OSB – 3, the characteristics of which are of interest to many home masters today, has recently gained great popularity. The scope of these paintings is very wide, including OSB is often used in the construction of the base for the installation of the roof lining and shingles.
Characteristics of OSP – 3
OSB – 3, the technical specifications of which comply with safety standards, can be used in the interior of residential premises. The OSB – 3 class assumes the possibility of using the material for external and internal works. Humidity may be moderate, which distinguishes the canvas of this class from OSB – 1 and OSB – 2. The last two options do not have such an impressive density and do not even undergo a little increased humidity.
OSB – 3 is based on wood chips. Cloths are obtained by chip pressing, when they undergo high pressure and significant temperature. The glue base here is waterproof resin. Plates consist of several layers, wood chips in each of which are differently oriented. OSB – 3 - a plate whose characteristics deserve attention - is much stronger and more elastic than wood. The material is free from knot defects.
Application area
OSB-3, whose characteristics are impressive, can be used in the construction of frame buildings, as well as in the process of cladding the wall frame system . The canvases are also convenient when leveling floors, as well as floors. The builders found another OSB: in the construction of a constructive system of stairs and landings.
Leveling the floor with OSP – 3
OSB – 3, whose characteristics allow the material to gain more and more impressive popularity, can also be used for leveling the floor. They are laid on a pre-mounted lag system. In this case, between the sheets at the time of flooring, a temperature gap should remain, the minimum width of which is 3 mm. Whereas between the slab and the wall the width of this groove should be equivalent to 12 mm. Cloths should be located, directing the main axis at an angle of 90 ° with respect to the lags. The pairing of the short edges of the OSB should be located on the lags. Long edges that do not rest on the bars should have a crest-groove lock, a bracket or some kind of support.
If the material is laid on logs installed on the ground, the soil should be well waterproofed. For fastening the plates, self-tapping screws should be used, which can be replaced with spiral 51-mm nails. Whereas if ring fasteners are used, then their length should be equal to 45-75 mm. The fasteners are installed in increments of 30 cm, as for intermediate supports, the fasteners are installed at the joints at a distance of 15 cm.
OSB – 3 - a plate, the characteristics of which will determine whether it is worth buying, - can be glued to the lag surface, this will increase the rigidity of the system. It is recommended to use mounting adhesive made on the basis of chemical solvents. In areas of locks, a crest-groove must be applied with adhesive of type D3.
Tools and materials
To carry out work on leveling the floor or arranging the overlap, it is necessary to prepare some tools and materials, among them there are:
- self-tapping screws;
- slabs;
- lags;
- waterproofing.
Installation of OSB – 3 on the walls
OSB – 3, the characteristics of which allow installation on all types of surfaces, can also be used for leveling walls. Between the canvases, as well as around the openings, a gap should be left with a minimum width of 3 mm. When covering the walls, professionals advise using OSB, the thickness of which is 12 mm. If there is a need to make additional insulation of the system, then you can buy mineral wool, and apply mineral plaster on top of the plates.
OSB – 3 plywood, the characteristics of which attract home craftsmen and professional builders, is mounted on the wall using self-tapping screws or 51-mm nails. When installing fasteners, you should not approach the edge of the sheet more than 1 cm.
Installation of OSB on the roof
OSB-3 boards, the technical characteristics of which allow them to be used during outdoor work, should be fastened only after checking the evenness and strength of the rafter legs or the lath of the crate system. If the mentioned elements are not installed smoothly enough, this will affect the appearance of the roof. When wet cloths in the rain to use them is not recommended until dry. When installing over the attic or any other space that is not heated in the winter, you should worry about ventilation. Holes for this should not be less than 1/150 of the entire horizontal base.
Given the structure of the canvas, it is necessary to fix it with a long edge at a right angle to the rafter leg or the elements of the crate. The pairing of the short edges of the sheet should be on the roof supports. As for the long edges, they also need to be secured or stapled where necessary. A gap should be formed between the material with straight edges, the minimum width of which is 3 mm: this will exclude deformation during expansion. The plate must be covered with at least two supports.
Installation in the presence of a chimney
At the time of fixing the material, the craftsmen should stay on the rafters or the elements of the crate. If the roof system has an opening for the chimney, then the lining must be moved away from the chimney to a distance approved by building codes. In this case, it is also necessary to use self-tapping screws or nails. Install fasteners should be at a distance of 30 cm, placing the screws on the rafter legs or components of the crate. As for the mating areas, the distance between the screws should be equal to 15 cm.
OSP-3 2500x1250x9mm "Kalevala"
The OSB – 3 2500kh1250h9mm Kalevala slab, the characteristics of which will determine whether you should use it for your own needs, is a modern material. It surpasses plywood and chipboard in quality . The base of the canvas is not only chips, but also technological resins. As a rule, OSB is made from aspen, as this rock is less exposed to the external environment. The cost of the canvas is 550 rubles. During installation, it is worth counting on the fact that the weight of one sheet is 17.3 kg. It is quite simple to saw, cut, plan, and if necessary, even grind it.
Do not be afraid that the material will not hold nails in itself, in addition, the plates can be glued together by a joinery, which will allow you to get a fairly strong connection. If you intend to use the material outdoors, it is recommended to cover it with varnish.
By covering the roof of the OSB – 3, you will get a system that has excellent heat and sound insulation qualities, which is very important for private buildings when it rains or when birds are over-active. If you have a business for the production of upholstered furniture, then the described material will find its application there in the construction of buildings.
A sufficiently wide area of use has allowed OSB to gain popularity. This material is gradually replacing analogues, because its quality characteristics attract the attention of consumers.