The basis of the frame-in-wing structures for construction and finishing works most often serve metal profiles. About what the criteria for assessing their quality and what can the wrong choice or an unjustified desire to save, will be discussed in this article.
The popularity of the technology "dry" finishes using frame-safe structures that appeared in the late 90s. XX century, continues to grow. OSNA modern integrated systems - a frame of metal profiles, which replaced wooden rails. They are attached to the enclosing structures of the building, and then they are trimmed with sheet material (GLC, GKLV, GKLO, GVL IT.P.). Such technologies are used when building partitions, wall cladding and suspended or tail ceilings. Their advantages are quite obvious. When finishing "wet" and "dirty" processes (plastering, fastening with cement solutions IT.D.) minimized. It also significantly increases productivity and improves the conditions for conducting work. Agenial, it is possible to implement a wide variety of architectural solutions, including creating decorative curvilinear surfaces. Note that the use of structures with HCL for the construction of partitions, alternative brick or concrete, reduces the load on the bearing elements of the building. Consequently, it is possible to reduce the costs of their construction. For the same reason, light designs are in demand and in the repair of buildings built 100 or more years ago.
| 
| 
|
3, 4. Determine the cost of a multi-level ceiling from GLC will help the measureer of a specialized company. He will take care of the wishes and will offer an optimal solution. According to the sketches on the ceiling, the framework of metal profiles (3) will be formed and bypassed it with plasterboard (4). To get a warranty on the ceiling, painted intensive works need to be entrusted by the same company.
| 
| 
|
5, 6. On the perimeter, the frame is fixed in the ceiling guide profiles installed on the walls. Bearing PP profiles are placed perpendicular to PN profiles, between them at the same level.
| 
| 
|
7. Quickly and conveniently combine the carrying metal profiles with each other by the bending method with a bend in the process of mounting the framework will help the Special Bouncer "Stanka" (KNAUF).
8. When creating curvilinear surfaces, a plasterboard cannon-leaf arched was used. The minimum bending radius in a dry state is more than 1000 mm, in a wet - over 300mm. Gl-leaf is bent only perpendicular to the long edge.
9. The guides for the wave-like partition are ordinary profiles, but with an outcred shelves. After mounting the frame was trimmed by ordinary GCL. They were bent, pre-rolling with a needle roller and having impregnated with water with a wet sponge.
PP, PPN, PS and PN
The basis for the formation of the frame is most often used metal profiles made by cold rolling steel tape with a thickness of 0.5-0.8mm on profographic equipment. The length of the elements, as a rule, is 3000 or 4000mm, but the products of the other length can be made to order. Profiles are divided into rack (PS), guides (PN), ceiling (PP), ceiling guides (PNP or PNP) and arched (PA).Opinion of a specialist
The profile must be made of a steel sheet of optimal thickness, since the profile rigidity depends on this parameter, and therefore the entire design. In addition, the thickness of steel affects the strength of the retention of a screw in the profile, that is, provides reliable fastening to the frame. Experienced by our company's experts found that the optimal thickness of the steel profile is 0.55-0.6 mm. Hospital, some domestic manufacturers offer elements of a smaller thickness - 0.4-0.5mm, and sometimes you can meet the profiles with a thickness of 0.3 mm. According to Knauf (Germany), the screw must be held in the profile with an effort of at least 45 kg. 0,6mm thick profile provides this condition with a margin. If the thickness has become less than 0.55mm, the requirement is not performed. In order to significantly increase productivity, metal profiles cut and collect using a variety of devices and tools: electropotters, IT.D.D. Galvanized profiles do not need additional protection against corrosion.
Arkady Dashkevich, Head of Technical Department Knauff
PS. Serve vertical frame racks in interior partitions and cladding. Such a profile is mounted in a pair with a guide of the appropriate size, tightening them with screws or a bug. In this case, all frame racks must be deployed in one direction. Size size - 50/50, 75/50, 100 / 50mm.
PN Perform the function of the guides for the racking profiles. These products are also used to create jumpers between PS in partition frames and cladding. They are necessarily attached to the ceiling and floor. Size dimensions - 50/40, 75/40, 100 / 40mm.
PP Apply to form a frame of suspended ceilings and wall cladding. They are attached to a non-substantive basis using special suspensions - direct or with a clamp. To install suspensions with a clip edge clip bend inside so that they serve as a focus. Size dimensions - 60 / 27mm.
PPN (PNP) Used as guide profiles when mounting the frame of the suspended ceiling. It is to this frame that the sheets of plasterboard are subsequently fixed. Size size - 28 / 27mm.
PA Designed for the construction of frames of curvilinear ceilings, arched and dome structures. They are made to order from the PP profile and make concave or convex, with different bend radius. The maximum length of the arched arched profile is 6000 mm, which is due to the possibilities of production. The profile of the corner is not part of the frame design. Its appointment is to protect the outer sheets of plasterboard or gypsum fiberboard from mechanical damage, which is also important. Section size - 31 / 31mm. Please note that longitudinal corrugations are provided on the shelf shelves and ceiling profiles. They give profiles additional rigidity, and for PS serve as a guide when installing HCL and facilitate the work of the wizard when installing screws. In addition to profiles, each design includes suspensions for fastening PP to carrier bases, extension cords, connectors (single and two-level) for managing profiles in mutually perpendicular directions.
