In recent years, increasingly began to use the technology of a ventilated facade in the decoration of external walls. This technique, together with insulation, provides ventilation. Such designs transform the appearance of any building. Facing solves a whole range of problems that face such structures. The system provides protection against precipitation and adverse factors, insulates and vaporizes, and also protects from noise. As the facing material for such systems, facade metal cassettes are used, which can have different designs and sizes.
Description and dimensions of metal cassettes
The above facing material is a metal sheet with curved edges. They are coated with polymer colored paints that protect the products from corrosion processes. Material for production is:
- Cink Steel;
- brass;
- copper;
- aluminum.
Anodized aluminum is most often used in its natural form, so in products it is recognizable by a shiny light gray silver surface. However, such products are also covered with polymer paints. Metal cassettes are made by stamping sheet metal, which has a thickness ranging from 0.7 to 1.2 mm. Coloring of sheets is carried out according to powder spraying technology, which ensures uniform layer thickness. The service life of such panels increases significantly due to such a coating.
Together with metal cassettes, crate elements for fastening on the facade and fasteners are used. Front metal cassettes can have a height in the range from 280 to 1040 mm, while their length is equal to an indicator from 200 to 2500 mm. For U-shaped and angular products, the minimum length is 200 mm, and the sum of the lengths of the sides does not exceed 2500 mm.
Mounting technology
Installation of metal cassettes is carried out in several stages, the first of which involves the preparation. To do this, the remains of the old coating are removed from the walls. It is important to remove all structures from the surface, namely door frames and window frames. If you find serious defects, then you need to get rid of them. Then the wall should be tested for strength. After all, the weight of the frame system will be impressive. For this, a fragment of the frame must be fixed with two dowels, after which a load is applied to it. A massive element can be hung on this fragment. If the load is sufficient, then you can continue to work.
Hollow brick or foam concrete will not be able to ensure the reliability of fastening of such a design, therefore, metal cassettes are not used for their finishing. Front metal cassettes can be installed on the wall, the density of which is not less than 0.6 t / m 2 . At the second stage, marking is carried out, then the brackets are fixed and the insulation is installed. The master will have to build a guide frame, only then can the installation of finishing material begin.
Layout Recommendations
The surface of each wall must be marked using a laser level. This device will provide the desired accuracy. Marking should start from the bottom of the building and correspond to the size of metal cassettes. The guides must be fixed at such a distance from each other so that the products enter between them firmly and are fixed securely.
Absolute evenness of the external surface will be ensured by the fixation of the metal frame. If there is even the slightest deviation, this will jeopardize the possibility of building a facade or create a skew that will catch the eye and spoil the whole view.
Installation of brackets and insulation
Before the front metal cassettes are installed, it is necessary to fix the brackets, which are fasteners installed on the dowel. They should not fall into the seams between panels or bricks, because this will reduce the reliability of the frame system and can provoke the destruction of masonry. Under the brackets, it is necessary to lay gaskets of paronite, which will guarantee protection against freezing of certain sections of the walls. This reduces the susceptibility to frame deformation.
Front metal cassettes, the dimensions of which will allow you to calculate the required amount of material, necessarily include the presence of a heater in the system. After installing the brackets on the wall, a waterproofing layer is stretched, which is overlapped and fixed by the brackets. Next is a layer of insulation, which can be mineral wool or expanded polystyrene. The seams between the sheets of insulation are filled with foam. You can fix the insulation to the wall with dowels with wide caps, but sometimes glue is also used. At the final stage, a windproof film is spread over the insulation .
Creating a guide frame and installation of metal cassettes
Front metal cassettes, the installation of which can be done by you yourself, are installed only after the guide frame is ready. The crate starts from the bottom. For corner parts of the house, special metal cassettes should be used, the use of which eliminates the need to install corners. It is important to consider that this decorative material may have a closed or open type of fastening. The installation method to the crate is slightly different in these two cases.
Features of installation with an open type are expressed in the fact that each subsequent product is superimposed on the previous one with a curved edge and is fixed with rivets or self-tapping screws. If you decide to use a closed type of mount, then the next cassette should dock with the underlying one, decorating the mount. It should be fixed with screws in the upper part. Installation in this case will be somewhat more complicated, but the design will turn out to be more durable and reliable.
Specialist recommendations
Front metal cassettes, photos of which are presented in the article, as mentioned above, can be installed using one of the existing methods. If you decide to use invisible fasteners, then you have to prepare a hat metal profile, as well as self-tapping screws that will allow you to form a ventilated facade quickly and efficiently.
Curved surfaces, which have holes for fasteners, allow repairs to be carried out in a short time and without the use of special tools and expensive equipment. If we are talking about hidden fasteners, then the products between themselves will be fixed according to the Lego designer principle with the help of edges, which will allow for reliable installation.
Manufacturers and cost
Front metal cassettes, the production of which is well established in Russia, may have different costs. For example, the manufacturer "Stalfasad" offers products whose price is 1150 rubles. The size of the products will be equal to 1160 x 720 mm. Another manufacturer - Metstal - offers its products at a price of 890 rubles. per square meter. In this case, we are talking about metal cassettes, the thickness of which is 0.7 mm. If the thickness increases to 1.2 mm, then the price for 1 m 2 will be 1060 rubles.
Conclusion
Front facade metal cassettes, the dimensions, the calculation of which will allow you to determine how many products you need to purchase, can be made of different materials. However, to determine the number of sheets, it is first necessary to calculate the area of the surface being trimmed, as well as the area of one product for decoration. After the first value is divided into the second, which allows you to understand how many products to be purchased.