One of the materials most commonly used in construction to create various designs is oriented strand board or OSB. They are used as bearing, reinforcing building elements, for example, in the construction of walls, floors and roofing. It is said that these boards are suitable only for a subfloor, subsequently coated with some kind of finishing material. However, the boards can be painted which will create interesting design solutions.
OSB/3 is a moisture resistant board. This is a versatile material that can be used for interior and exterior use. These boards are used for cladding facades, for creating interfloor overlapping, for creating a subfloor, sometimes they are used as a complete covering under certain types of roof covering.
However, it is necessary to take into account that even OSB with high moisture resistance (OSB/3; OSB/4) are not waterproof. The term "moisture resistant" refers to glue which does not lose its properties under the influence of moisture. That is why any kind of OSB must be protected from water.
The edges of the boards can be smooth or tongue-and-groove. When fixing boards with smooth edges, it is necessary to leave gaps of 3–5 millimeters between them, because over time the dimensions of the boards change with changes in humidity and air temperature. In this case, the boards are fixed with screws (pitch 350-400 mm).
The boards with tongue-and-groove joints are suitable as a final covering, which, for example, is painted. The tongue-and-groove joints between them will be neat and almost invisible. And they require fewer screws. The boards with tongue-and-groove joints can also be used in arranging floating surfaces, for example, concrete.