Opinion of a specialist
If there are doubts as a profile, try to twist it in your hands as if squeezing a wet towel. The profile that will easily be twisted is better not to use, because due to the insufficient rigid framework on the finishing finish, cracks will certainly appear. This may occur after 1-2 years or after such a wall is given a rather large man. The masters check the reliability of the metal profile otherwise: screws into it the screws, then take the passatology and try to pull out. If it breaks down, core metal, the product is not used. The fact is that when installing GLK (in the thickness of the last fasteners, it is necessary to drown so that it does not interfere with the subsequent putty) there is a risk of dragging the screws and disrupt them from the profile. Only entrusted to the work of professionals, you can be sure that they will correctly choose profiles and competently erected the construction regardless of its complexity.Sergey Patanin, Head of Gypsumontazh.Ru
Reliability primarily
What are the criteria for choosing metal profiles and should they stick to them if all the flaws subsequently will hobble? So often there are unscrupulous finishers, achieving a certain savings by purchasing cheap and, alas, poor-quality products. The result is the appearance of cracks on the finish finish layer, the deterioration of the sound insulation characteristics of walls, partitions and ceilings. The frame may be a story, and sometimes the design is constructed due to bad profiles.
One of the indicators of the quality of the metal profile, in many respects determining the durability of the frame structure, is corrosion resistance. It is no secret that products from galvanized steel are much less susceptible to corrosion than black steel products. Therefore, the highest quality profiles are made only from galvanized steel. When zinc, it acquires a protective layer.
The price of the metal profile is also capable of serve as a quality criterion, since it depends on the thickness of the steel, from which this product is made. In domestic building markets, if you wish, it is not difficult to find profiles worth from 12 rubles. For 1 p. m, while experts consider an acceptable price of 40 rubles. For 1 p. The profiles for GKL thickness of less than 0.35mm can be literally bend hands. Apply them is simply dangerous, especially when creating ceiling structures. For financial products, such manipulations are practically impossible. Professionalism of workers also plays an important role. They should know the features of the attachment of profiles to the surfaces and each other. Violations lead to loss of reliability of the entire design. The most sad thing is that the result of such shortcomings can be found not immediately.
| 
| 
|
| 
| 
|
Installation of a frame partition with a sound insulation material began with marking on the floor of the position of horizontal guide profiles, as well as the installation site of the racks and doorways. Then the markup was transferred to the ceiling and adjacent walls. The plane of the profiles that will be adjusted to the wall or overlap were sampled by a sealing polyurethane ribbon. After that, the PN attacked overlap using anchor mounts. The recommended step of the profile installation is at least 400mm (10). Upper and lower PN installed PS: first in the lower, then leveled vertically and started in the upper (11). The distance between the centers of the PS should be 600mm, from the back of the extreme rack to the wall surface - also not more than 600 mm. PS attached to Mon Self (13 / 4.2mm). Sheets of plasterboard (3000x1200mm) attached to the racks of self-draws (12). When cladding in two layers, it is necessary to avoid the coincidence of the joints of the sheets of the first and second layers. Before installing the second layer, it is recommended to sharpen the joints of the sheets of the first layer and the holes in the places of their attachment. To significantly reduce the noise effect, the rolled material from staple fiberglass "URSA Geo M-11 noise" (URSA) was used as sound insulation in the frame partition. At the same time, he served as effective thermal insulation. The width of the mat is 600mm, so with a standard step of 600 mm, it was not necessary to cut the material in the width - only in length (13). Mats "URSA Geo M-11 noise protection" have high elasticity. They were installed inside the mosper frame, without additional fastening. One side of the material is adjacent to the surface of the rack, the other enters into the depth of the P-shaped profile (14). The final stage is the installation of the second side of the cladding (15). After that, the partition was covered and completed the finish finish.
What how much?
There are three main types of systems in which metal profiles are used. The first - suspended ceiling, which bearing the design of which is a metal frame. The elements of the latter are ceiling (PP) profiles and the ceiling guide (PNP / PNP), and the plasterboard sheets are plates. For such a ceiling, it is easy to hide wiring and other engineering equipment, pave the heat and soundproofing material to make the room more comfortable for life. The price of work on the arrangement of 1m2 suspended ceiling - from 400 rubles.
The second type is interior partitions, the construction of which in most cases is more profitable compared to other structures (from brick or concrete blocks) due to their smaller mass and higher installation speed. The same layer of mineral insulating material inside the septum helps effectively solve the problem of sound insulation of adjacent rooms: living room and bedrooms, kitchens and children's. Its carrier structure consists of rack and guide profiles, from two sides of the trimmed GCL. Another important advantage of such interior partitions is the ability to quickly dismantle them and give the room the initial species, as well as to move. Price work on the construction of 1m2- from 450 rub.
Inacontament, facing distant from perfection of walls with "curvature" more than 5-6 cm. Such a design consists of a metal frame, on one side of the drywall sheets in one or two layers. Keep in mind: The distance between the racks should be 600mm when the framework of the framework of the standard GCL (1200mm wide) into one layer and 400mm - when wearing in two layers. Price work on facing 1m2- from 260 rub.
A variety of finishing coatings are applied to the finished surface of the ceilings, partitions or walls: paints, wallpapers, structured plasters, ceramic tiles.
The editors thanks the company Knauf and Gypsumontazh.ru for help in the preparation of material.