OSB finish on the outside. Interior decoration of walls made of OSB boards: preparation, painting, application of stain and wallpaper

Multifunctional, comfortable materials for many construction work, can be viewed in photos and videos, oriented strand boards are used. Simple manufacturing technology makes it possible to produce OSB for interior decoration of four types of basic and three special types of slabs.
Flat fragments geometric shape Wood chips or shavings are glued layer by layer into sheets of products. The optimal number of layers of shavings or chips ranges from three to four.
These boards are of a higher quality than conventional chipboards, or rather, they are modified, modern version. If funds allow, and technical problems require their use, then OSB is preferable to materials such as chipboard or plywood.

When considering qualifications and deciding how to decorate OSB walls, you should pay attention to the characteristics of the slabs.
So:

The first class includes OSB boards, characterized by application and use in an environment with low humidity.
The second type of materials is suitable for use as structural elements during construction in dry rooms.
The third type of qualification is used for the manufacture of structures in high humidity.
The fourth type of product is used for the installation of structures that can withstand significant mechanical loads in conditions with high humidity.

OSB boards are widely used in construction. The manufacturing technology eliminates internal defects characteristic of chipboard sheets (uneven filling or voids), which prevents OSB boards from shrinking or deforming.
So:

Finishing the walls from OSB will not only protect the house from dampness and insulate it, but will also minimize additional finishing work.
Moisture-resistant OSB board is used in the construction of frame-panel houses.
Its moisture resistance allows you to make reusable formwork from this material.
It is used as a base for external wall cladding and for interior work when finishing country houses, wooden houses from rounded logs, beams and cottages.
The installation of sheathing and rafters for the roof cannot be done without OSB slabs. They are able to work under significant load and withstand the weight of the roof itself, even from natural tiles, snow, wind.
Do you need to lay floors or level them? OSB board is being used again, creating a flat, solid base for plank floorboards, coverings or carpets.
An important point is the alignment of the joints of the slabs; they need to be leveled if necessary.

Attention: OSB boards from not all manufacturers can be used as underlying layers for floor coverings, and the panels are laid with the smooth side up immediately before flooring.

Additionally, there is no need to coat the slabs with protective varnish or paints, because they are sufficiently protected by special impregnation.
Processing a slab is no more difficult than processing wood; it holds nails and screws well. OSB boards are not susceptible to rotting and are not affected by fungus; in addition, they have good decorative qualities.
OSB panels are successfully used for furniture production, being an excellent substitute for solid natural wood, but the price of products made from OSB panels is much lower.
The fairly light weight of the material is convenient for DIY finishing or painting and construction work

How to speed up the home finishing process

The desires of people who are engaged in the construction of their own frame houses, who can’t wait to move into their own corner, separate from their lovely neighbors, are understandable. A natural question arises: is it possible not to do the rough sheathing and start attaching finishing materials directly to the frame posts?
The instructions from specialists contain recommendations and an explanation of why this should not be done. To keep a house warm, it needs to be insulated.

The upper and lower slopes of the frame, together with the cladding, form spatial rigidity, and they are mandatory elements in the design of frame houses. Without bevels, the frame retains its mobility even with sheathing, just as with bevels, but without sheathing, you can imagine the general picture of the consequences yourself, using your imagination.

Rough exterior wall cladding

There are quite a lot of materials used for rough cladding and there is plenty to choose from. Board, SML, DSP and OSB boards.
All these surfaces require finishing with siding, plaster with a layer of polystyrene foam or mesh. Some advise leaving the board cladding as a finishing touch, but then it is necessary additional processing wood, and also a device for wind-hydroprotection of the walls under the boards.

The main area of application of OSB boards is the arrangement of structural elements of a building: roof, floor, walls. At the same time, the installation of OSB boards has some features, knowledge of which will help make the cladding high-quality and durable. Before you begin installation, you need to decide on the choice of hardware that will play a major role in fixing the OSB.
Content:

Nails and screws used

There are many types of nails that are used depending on the location of the slab and its weight:

finishing: used where camouflage is desired and the likelihood of pulling out is minimized. Often used in conjunction with glue.
round without a cap: needed when laying floors, when installing frame structures and when fastening slabs with a tongue and groove connection
with a cap: used where there is no need for camouflage;

There are also special nails that have a ring or screw type cutting. Such hardware holds the nailed slab better, but is difficult to pull out.

