Sandwich panels: types and specifications. Roofing and wall sandwich panels

Sandwich panels are a relatively new building material. It became widely used in the decoration of premises relatively recently, about 10-15 years ago. It consists of plywood, metal and PVC or fiberboard, between which there is a special layer, which serves as a heater. To make this layer, use mineral wool, polyurethane foam or expanded polystyrene. Dimensions and colors of sandwich panels are varied, but 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 the warming of living quarters.

Types of sandwich panels

• Corner plates. This type of panels is used to give the room a finished look. They can be rectangular and rounded, the choice of shape is influenced by the architectural design of the building. Corner models well protect the walls from freezing and increase the level of fire safety.
• Wall sandwich panels. Mainly serve for facing and warming facades, erecting bearing structures and partitions. In the manufacture of some panels, steel sheets are used, which affect the refractoriness of the building material. Professionals advise to use plates with a thickness of 0.7 mm, they have the best properties of thermal insulation. The cost of sandwich panels of this type ranges from 800 rubles to 1,700, mainly this difference in price is due to the grade of material.
• Three-layer models of plates are made of specially processed galvanized steel, its thickness is 0.5-0.8 mm. Some panels can be coated with a polymer compound. This type is considered the most modern, while it has the highest technical characteristics. Three-layer sandwich panels have a low weight, do not require additional strengthening of the supporting structure, their installation is quick and simple enough. They have a huge color assortment and a wide choice of facings. 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 is durable, fireproof, with excellent heat and sound insulation properties. The lifetime of such material is almost unlimited, it is estimated in decades. Installation is carried out by a certain technology, which allows you to lay the sheets overlap. This method prevents plate deformation in summer. The cost of sandwich panels for roofing ranges from 900 to 1900 rubles, mainly due to the difference in thickness of the material.

Specifications

Sandwich panels, like other building materials, have certain technical characteristics:

• Options. The thickness affects the strength and thermal conductivity. The length and width can be different, the main thing is that these indicators correspond to each other. For example, sheets of 1500 x 1000 mm are used for internal partitions. Standard dimensions of sandwich panels: 3000 x 1100 x 30 mm, 3000 x 1100 x 25 mm, 3000 x 1100 x 15 mm.
• The weight. This indicator is mainly influenced by the thickness of the plate and the type of material used for insulation. The easiest is styrofoam. There is a certain table of the ratio of weight and thickness of the panels, which are usually considered as 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 when building large enough buildings in order to correctly calculate the possible squeezing and bending of slabs when constructing the structure.
• Coefficient of thermal expansion. When building such structures as wholesale warehouses, shopping centers, it is necessary to take into account the parameters of this parameter.

Advantages and distinctive features

The use of modern technologies has made it possible to create sandwich panels whose types have undeniable advantages over other building materials. The main ones are:

1. The erection of the building in a short time.
2. Simplicity of transportation, it is possible to do without the services of firms engaged in cargo transportation.
3. Construction is possible at any time of the year.
4. When installing a sandwich panel (types may differ in thickness of the slab), there is no need for additional reinforcement of the structure.
5. High sound and heat insulation performance.
6. The material is environmentally friendly for humans.
7. It can not be deformed, decayed, damaged by bacterial fungi; It is waterproof, well tolerates high temperatures, fireproof.
8. The cost of the material is quite low, if compared with a tree or a brick.

The basic subtleties of mounting sandwich panels

The installation process is carried out using a special technology, taking into account certain features of fastening the sandwich panel. The types of these assembly jobs are quite affordable for a small number of workers. Regardless of the size of the building, construction can be done in a short time. For a perfect final 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 outer one remains until the end of the entire construction. Thanks to this, you will be able to protect the material from dirt, dust and possible damage.

Fastening of wall panels

If there is a need to adjust the panel to certain dimensions during the installation, a saw with a fine-toothed blade can be used. However, in order for the cutting process to be carried out fairly neatly, it will be necessary to place something soft underneath the plate, such as felt or styrofoam.

Types of mounting wall panels can be changed at the discretion of a specialist. However, it is possible to single out the main principle, which consists in the following: the panel is pressed tightly to the structure, and for fastening use connectors, the so-called nodes of sandwich panels. The installation itself can be both vertical and horizontal, it depends on the nature of the structure and the method of installation.

Roofing from sandwich panels

This type of work is carried out only after the completion of the construction of walls. If you have certain skills, then the installation of the roof will not take much time. The installation itself takes place directly on the runs using special screws. Fixing sandwich panels is overlapped. Each plate has a lock connection, thanks to which the joint is dense and reliable, completely does not pass moisture. The overall roofing fabric is 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. This is the undisputed leader among similar building materials. Such a high rating they deserved due to their distinctive properties and speed of installation, which allows to significantly save on the construction of the building.