The façade is one of the most demanding parts of a house in terms of finishing. Its surface is exposed to a wide range of threats, including mechanical and climatic ones. To cope with loads of various kinds will help the facade of the profiled sheet, which can be performed in any configuration, depending on the characteristics of the house.
Which profiled sheet is suitable?
Cold-formed steel sheets with trapezoidal corrugation are recommended for outdoor decoration. In addition to zinc coating, polymer treatment is also required, which will protect the material from aggressive chemical influences. Especially for facade decoration, products are produced with the marking C8, C10, SP20, HC35, etc. As for the dimensional parameters, the length can vary from 50 to 120 cm, the width is 90-120 cm, and the height of the corrugation is about 8-15 cm. The average weight of a profiled sheet per 1 m2 is 3.7-4.2 kg. The mass depends on the thickness of the sheet, which, in turn, varies from 4 to 6 mm. You should immediately calculate the aesthetic qualities of the material, since we are talking about the most prominent partHouses. The design choice, in principle, is not rich in this segment, but you can give preference to a color scheme that will optimally fit into the overall composition of the home ownership with a roof and garden and landscape objects.
How much does a professional sheet cost?
Material prices are calculated for each 1 m2. In this case, the specific amount will depend on the thickness of the product, the height of the corrugation, external processing and the nuances of production technology. The cheapest sheets are sold for 150-170 rubles/m2. This is the C8 brand in the budget segment, which is characterized by a small thickness of up to 4 mm and a modest corrugation height of up to 10 mm. Obviously, thicker products are more expensive. For facade finishing, for example, sheets up to 6-7 mm thick can be used with a corrugation height of 35 mm. How much does a professional sheet with such characteristics cost? On average, 300-400 rubles/m2, but, again, the subtleties of processing will matter - the quality of the polymer and zinc coating.
Installation technology
It is pointless to attach bare corrugated board to the facade wall by itself. Ventilated façade technology is used to give the structure sufficient protective capability. What is its meaning? A multilayer functional base is being executed, the completion of which will be the profiled sheet. As part of such a facade, there are at least three technological levels:
- Profile structure - load-bearing frame.
- Insulating materials (insulation,hydro, steam and sound insulation).
- Protective coating.
Brackets, anchor hardware, self-tapping screws, guide profiles, etc. are used for the power bonding and fastening of elements of a ventilated facade from a profiled sheet. The formation of such a complex “pie” is required not only to support insulating functions, but also to ventilate the cavity behind the metal cladding. This is the most important condition for maintaining the integrity of the wall base, which, thanks to air circulation, is protected from mold and mildew.
Preparation for installation work
Before proceeding with the direct installation of the base fasteners, the following steps should be taken:
- If it is planned to insulate the facade directly through the wall surfaces, then these works are completed first.
- Measurement of the facade with drawings and diagrams is being taken.
- According to the results of measurement, deviations in the plane of the target surface, the passage of parapets, ceilings, ledges and drops, etc. are recorded.
- If the facade is provided with elements of the drainage system, lighting equipment or other equipment, it must be released for future access to the surface.
- Provides a free approach to the workplace. There must be enough space to work with large format facing sheets.
How and how to cut profiled sheets?
Experts recommend two materials for such purposes - an angle grinder (grinder) and metal shears. Bulgarian cut easier, faster and more convenient. But there are significant downsides. Firstly, the risk of burning the edges, and secondly, this operation itself is extremely unsafe. Angle grinders are not designed for this kind of work. This method will be justified only if you need to get a large amount of material without any special claims to quality. But this can hardly be attributed to the finishing of the facade with a profiled sheet, which will have to become the “face” of the house.
As for scissors, the work with them is more difficult and painstaking, but better and safer. Initially, it is recommended to paste over the cutting line with adhesive tape or construction tape so that the polymer-coated edges are not damaged during the cutting process. After the operation is completed, it is necessary to grind the edges (this operation can be entrusted to a grinder with an abrasive nozzle), and then treat them with a protective paint and varnish coating. Otherwise, after a couple of years, you will notice traces of corrosion along the edges of the cut.