It is best to fasten the panels using screws designed for working with wood - the reliability of fastening increases dramatically. In this case, it is possible to use a much smaller number of screws compared to the number of nails. If necessary, the screw can be easily removed by switching the screwdriver to reverse.

Roof finishing

Before installation, you must make sure that the sheathing is parallel or rafter legs. The surface must be leveled, and failure to comply with this requirement leads to the impossibility of a reliable tongue-to-groove connection.

If the slabs prepared for installation are exposed to rain, they must be dried before installation.

Before installation, make sure that attic space has adequate ventilation (the total area of the ventilation openings must be at least 1/150 of the total horizontal area).

The largest part of the operating load should fall on the long axis of the slab. The short ends must be joined on the roof supports. The long sides are joined on auxiliary supports, the connection method is tongue-and-groove or H-shaped brackets.

If the edges of the slabs are smooth (i.e. there is no tongue and groove), then an expansion gap of 3 millimeters should be left. This will allow the material to change dimensions during temperature changes without compromising the quality of the coating.

The slab must lie on at least 2 supports (the connection should be on them). Below is shown the dependence of the distance between the sheathing elements on the thickness of the OSB (for roofs with a slope of no more than 14 degrees):

1m: slab thickness from 18 mm;
0.8 meters: thickness from 15 mm;
0.6 meters: thickness from 12 mm.

When laying the slab next to the chimney, it is necessary to comply with the standards established by SNiP. High-quality fastening of OSB slabs to rafters is possible using ring nails from 4.5 to 7.5 cm long, or spiral nails 5.1 cm long. The distance to the edge of the slab cannot be less than 10 mm.

Installation of OSB on walls

Installation can be done in two ways: horizontally or vertically.

When going around the windows, doorways It is necessary to leave a gap of approximately 3 mm.

If the distance between the wall supports is 40-60 cm, it is recommended to cover the walls with OSB slabs 1.2 cm thick. If thermal insulation is necessary, it should be arranged before attaching the slabs. As a heat-insulating material, preference should be given to mineral wool.

To fasten the slabs, two-inch spiral nails (51 mm) or ring nails with a length of 4.5 to 7.5 cm are used. They must be driven in every 30 cm into the intermediate supports. At the joints of the slabs, nails are driven in every 15 cm. At the edge, nails should be driven in increments of 10 cm (no closer than 1 cm from the edge).

Dilatation gaps should also be left:

between the top edge of the slab and the crown beam: 1 cm;
between the bottom edge of the slab and the foundation wall: 1cm;
between slabs that do not have a tongue-and-groove connection: 0.3 cm.

Laying on the floor

Before laying the material, it is necessary to do waterproofing (if the floor is on the first floor).

OSB boards should be connected on joists. If there are no grooves or ridges, maintain the same gap of 3 millimeters. If you plan to install a floating floor, then leave a gap of 1.2 cm between the wall and the edge of the slab.

Must be laid perpendicular to the joists. The long edges of the slabs must be connected to each other by means of a groove and a tongue, and in their absence - with H-shaped brackets. It is advisable that the connection rest on an auxiliary support. The short sides of the slab must be connected with joists. The dependence of the thickness of the slab on the distance between the lags is shown below:

from 1.5 to 1.8 cm: the distance between the logs is no more than 40 cm;
from 1.8 to 2.2 cm: no more than 50 cm;
from 2.2 cm: distance – 60 cm.

For fastening, the same types of nails are used that are required for OSB wall cladding and roof installation. On intermediate supports, nails are driven in increments of 30 cm, in places where the plates join - in increments of 15 cm.

To increase the rigidity of the entire coating and give it a holistic look, the slabs can be glued to the joists. It would also be a good idea to glue the tongue-and-groove joint.

It is necessary to use only synthetic glue (compositions based on water based are ineffective due to the presence of paraffin in the structure of the slab).

OSB finish

After fixing it will be needed. The most common method is putty. This method allows you to seal all the cracks at the joints to prevent moisture penetration. Plus, quality work will help prepare the slabs for possible further finishing (for example, varnishing or painting).

To obtain an aesthetically attractive look, it is better to use slabs that have been specially polished by the manufacturer. In this case, you will have to spend less time and material on future finishing.

