consequently, the plasterboard sheathing. Self-tapping screws are screwed in around the perimeter and in the center of the gypsum board 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 damp rooms. The boards can be painted with any varnish intended for natural wood. The surface is cleaned of dirt, degreased, sanded and treated with a primer. Varnished OSB has a smooth surface, but retains its texture.

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

To get the best effect, it is advisable to paint in two layers.

Puttying with gypsum putty

Putty materials do not adhere well to wood. Therefore, it is best to use formulations that have maximum adhesion to wooden surfaces. These 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 composition, where glue, interlining and a little putty mixture are added. If this measure is neglected, the impregnation of the base may leak out. finished surface, causing the finish to become stained.

How to plaster a surface made of OSB boards?

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

The joints between the slabs are puttied and covered with sickle tape.
The surface is treated with a primer (you can take Knauf Tifengrund).
Apply the first layer of plaster and embed the reinforcing mesh into it.
A covering and leveling layer is applied on top.

Glass wallpaper sticker

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

Fiberglass wallpaper is glued to special compounds. In this case, the dry mixture “Methylane Fiberglass Premium” and the granular composition “Methylane Granulate Premium” are suitable.

Find out how to hang wallpaper on OSB from the video:

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How to glue ceramic tiles?

There are several ways to stick this on:

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

Liquid wallpaper

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

Behind 12 hours before work starts compound liquid wallpaper knead and leave in a plastic bag. The finished material is applied using a spatula in an even layer. from 3 to 7 mm.

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

Is it possible to sheathe a bathhouse and a garage inside with an OSB board?

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

In the first case, of course, you need to use only environmentally friendly brands of material.

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

As for the garage trim, here Suitable for OSB of any marking, because in non-residential premises caring for the environment is the tenth thing and the harmfulness of the material does not matter.

From all of the above we can conclude that OSB boards They are a universal product suitable for use under various types of finishing. This quality, combined with the strength of the panels, makes OSB worthy representative categories of sheet materials.

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

The use of OSB boards these days 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 the ease of its use. We will figure out for what purposes OSB sheets can be used, how to choose them and what to pay attention to when finishing the surface inside and outside of buildings.

The material is so reliable that it can be used to decorate the outside of a house.

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 high-quality material always has certificates confirming its safety for human health.

Options with increased moisture resistance withstand adverse effects much better

Wall cladding

OSB is ideal for interior wall decoration. 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 range from 6 to 30 mm, you need to choose the option that suits the specific situation. Most often, sheets with a thickness of 10-11 mm are used, but standards may vary. The quantity is calculated based on the area to be coated
Frame material	Here we will need either wooden blocks or a metal profile. You yourself must choose the option that is most suitable for your home. Metal is more expensive, but it does not deform due to changes in temperature and humidity; wood is cheaper, but the frame can “walk” when temperatures fluctuate. Wood is most often used, but this does not mean that you cannot install 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 conventional ones, which means they will ensure high reliability of the finish.

If you are purchasing OSB for finishing, it is better to purchase a material that has already been sanded 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 tools, in all cases you need approximately the same set; I will list everything you need here, but I won’t write about it in other sections, since this list will be relevant there too.

You need to have the following on hand:

If the sheathing or frame will be attached to concrete or brick, then you need a hammer drill with drills of the required diameter and length. It can also be used as a drill by turning off the impact mode and placing the chuck under drills for metal or wood. This universal option is the most convenient to date;
To twist individual structural elements and when attaching OSB sheets to the frame with self-tapping screws, you cannot do without a screwdriver - it is unlikely that you will be able to tighten the fasteners by hand, 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 a measuring tool. You can use a variety of devices: from classic options, such as a plumb line and tape measure, to high-tech ones in the form of a laser level and the same tape measure. Marking is done using a regular construction pencil, although you can also 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 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 controlling the plane. Most often, elements are placed close to the walls; here it is important to find the most protruding area and dance away from it when marking;
It is important to clearly determine the distance of the vertical posts; they should run along the edges of each sheet and in the middle, creating a stiffening rib. Most often, the spacing of the frame elements is approximately 40 centimeters; the thickness of the block should be at least 40 mm 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 wood with self-tapping screws, and to concrete and brick - with dowels. To strengthen individual sections (the same openings), you can additionally install metal corners. If you have a frame house, then the structure will already be there and there is no need to build anything, the main thing is that the insulation is laid and the vapor barrier membrane is fixed;

Finishing inside OSB boards can also be done on a metal profile for plasterboard

The material is fastened according to strict rules: there must be a gap of 10 mm between the OSB board and the floor, and the same is left along the ceiling. It is also important to place the sheets not closely, but at a distance of 3 mm from each other, this will prevent surface deformation due to changes in humidity, because the material reacts to them;

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

As for installation, screws or nails are placed every 15 cm at the joints of the sheets and at a distance of 30 cm on the intermediate posts. Along the edges, that is, 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 of the material.

