OSB-plate for a floor: technical characteristics, the sizes, features of laying
OSB-plate for the floor is a relatively new material, which represents It is today an alternative to particleboard and plywood. In frame construction, OSB also plays a huge role, it is used for warming standard residential buildings. Especially often with the help of such plates form and align the floors.
Some characteristics of OSB
OSB-plate floor is available for sale in a wide range. This is a material of several layers of glued from pressed wood chips, which is mixed with waterproof resins. Gluing is done in three layers. In the outer layers of wood chips stacked along the length of the product, while inside - perpendicular. Such an arrangement made it possible to achieve strength and strength. Among other things, mutually perpendicular fibers allow the holding elements to be held.
OSB-plate for the floor may have a low moisture resistance, therefore, this type is used exclusively for interior work, which provide for the further operation of the material in dry conditions. On sale you can find more and universal OSB-plate, which is able to undergo high humidity, both inside and outside the premises. This material is characterized by a high margin of safety and allows it to be widely used in construction.
The most moisture-resistant and durable plates are used to form structures in conditions of high humidity. OSB-3 slabs are commonly used for leveling and building floors, which are subject to stress from equipment, furniture, and the movement of people. If necessary, the alignment of small defects of the floor is enough to use the OSB plate, whose thickness is 10 mm. But if the base has impressive potholes and bumps, then you should purchase 10 or 15 mm canvas.
If you want to create a floor on logs, then the thickness of the plates should not be less than 25 mm. The described plates are used as a solid and smooth base for modern coatings, such as:
Among the main functions of oriented strand board should be highlighted:
- creating a floor surface;
- base leveling;
- floor insulation;
Quite often, these sheets are used to form a subfloor on logs. Flooring can be carried out on the top or bottom side of the lag. The surface can be leveled on a concrete or wooden floor, creating a flat base for laying the finishing coating.
OSB-plate for the floor also has high thermal insulation abilities, because 90% of the material consists of natural wood chips, which is characterized by high thermal insulation properties. As a result, it does not allow heat to volatilize, it remains indoors. You can also use these plates as soundproofing, because they are able to absorb any sounds.
Plate OSB, technical characteristics and the harmfulness of which will be discussed in the article, resistant to moisture. Depending on what type of coating was used during the production phase, this parameter can vary from 12 to 25%.Not to mention also the mechanical strength. The most reliable are plates of the 3rd and 4th classes. The strength of the material along the transverse axis varies from 1200-1800 N / mm2. Mechanical strength along the longitudinal axis is 2500-4800 N / mm2.
The weight of one plate can vary from 12 to 43 kg. If you want OSB-plate on the floor, the thickness of this material must be found. This parameter is equal to the limit of 6 mm. Among other features should be distinguished environmental friendliness. According to laboratory studies, the content of harmful components in the composition does not exceed the permissible limits. But the price of the plate will depend on the technical characteristics and varies from 420 to 780 rubles. a piece.
The use of moisture resistant plates
If you are interested in the OSB moisture resistant plate, the use of this material should be studied by you. For example, the canvas can be used for covering the external and internal walls, flooring and in the manufacture of I-beams. The material is perfect for the manufacture of CIP panels and roofing, as well as the formation of the base under a soft roof.
The OSB plate is moisture resistant, the use of which is described in the article, is also used for the manufacture of temporary fences. Moisture resistance parameters quite often interest consumers.For its measurement determine the thickness of the plate, and then placed on the day in the water. Then the canvas is measured. According to the standard, the swelling of the moisture-resistant plate thickness is 15%.
The OSB plate is moisture resistant, the dimensions and price of which are mentioned in the article are presented for sale in various parameters. However, the most popular sizes are as follows: 2440 x 1220 mm. You can purchase a European equivalent with the following parameters: 2500 x 1250 mm. You can buy a slab with grooved edges, which is just used to make the foundation of floors, the dimensions of such products will be equal to 2440 x 590 mm.
In addition to the most common, there are non-standard sizes. For example, the Austrian company Kronoshpan produces plates in the following sizes: 2800 x 1250 mm. But at the Belgian company Norbord NV you can find plates with dimensions equal to 1200 x 2700 mm.