Before carrying out work, you should go over the slab with finely notched sandpaper, and then cover the surface with a primer (it should not be water-based). Next, you need to choose what to putty on OSB. It is better if the composition you choose is colorless. To do this, use one of the types of putty:

gypsum based;
acrylic;
latex.

After completing this stage, you can think about how to finish the OSB walls. For example, this could be varnishing. The slab should be varnished in 3-4 steps, allowing each layer to completely dry. Varnishing will add shine to the surface and provide reliable protection against moisture penetration.

Another finishing method is painting. Use paint that does not contain water. Afterwards, it can even be laminated or finished with a special film.

Most home finishing methods are available after the cladding has been completed. OSB walls stove in compliance with the technologies and recommendations of the manufacturer.

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 growing demand for this material, it is worth considering what the advantages of OSB boards are 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 internal work. 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 OSB walls associated with additional difficulties. Firstly, the outer layer does not have any adhesive properties. Secondly, some ingredients contain grease and other substances that can bleed through exterior finishes and ruin the final look, so options should be considered decorative processing material before finishing the OSB walls inside the house.

Finishing with paint or varnish

Painting or varnishing walls is one of the budget ways to decorate the walls of rooms. 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 mounting points of the plates for incompletely driven nails or screws that are screwed in. Such minor imperfections can lead to rust stains showing 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 the 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 him greater efficiency PVA must be added 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. The presence of dust, dirt or traces of other building materials on the wall can 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 completing the 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 a universal material for cladding 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 the 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 slabs are most often used for cladding indoor walls, small buildings in the form of summer houses, and also 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?

Application of correctly selected paint and varnish materials 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 be seriously affected by 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 made from resins and polymers, so solvent-soluble paints will become 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 absorption level. As a result, a reliable layer is formed, 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 of the 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– do not 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. 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 waterborne 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 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 minimal amount 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)

Usage sheet materials in construction and home decoration – this 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 of work.

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 deciduous 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 content in the material synthetic resins, emitted 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?

OSB is a completely suitable material for the construction of internal room partitions. The strength and light weight of the sheets are clear evidence in favor of this product. OSB boards can be mounted on metallic profile(like gypsum board) 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 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 are used. 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. With a standard ceiling height (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?

Wooden interior finishing country houses as in the photo it can be completely different in cost and design. For finishing surfaces OSB sheets are used various materials. 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 slabs 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.

For getting better 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 base impregnation may bleed onto the 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 The composition of the liquid wallpaper is mixed and left 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, since in non-residential premises, concern 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 are a universal product suitable for use with various types of finishing. This quality, combined with the strength of the panels, makes OSB a worthy representative of the category 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 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 your needs. 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 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. Such universal option is the most convenient to date;
For twisting individual structural elements and for fastening OSB sheets You can’t do it without a screwdriver to the frame with self-tapping screws – it’s unlikely that you’ll 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. A wide variety of devices can be used: from classic options, like 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 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 suburban 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 possible The best decision, 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.

Let's figure out how exterior cladding is made from OSB boards, first 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 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 you cover walls 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 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

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 low costs It is also good because of the simplicity of the process. But in order to achieve best result, 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 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;
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 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. Acrylic varnish is well suited for ceilings and walls, while for floor coverings 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 in any way 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. It's tedious, but very important stage which is a must 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 on top decorative plaster, then you can additionally strengthen the surface with fiberglass mesh, this will ensure maximum strength 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 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!