This decoration of a room in the country looks very appropriate

Ceiling cladding

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

This option is not suitable for all rooms.

First of all, you need to secure the guides around the perimeter of the room; the easiest way is to pre-apply markings using a laser level or a 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 secure the remaining elements of the frame; here it is important to constantly monitor the plane and carefully fix each part of the structure. If the fastening is not made directly to the ceiling, but at intervals, then the easiest way to work is to use direct hangers for drywall; with their help, you can clearly align each rack and securely fasten it;

Indoor finishing can be done directly along the beams, but it is advisable to first fix the waterproofing material

As for fastening the sheets, the process is similar to that described above; there is no point in repeating all the requirements. Here we can only note the fact that if you have built a metal frame, then you need to use screws with a fine thread pitch, and not with a large one, like for wood.

The easiest way to fasten the material is with a screwdriver

When working with the ceiling, it is important to plan for cable routing in advance, and it is best to lay it in a special corrugated box to ensure safety.

Flooring

A floor made of OSB boards is not only reliable, but also original, so this option is becoming more and more common. As for the work process, 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 logs should be no more than 40 cm, if the thickness is 18-22 mm, then the logs can be spaced in increments of 50 cm, and if the thickness is 23 mm or more, then there may be space between the logs 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 OSB directly to it; you just need to first level the surface if there are uneven surfaces.

Next, it’s worth considering the location of the sheets; they are always laid perpendicular to the position of the joists, and all joints should be supported. 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 board with tongue-and-groove connection is ideal for flooring

Regardless of what base the floor will be placed on, the surface must be waterproofed; for this, a special film is laid that 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 head is located below the plane of the floor, this will simplify its further finishing. A deformation gap of 10 mm must be left between the slab and the walls to compensate for the reaction of the material to changes in humidity and temperature. Laying begins from the corner; this is also an important condition for reliable installation.

Work on fastening the material is not difficult

Using OSB for external walls

Due to the high moisture resistance, OSB-3 and OSB-4 can be successfully used for exterior finishing. 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 trimmed with wood paneling.

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

Exterior 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 influences and allow all its elements to maintain strength and reliability for as long as possible. The easiest way to fasten the material is with a special construction stapler;

The entire surface to be finished must be covered with film.

Next, you need to secure the outer sheathing; you can use either a block or a planed board for it; it is much more convenient due to its large width. The distance between the elements depends on the thickness of the OSB board; the most often used option is 10-12 mm, under which the sheathing should be fixed in increments of no more than 40 cm;
As for the arrangement of sheets, all the requirements that apply inside are also relevant outside. The space at the top and bottom should be at least 10 mm, and gaps of 3-5 mm should be left between the sheets, since temperature differences outside are greater, which means the material will expand more;

If you cover walls with OSB panels without gaps, then the material will constantly deform at the joints

As for window openings, it is best to cut them directly into the sheet, this produces 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 design the openings correctly

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

OSB is perfect for exterior finishing of a house.

Decorative coating options

Coloring

If you need quick and inexpensive finishing of walls or ceilings, then this option will be the most optimal solution; in addition to low costs, it is also good for the simplicity of the process. But in order to achieve the best result, you need to know a number of 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 recessed to a depth of 1-2 mm. Self-tapping screws are tightened with a screwdriver, and nails are deepened using a hammer, since driving them deep with a hammer is problematic;

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

It is recommended to round all the ends on the sheets using sandpaper, this is necessary so that there are no smudges of the composition along the edges. Of course, it is best to use materials with ground ends, but finding such can be very, very difficult;
All fastening points, as well as joints between sheets, are sealed with acrylic-based sealant. It is great for OSB and allows you to hide all problem areas. Another advantage of this type of composition is that they are easy to paint if necessary, unlike silicone sealants. After drying, all excess can be easily removed with sandpaper;

Acrylic composition is excellent for preparation 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 acrylic sealant in the color “Pine”; it matches best with the color of OSB and is almost invisible after application.