Marking the surface of the facade
To calculate the volume of the required material and the specific parameters of individual segments, mark the working area. For convenience, scaffolding or scaffolding is being prepared. In any case, marking is carried out along the entire front of work with fixing the installation control points. On the surface of the walls, the markings are carried out by optical measuring devices. It is advisable to use a circular laser level orat least a point level with two projecting beams - vertically and horizontally. Further, indelible paint is applied along the contours of the facade cladding with a profiled sheet. Marking accuracy is extremely important, since not only the parameters of the coating segments, but also the points for placing fasteners will depend on it.
Installation of fasteners
Holes are made on the marked fixation points of the supporting frame. The diameter and depth should be calculated from the anchors. At this stage, it is important to minimize the thermal bridges that form due to the brackets in the wall. To do this, the installation of paronite gaskets is carried out at the junction of the fasteners to the surface.
Directly drilling is performed with an electric drill or puncher - depending on the material of the wall base. At the same time, the brackets can be installed in different ways depending on the geometry of the wall in a particular area. Balancing in the levels of the lathing in the future will allow you to align the profiled sheet facade with respect to the red surface, which may have deviations in the plane in different areas. On average, the leveling effect can be 3-5 cm.
Laying insulating materials
After installing the brackets, you can proceed to the insulation measures. At a minimum, a layer of insulation must be installed - in the form of a rolled material or a plate. Installation is carried out in the direction from the bottom up. Segments of plates are fixed as closely as possible to each other without large gaps. If, due to structuralSince there are still gaps in the material, after installation it is necessary to seal with sealant. The fastening of the facade cladding with a profiled sheet with insulation is carried out by dish-shaped dowel-anchors with spacers. On average, 6-7 pieces are spent per 1 m2. For the convenience of work, the plates should be drilled in advance at the appropriate attachment points. After the heat insulator, you can lay a wind and moisture protective film. The panels are laid with an overlap and fixed with mounting self-adhesive tape.
Installation of corrugated board
Sheets are fixed with self-tapping screws along profile guides. Twisting is desirable to perform with a screwdriver, but after setting it to the “do not pressurize” mode. If there is no such function, then it will be necessary to visually determine the moment when the twisting stops without the risk of deformation of the sheet. Installation is carried out from left to right and from bottom to top. The first row is mounted and aligned with the drainage system, if present. The vertical position of each segment is checked by a level - you can use the same laser level.
An important question follows - how to sheathe the facade of the house with a professional sheet with a vertical installation, so that the corrugation is protected from moisture penetration? At a basic level, in principle, the penetration of moisture, dirt and precipitation under the profiled sheet should be prevented by slopes, cornices and soffits under the roof. But for insurance, you can also use special additional strips, installing them on the profile segments on top of the ventilation facade according to the principle of mini-visors.
After installation
Producedfinal sealing of joints, seams and holes at the junction of metal sheets and the supporting structure with profiles to the wall. In the door and window openings, sealing elements are mounted that form the boxes. It is important to choose devices with a polymer coating for such purposes, which will protect the working mechanics of the valves from negative influences. Next, slopes, ebbs, platbands and other fittings with functional devices are installed.
Advantages of corrugated board finishes
Considering the profiled sheet as part of the ventilation facade, we can distinguish the following advantages:
- Versatility. Thanks to protective coatings, this finish can be combined with various types of insulators and fasteners.
- Small mass. The modest weight of the profiled sheet of 4-5 kg/m2 does not create the risk of overloading the structure, as is the case with porcelain stoneware and metal-plastic finishing materials.
- Proper performance of the main functions of the facade. Galvanized steel itself provides a wide range of protective properties for the walls of the house.
Conclusion
Trends in the modern design of private houses and cottages are increasingly gravitating towards the principles of environmental friendliness, naturalness and naturalness. This is also the reason for the return of traditional wooden cladding as a means of facade design in different variations. And against this background, the metal coating loses significantly, since it does not create an image of a natural texture and, from an environmental point of view, there is littlediffers from the same metal-plastic. And yet, from the point of view of practicality, the technology of facade cladding with a profiled sheet is the most profitable. This design with a ventilation effect and a layer of insulation contributes to the creation of a favorable microclimate in the house and protects the walls from major threats. In addition, at the price of a ventilated facade from a profiled sheet, it is quite cheap.