The OSB plate is moisture resistant, the dimensions and price of which are mentioned in the article and should interest you, are produced with a certain thickness up to 40 mm. However, for the subfloor the most commonly used plates, the thickness of which is 6 and 9 mm. For a solid base, it is most convenient to use 12 mm webs. For the device of floors, by the way, are used also 15-mm, also 25-mm plates.
The described parameter is selected depending on the step between the lags on which the plates are laid. At a distance of 0.5 m, you can choose 18-mm canvas. But if the distance between the lags reaches 60 cm, then the thickness can be equal to 25 mm.
What varnish for OSB plate to choose
If you are thinking about the question of how to cover the OSB-plate on the floor, then you should remember that it is better to refuse oil varnishes. Their disadvantage is the long process of lacquering and the complexity of the work. Turpentine varnishes should not be acquired either, since they will be ready to serve on the floor for only a few months. But alcohol paint materials suitable for the RSD. They do not give a strong odor, which will disappear altogether as the alcohol evaporates.
If you still have not decided for yourself how to varnish OSB-slab on the floor, then you should pay special attention to alkyd compounds that are excellent for this purpose. They are made on the basis of pentaphthalic or glyphthalic resins, which are soluble in organic substances. The coating will dry for a very long time, and the second layer can be applied only 36 hours after the application of the first.
Urethane varnishes are also suitable for OSB, they allow you to create a wear-resistant and durable coating on the surface.If you prefer a pure urethane varnish, it will have an average wear resistance, which the manufacturer sacrifices for the sake of increasing the elasticity of the film. Therefore, the canvas acquire the ability to endure abrupt and frequent changes in humidity and temperature.
Acrylic varnishes can also help in the process of upgrading the RSD. However, the load on the surface should be small, and the requirements for the microclimate are very high. Therefore, the installation of OSB slabs on the floor, which you later want to cover with acrylic varnish, should be carried out in bedrooms or other rooms where the base will not be used so intensively.
Laying OSB-plates on a concrete floor
With the help of the OSB plate it is possible to create a rough surface, on which the finishing coating is laid. Debris and dust should be removed from the concrete base with a construction vacuum cleaner. It is important to ensure that the surface is clean, which will ensure adhesion of the mounting adhesive.
Before laying the OSB slab, the technical characteristics and harmfulness of which were discussed above, it is necessary to coat the concrete base with a primer. This will promote better adhesion of the adhesive to the base.The primer will create a film on the surface that will not allow the coupler to not become dusty when using the RSD.
In the next stage, the plates are laid out on the surface, if necessary, the material can be cut with a circular saw or jigsaw. On the wrong side should be applied parquet glue rubber-based. To do this, use a notched trowel.
Method of work
Sheets are glued to a concrete base, in addition they are fixed with dowels. In order to ensure the retention of fasteners, around the perimeter it is installed every 30 cm. You may be interested in how the OSB-plate is calculated on the floor. To do this, determine the area of the floor, and after the area of a single product. Then the first value is divided by the second, which allows you to understand how many sheets should be purchased.
Additional recommendations for work
If the floor is sufficiently level, and the work is carried out in a dry living room, then it is enough to install dowels only at the corners of each plate, but this is true if you use high-quality glue. Between the tiles when laying leaves a distance of 3 mm.Along the perimeter of the room it is necessary to ensure a gap of 12 mm. It is necessary to compensate for temperature and humidity expansions during operation.
After the rough floor of the OSB-plate has been laid, you can clean the canvas from debris and dust, and fill the joints between the slabs and the wall with foam. It is left to dry for about 3 hours. Excess material protruding beyond the surface is cut with a sharp knife.
You can process the OSB-plate under different finishing coatings. If the canvases are planned to be used as finishing floors, then paint and varnish can be applied. But linoleum and carpet are perfect if you are looking for roll materials for refining the premises.
To place the joints between the plates were located flush with the rest of the surface, you need to get rid of the errors with sanding paper. Elastic sealant will allow to fill the compensation gaps. You can lay on OSB also vinyl, ceramic, rubber, also quartz vinyl tile. Suitable as a finishing coating also laminate.