Good afternoon,
A number of discussions in the forum and in personal correspondence regarding the use of OSB as an external wall cladding for a frame house led me to think that it would be nice to answer, first of all, a number of questions for myself:
- under what conditions will OSB sheathing not cause moisture accumulation in the house?
- is a vapor barrier necessary for cladding? outside OSB frame.
Many people build this way, our partners insulate such houses with eco-wool, and everyone seems to be happy, but the worm of doubt gnaws at them. And if so, then you need to open an Excel sheet and try to simulate the real situation.
So,
The following house is taken as an example:
- area 120m², 12x10, one-story,
- ceiling height 2.8m
- family of 3 people, a person sleeps for 8 hours, is awake for 8 hours, the rest of the time is at work
- 5 relatively average plants that require intensive watering
- cooking/cleaning time – 1.5 hours per day
- we exclude bathrooms from the calculation, since they must have their own ventilation
- add another “backup” source of moisture – 500 g/day
- ventilation is carried out twice a day, replacing 35% of the air volume
From open sources we take the following data on steam generation by residents of the house:
Human, at rest - 40 g/hour
A person engaged in housekeeping - 90 g/hour
Flower in a pot (medium size) - 10 g/hour
Cooking and cleaning, washing - 1000 g/hour
In total, the total generation of water vapor in the house is 6320 g/day.
The volume of the house is approximately 336 m³, the amount of “generated” moisture remaining in the air after ventilation is 2670 g, or 7.95 g/m³.
Let’s now imagine that it’s winter outside and -10. At 100% water humidity the air contains 2.37 g/m³. And inside the house there is much more moisture: 2.37+7.95 = 10.32 g/m³. By the way, this corresponds to 51% relative humidity at +22C, which is good.
However, the inequality of water vapor concentrations on different sides of the wall leads to the transfer of vapor outward through the enclosing structures.
Let's try to estimate what the vapor permeability of the walls should be in this case. I assume the floor is sealed, so water vapor will escape through the walls and ceiling, the total area of which in the example of a house will be about 240 m².
In this case, 10.9 g of water should pass through 1 m² of surface per day. A little.
An OSB-3 board 20 mm thick passes 60 ng/(Pa*s* m²), respectively, in our case 5.39 g of steam will pass through 1 m² per day. That is, a frame house covered with such a slab needs vapor barrier or more frequent ventilation.
A 12 mm stove will already pass 8.98 g of steam, a 10 mm - the required 10.8 g.
From the example, I can cautiously assume, if I am not too mistaken in my calculations, that the use of OSB-3 as external cladding in frame wall may occur even in the absence of a vapor barrier. However, I think that in this case it is necessary to have thermal insulation that can well withstand the transfer of water vapor through itself, and also have relatively low air permeability. I think such insulation materials include ecowool and its derivatives, probably polystyrene foam, wood-fiber insulating boards.
I hope I wasn't too boring and useless
If you are interested, I can send you a plate with calculations.
Sincerely yours,
P.

A very convenient and multifunctional material for various construction works is oriented strand boards. Since the production technology of these slabs is not complicated, for interior finishing work the master can choose a specific option from four types OSB boards or consider special types of these boards.

What are the sheets of these products made of? Everything is simple - wood chips are used (flat fragments are used), shavings: these materials are glued together and the result is actually an excellent finishing material. Three or four layers of chips or shavings – these are the indicators that can be called optimal. Installing OSB on walls is more preferable than using the same chipboard.

However, oriented strand boards are a kind of modification of wood-fiber material, some of its modern analogue. If finances allow, it is better to choose OSB for facing work (plywood or chipboard are increasingly being abandoned today).

Scope of OSB, classification of boards

Before considering the classification of slabs and deciding which is the best OSB for finishing walls, it is important to pay attention to the characteristics of such a material.

Types of OSB boards

Here everything is as follows:

OSB boards of the first class - they are usually chosen for rooms where there is a low level of humidity;
Type two - the material can be safely chosen for dry rooms, it is even used as a structural element during construction work;
Type 3 OSB – these boards are used in rooms where there is a high level of humidity;
The fourth type of such products is used for cladding structures that can cope even with significant mechanical loads. Moreover, we are talking about conditions where there is a high level of humidity.

Application area

One thing can be said about the scope of application - installation of OSB is a truly urgent task, since such boards are used in many construction aspects.

It’s just that this material has such a manufacturing technology, due to which all internal defects are simply eliminated (at the same time, Chipboard sheets they appear very often - voids, uneven fillings). Due to all this, OSB is a more preferable option - it does not deform and does not shrink.

And now in detail - where exactly can this material be used??