Before finishing OSB walls inside a house or outside a building, it is necessary to prime the surface. This is due to the fact that the surface has uneven absorption, and if it is not prepared, then any paint and varnish composition will lie unevenly. It is best to use acrylic-based compositions 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 the material has dried, you find that pile has risen on it, then you need to sand the base with sandpaper with a grain size of M150 or less. After all the defects have been removed, the primer must be repeated; only after this can we consider that we have qualitatively prepared the base for finishing;
Both paint and varnish can be used as a finishing coating, it all depends on the purpose of use and the type of base. If paint is used, it is best to use alkyd or acrylic based options, although water-based compositions are also 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 to obtain a reliable and durable decorative and protective layer;

The easiest and fastest way to apply paint is with a roller

If you are applying varnish, you can use different options. After all, it could be a ceiling made of OSB boards and its finishing will not be subject to wear, or it could be a floor that is under constant load, and if a weak composition is applied, it will quickly become unusable. Acrylic varnish is well suited for ceilings and walls, while for flooring it is best to use high-strength polyurethane-based options.

The polyurethane composition fills all uneven surfaces and creates a smooth, wear-resistant surface.

putty

There are many opinions among experts regarding how to carry out the work correctly, I will tell you about the option that I tried myself and which showed itself 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 should be recessed 1-2 mm below the level of the slab, and if this is not the case, all defects must be eliminated before starting other work;
Since OSB boards undergo special treatment, there is always paraffin or wax on the surface; these materials impair the adhesion of the compounds, so you must go over the surface with an emery block to remove the paraffin and make the material rougher. 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 sander, this will speed up the process significantly

Then you need 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 you don’t need to worry that the composition will fall off; it will withstand many years, because its strength is an order of magnitude higher than that of construction options;

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

When the composition has dried, you need to remove small flaws with sandpaper, after which you can begin priming the surface. For this work I use adhesive compounds; they adhere perfectly to OSB and create a rough surface that is suitable for any type of finish. Simply put, we get an excellent base for any purpose and can apply anything to it without worrying about 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, the work here is no different from ordinary work, you need to ensure the uniformity of the layer and carefully repair all unevenness, if any. After drying, the surface must be sanded using sandpaper or a special mesh. You can easily glue wallpaper onto such a base, you can apply paint, because you get a regular putty surface;
If you decide to apply decorative plaster on top, you can additionally strengthen the surface with fiberglass mesh, this will ensure maximum durability of the finish. It is recommended to install it for exterior finishing; it is not at all necessary inside.

This is what the structure of decorative plaster finishing looks like

Conclusion

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

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

OSB boards or otherwise OSB sheets are widely used for the construction of walls in houses, in particular in frame construction. Therefore, the issue of their external decoration is very relevant today. Moreover, not only from an aesthetic point of view, but also in terms of protecting the material from the negative effects of external factors (high humidity, sudden temperature changes, solar radiation and others).

The issue of installing OSB boards on walls outside the house is discussed in the article:. Here we will consider the following issue: finishing walls from OSB boards outside the house.

The issue of finishing walls from OSB panels inside a house is discussed in the article:.

Finishing OSB walls outside the house - the main methods

There are many different ways to decorate walls made of OSB sheets outside the house. All of them take into account the features of OSB boards, which are subject to the same deformations as wood. More details about the properties of OSB boards can be found in the article:. Among the main methods used for external finishing of walls made of OSB sheets are the following:

Painting

To paint OSB boards, you can use a brush or roller.

Applying plaster

Plaster allows you to extend the life of the slab and additionally protects it from fire. OSB boards can change their geometric dimensions over wide ranges due to changes in humidity and ambient temperature. If you apply plaster directly to the OSB board, it will soon become covered with cracks and peel off from the base. Therefore, two main technologies are used: the use of an intermediate layer and layer-by-layer application of plaster.

Expanded polystyrene or glassine can be used as an intermediate layer. Expanded polystyrene has good moisture insulation and further improves the thermal insulation properties of the wall. Glassine or bitumen cardboard has a low price.

The option without an intermediate layer is less reliable and after 2-3 years the plaster may begin to peel off, so it is usually recommended to use an intermediate layer.

Installation of decorative stone

Before starting work, the seams of OSB boards are filled with frost-resistant sealant, and the boards are primed.
Polystyrene foam is glued on top.
Then it must be filled with frost-resistant putty.
Then apply two layers of glue. Place the reinforcing mesh into the first one.
Place decorative stone on the second layer.

Sometimes decorative stone is glued without an intermediate layer in the form of polystyrene foam. This option is less reliable and after 2-3 years the coating begins to peel off.

Siding fastening

You can read more about the choice of siding and its installation technologies in a separate article:.

Decorative facade panels

Installation of decorative panels on the walls of a house made of OSB.