Sandwich panels are a relatively new building material. It began to be widely used in interior decoration relatively recently, about 10-15 years ago. It consists of plywood, metal and PVC or fiberboard, between which there is a special layer that acts as a heater. To produce such a layer, mineral wool, polyurethane foam or expanded polystyrene are used. The dimensions and colors of the sandwich panels are diverse, however, all manufacturers comply with certain conditions for compliance with regulatory parameters (length, thickness and width). The most popular are two- and three-layer sandwich panels, they are often used in the construction of country houses or for warming residential premises.
Types of Sandwich Panels
- Corner plates. This type of panel is used to give the room a finished look. They can be rectangular and rounded, the architectural design of the building affects the choice of shape. Corner models protect walls from freezing well and increase the level of fire safety.
- Wall sandwich panels. Mainly used for cladding and insulation of facades, the erection of load-bearing structures and partitions. In the manufacture of some panels, steel sheets are used that affect the fire resistance of the building material. Professionals advise using plates with a thickness of 0.7 mm or more, they have the best thermal insulation properties. The cost of sandwich panels of this type ranges from 800 rubles to 1700, mainly this price difference is due to the type of material.
- Three-layer models of plates are made of specially treated galvanized steel, its thickness is 0.5-0.8 mm. Some panels may be coated with a polymer composition. This type is considered the most modern, while it has the highest technical characteristics. Three-layer sandwich panels are lightweight, do not require additional strengthening of the supporting structure, their installation is quick and quite simple. They have a huge range of colors and a wide selection of claddings. The use of such material will help significantly reduce the costs spent on building a house.
- Roofing sandwich panels. Thanks to their use, the roof turns out to be durable, fireproof, with excellent heat and sound insulation properties. The service life of such material is practically unlimited, it is estimated for decades. Installation is carried out according to a certain technology, which allows you to stack sheets with an overlap. This method prevents the deformation of the plates in the summer. The cost of sandwich panels for the roof varies from 900 to 1900 rubles, this is mainly due to the difference in the thickness of the material.
Specifications
Sandwich panels, like other building materials, have certain technical characteristics:
- Parameters. Thickness affects strength and thermal conductivity. Length and width can be different, the main thing is that these indicators correspond to each other. For example, for internal partitions, sheets of 1500 x 1000 mm are used. Standard sizes of sandwich panels: 3000 x 1100 x 30 mm, 3000 x 1100 x 25 mm, 3000 x 1100 x 15 mm.
- Weight. This indicator is mainly affected by the thickness of the plate and the type of material used for insulation. The lightest is polystyrene foam. There is a specific table of the ratio of the weight and thickness of the panels, which are considered to be standard sizes, the calculation is made for 1 running meter. For example, 155 mm / 25 kg, 82 mm / 20 kg.
- The strength of the panels is taken into account during the construction of large enough buildings in order to correctly calculate the possible compression and bending of the plates during the construction.
- Coefficient of thermal expansion. When constructing such structures as wholesale warehouses, shopping centers, it is necessary to take into account the indicators of this parameter.
Benefits and Features
The use of modern technology has allowed the creation of sandwich panels, the types of which have undeniable advantages over other building materials. The main ones are:
- The construction of the building in a short time.
- Ease of transportation, you can do without the services of companies involved in cargo transportation.
- Construction is possible at any time of the year.
- When installing a sandwich panel (views may differ in plate thickness) there is no need for additional strengthening of the structure.
- High rates of sound and heat insulation qualities.
- The material is environmentally friendly to humans.
- It does not give in to deformation, decay, defeat by bacterial fungi; moisture resistant, tolerates high temperatures, fireproof.
- The cost of the material is quite low when compared with wood or brick.
The main subtleties of installing sandwich panels
The installation process is carried out using special technology, taking into account certain features of fastening a sandwich panel. The types of these installation works are quite affordable for a small number of workers. Regardless of the size of the building, construction can be completed in a short time. For a perfect end result, installation must be carried out strictly according to generally accepted requirements. Before starting work, it is necessary to remove the protective film from the inside of the panel, and the outside remains until the end of the entire construction. This will protect the material from dirt, dust and possible damage.
Wall panel mount
If during installation there is a need for fitting the panel to a certain size, then you can use a saw with a fine-toothed blade. However, in order for the cutting process to be carried out quite accurately, it will be necessary to put something soft under the plate, for example, felt or foam.
The types of fastening wall panels may vary at the discretion of a specialist. However, the main principle can be distinguished, which is as follows: the panel is pressed tightly against the structure, and connectors are used for fastening, the so-called sandwich panel assemblies. The installation itself can be either vertical or horizontal, it depends on the features of the structure and installation method.
Sandwich Panel Roofing
This type of work is carried out only after the completion of the walls. If you have certain skills, then installing a roof will not take much time. The installation itself takes place directly on the runs with the help of special screws. The fastening of the sandwich panels is overlapping. Each plate has a castle connection, due to which the joint is tight and reliable, completely does not let moisture through. The general roofing sheet turns out to be almost continuous, which significantly increases its technical characteristics.
Sandwich panels (types: roofing, wall and corner) are by far the most popular and popular among consumers. It is the undisputed leader among similar building materials. They earned such a high praise due to their distinctive properties and quick installation, which can significantly save on the construction of the building.