OSB cladding is often a very profitable solution for walls. Due to this approach, the house receives reliable protection from dampness, while also gaining additional insulation. What's best here: in additional finishing works there is no need after installing OSB;
In the construction of frame-panel houses, OSB boards are usually used, which have a high level of moisture resistance;
Since the material has such valuable quality, it makes a decent reusable formwork;
It is used as a base when making external cladding walls, as well as in interior work - if finishing of wooden country houses, cottages (made of timber, rounded logs) is carried out;
OSB boards are your faithful assistant if you are making sheathing or rafters for the roof. This material can work even under serious load - it will definitely withstand the weight of not only the roof itself, but also all accompanying loads (wind, snow) - even if natural tiles are laid on the roof (a material that weighs nothing);
If you need to level the floors in your house or lay them from scratch, here again you can pay attention to the installation of OSB. It’s just that such a slab is an ideal option for creating a very strong, even base. It’s better not to find it under plank floorboards, carpets or other coverings;
Pay special attention to the process when you need to adjust the joints of the slabs to a plane. If necessary, they must be equalized - without this there is no way.

An interesting point - not every manufacturer can use OSB boards as underlying layers - in the case of floor coverings. And the panels are laid so that the smooth side is facing up.

What else does a master need to know?? Following:

Apply additional protective covering it is not necessary in the form of paint or varnish - the material initially has excellent protection in the form of a special impregnation;
Processing slabs is not that difficult - about the same as regular wood. Screws and nails adhere perfectly to the surface. OSB boards are not afraid of rotting, fungal influences, the decorative qualities of such material are excellent;
OSB panels today are often used in furniture production - after all, they are an excellent alternative to natural solid wood (but in terms of cost, they are significantly more profitable);
The material does not weigh that much - therefore it is perfect for finishing, construction, painting work and more.

How to finish a house faster

It is quite logical that any owner wants to move into his home faster - especially if the construction is carried out independently. Private cottages are located separately from neighboring buildings - so in this design you don’t have to worry about neighbors.

Here a completely justified question may arise: maybe you shouldn’t do the rough sheathing - but immediately attach the finishing OSB materials directly onto the frame posts?

Is this approach to the matter allowed, or is it excluded?

If you pay attention to the instructions compiled by professionals, it will immediately become clear: you cannot do this. There will also be reasons for this conclusion. Simply, it is important to insulate the house - only in this situation will it be comfortable (especially since winters in the Russian Federation are cold - almost throughout the entire territory).

Why are frame bevels required at all - lower and upper? Everything is simple here: they form spatial rigidity - together with the cladding. They can also be called mandatory elements if we consider the design of any frame structure.

A frame that does not have slopes will retain its mobility even with cladding - as is the case when there are any. However, if there is no cladding, you can imagine what the consequences may be.

External rough wall cladding

Today, many different materials are used for rough cladding. There is definitely a choice here - everyone will agree with this. Pay attention to at least these options:

Board;
OSB boards.

Any of these surfaces needs finishing: this could be facing with plaster - with a mesh or a layer of polystyrene foam. There is an opinion that even the boarding can be left as a finishing touch - but in this case the wood will need to be processed additionally. Hydro-wind protection of the walls is also installed under the boards.

You must take into account the following: it is not recommended to finish the frame with boards - without rough, preliminary covering with OSB boards. Otherwise, there is a risk that the boards will come loose in the fall or spring. In addition, this is important for the spatial rigidity of the frame.

You will get fewer joints due to the area of OSB sheets - which cannot be said about working with other materials. OSB finishing is usually made with a material whose thickness is 11-13 mm.

Let's take a closer look:

The OSB boards are fastened to the racks so that there is a joint in the middle. And there should be a small gap between the plates - three to five millimeters is enough;
The sheet completely covers the lower trim;
The top frame is closely related to the number of storeys of the house. It will be completely hidden - and the edge of the OSB slab will be aligned with the edge of the trim if the structure has only one floor;
When the building consists of two floors, the sheet is positioned as follows: it must fit onto the racks of both floors at once. But somewhere in the middle of the sheet the top trim overlaps. This condition cannot be called mandatory, but if it is met, the rigidity of the structure increases noticeably, which benefits the structure;
Sheathing with OSB boards when fastening to a window opening is carried out in two-story houses, should be produced in a single sheet - this is exactly what the professionals advise. Then all the joints can be moved to adjacent racks outside the racks of the opening. They simply cut through the slab window hole– there is nothing complicated in such work. Here https://krepezhmaster.ru you can purchase fasteners for absolutely any purpose;
When horizontal or vertical jumpers are made in the frame, a very convenient joining of the slabs is obtained. In the event that these jumpers have the same cross-section as the racks - and this often happens;
Spiral nails are selected for fastening. Self-tapping screws are also suitable - 0.5 or 0.45 cm long. You should also not refuse combined fasteners (both nails and self-tapping screws) - such a solution is considered to be of very high quality.

