Gypsum-particle boards (GSP) - what is it?

Sheet and plate materials for facing external and internal walls, floors, ceilings, partitions are used in almost every residential or public building under construction. There are always new offers on the market.

GSP - what does this mean, how does this material differ from other similar ones, what are the features of its application?

Very simple components

The concept, technology and equipment for the production of gypsum plasterboards were first developed in Germany. It was there that always paid attention to environmental friendliness and reasonable savings. These two concepts formed the basis for the production and application of SHG. That this material, consisting of two very simple components, is clear from the title.

Waste of natural wood in the form of chips and shavings account for 82% of the total volume of SHG. The chipboard plate has a higher strength than fibrous due to the larger size of the constituent particles. In GVL (gypsum fiber sheets) and fiberboard (fibreboard), the base is fluff pulp, more often recycled paper, which has less reinforcing properties. Larger wood particles, pressed with an astringent composition, determine the best performance properties of the gypsum plaster board.

The binder used for these sheets is one of the most environmentally friendly and affordable - gypsum. It has been used in construction since the time of Ancient Egypt. Its volume fraction is 15%.

Clear technology

Gypsum-cutting plates are manufactured without the use of complex physical and chemical processes. In the mixture of wood and gypsum, water (2% of the total mass) is added, the semi-dry mass poured onto the metal sheets and pressed to the desired thickness. Curing and drying pass naturally, in the absence of high temperatures.

The plant located near the gypsum deposit in Peshalani in the Nizhny Novgorod region is today the main producer of SHG. That this determines a very reasonable price is quite logical. The use of modern equipment guarantees high quality products, the main parameter of which is the stable geometry of the plate.

Types and assortment

The size of the sheets produced is optimized for use along with other types of plate materials. GSP plate is produced by thickness 8, 10, 12 mm, length: 0.5, 1.5, 2.5, 3 m, width: 1.25 m. In addition to the standard, a moisture-resistant GSP is produced, in which standard hydrophobizing substances are added to the binder.

Sheets of half and one-and-a-half-meter length are convenient for use on a "dry screed" on the floor. Plates of thickness 8 and 10 mm can be grinded, that is having a better surface for subsequent gluing and laminating without preliminary preparation.

Comparison of plate materials

The physical and mechanical characteristics of SHGs express its main advantages in comparison with other sheet materials. With comparable values for noise insulation, heat resistance and many other qualities, it is better than GVL and gypsum cardboard, performs protective functions. For strength gipsopruzhechnaya plate is second only to DSP and glass magnesia, but much cheaper than them. Although the low cost of GPS is a relatively relative concept.

Benefits

This material is, as it were, specially produced for fans of "green" construction technologies. It is difficult to find a material more natural in composition. No toxic adhesives, formaldehyde resins, no harmful impregnation is included in the SHG. What does this mean? It can be safely applied for the construction of the most "clean" facilities, for finishing the premises of kindergartens, schools, hospitals, sanatoria, etc. The composition of the gipsoprizhechnogo sheet allows it to be also a means of regulating the humidity in the room. Excess water vapor is absorbed by gypsum and wood, which makes the microclimate more comfortable.

Good quality of heat and sound insulation, fire safety. But the main thing that distinguishes SHG advantageously is that such a covering of the frame of the wall is much stronger than the usual drywall. Gypsum-cutting sheet can not be pierced with the same ease as GCR, even if you mount a wall or partition into one layer. In such a wall, you can safely screw in screws or other fasteners to hang shelves, lamps or other elements of the interior. Its strength is similar to chipboard, but, of course, chemically more safe for humans.

Clear advantage is the very good surface of the wall, which does not require expensive and time-consuming preparation for finishing. If you can not damage the "face" of the plate during transportation and installation - you can immediately paste wallpaper or film, apply a decorative paint layer. It is possible to pre-stock the GSP (like chipboard and melamine slabs), while the constructive material can acquire the quality of decorative panels.

The most convenient material for a "dry screed"

For the device of floors, the technology of "dry screed" using SHG is increasingly being used. What is it? A photo with instructions to even a non-professional will help to understand the course of the process and the main advantages of the technology. On the overlap, the film is covered and a layer of loose insulation of fine fraction (usually claydite) is poured. Then, at least two layers of SHG are laid on the leveled beacon surface (it is more convenient to use slabs 0.5-1.5 m in length), the layers are glued together with PVA glue and additionally connected by self-tapping screws. Naturally, it is necessary to avoid overlapping of the seams of the upper and lower layers.

The use of SHG sheets is more economically justified than the use of special slabs. The lack of a large amount of "wet work" saves time and money, and the "pie", which is obtained with this method, keeps the heat well and does not conduct extraneous sounds.

disadvantages

The main disadvantage is the inconvenience in working with GPS. What it is? First of all - a lot of weight. A 3-meter-thick sheet weighing more than 56 kg weighs more than 56 kg, which means that you can not avoid complications during unloading, during installation, especially when climbing to a height. The ceiling is definitely more convenient to cover with thinner sheets.

Gypsum-cutting plates are not sugar in processing, they are difficult to saw, plan, drill. For a circular saw, it is necessary to use disks with carbide tacks, an electric jigsaw can be used, but the saws have to be changed more often than usual. Cutting a bulgarian faster, but it raises such a dust that in a small room it will be a serious problem.

Conclusion

Gypsum plasterboard is the best option when performing certain designs, in particular, "dry screed" for floors. GSP is a material for those who attach importance to the absence of harmful emissions into the atmosphere of living rooms, the strength of walls made using wireframe technology. It is for those who are not afraid to expend extra efforts.