Remember that basic rules When performing fastening work, it is imperative to comply.

Namely:

It is customary to fix the finishing of OSB slabs in intermediate areas every 300 mm;
After 150 mm, fix the places where the slabs are joined;
After 100 mm it is necessary to sew the outer edge.

To prevent cracks in the material due to too zealous fastening, a distance of 1 cm is maintained from the edge of the slab to the place of fixation (a little less is possible).

A gap of 4-5 millimeters is left between the plates so that they do not warp. The fasteners are driven 4-5 cm into the rack;
The part of the OSB board that is vulnerable (one might say this is the "Achilles' heel" finishing material) – ends. To ensure the protection of these areas, gaps are provided, which are called expansion gaps (between the crown beam and the upper edge, also between the foundation wall and the lower edge). Here the gap will be 10 mm. And between those slabs where there is no tongue-groove, 3 mm is quite enough;
To seal these expansion gaps, an acrylic-based sealant is used. It is important that it carefully fills all the cavities - and that this work is done evenly;
Wind protection, waterproofing - all these tasks will be performed by a superdiffusion membrane, which also has the property of vapor permeability (this indicator is 750 g/m² or more).

Use polyethylene various films, glassine - not recommended by masters. It’s just that these materials have a low level of vapor permeability; all excess moisture must be reliably ventilated.

Also, you should know:

The superdiffusion membrane is installed depending on what the rough lining materials are and what the final finish is. For example, the membrane is often attached closely to the insulation - to the frame studs;
They make a sheathing (here they use wooden slats, the cross-section of which is 2 by 5 or 3 by 5 cm. Thanks to this design, it will be achieved required clearance. Then you can finish the surface with OSB boards, SML, DSP or sheathe it with boards;
From the inside of the room, you can use film to create a vapor barrier for the walls. The material is installed in such a way that it fits tightly enough to the insulation. A construction stapler is used for fastening. The joints are overlapped - 150-200 mm; the joints must be taped.

For such work, you can choose the simplest adhesive tape - there is no need to use building material. Vapor barrier adhesive tape will also work.

To perform a vapor barrier, you can use foiled polyethylene, which will not thicken the wall thermal insulation (basic). Foam material is also often used for this task - this practice is common in our time.

Finishing the structure inside

Which is better: OSB sheathing or plasterboard cladding? Many are clearly inclined to favor option number one - when it comes to interior finishing work in the house. It is quite difficult to keep the frame posts in a completely level state - when work is underway, the same applies to drywall.

It’s just that the sheets of this material are softer when compared with osb boards. They will easily repeat all the irregularities - so then you will have to work hard to get a completely flat surface - more layers will need to be applied to level them.

OSB board is an order of magnitude stiffer in structure than plasterboard sheets, so all flaws can be smoothed out to a certain extent. Afterwards they begin to carry out work related to finishing.

Watch a video about how OSB boards are used for interior decoration. This material will definitely be useful if you do not have much construction experience.

OSB-3 boards and roofing work

Roofing work is a very popular way to use materials such as OSB boards. By the way, to cover the roof with OSB-3 slabs, a material thickness of 0.18 cm is sufficient.

In order:

Products can have both a locking edge and a straight edge. The first option is more preferable;
The distance between the load-bearing beams should not be more than 609 mm - this applies to both the organization of sloping and flat roofs;
Whether the slabs are capable of expanding is of great importance. For each linear meter It is customary to leave a gap: 2 mm is quite enough (believe me, this is enough);
When laying slabs with smooth edges, the gap is made a little larger - 3 mm. Leave it around the perimeter of each slab - this is the only way to achieve optimal results;
Nails are used to attach OSB to the roof. Attached to supporting supports. There should be a distance between them: 10 cm or even more;
The finishing of OSB boards is attached with nails - they should have a length that exceeds the thickness of the board by two to two and a half times (or even more) - this is quite normal.

If the interior decoration is done using OSB panels, the following can be noted: a slab made of polished panels will look better if appearance is very important in your space. It is better not to use such slabs for finishing. ceramic tiles or wallpaper - this is what the manufacturers themselves recommend. And it’s best to listen to their opinion!