Месяц: Сентябрь 2022

Roofing sandwich panels are three–layer trapezoidal panels with polyurethane foam insulation (PUR). They are used as roofing for all types of buildings with a roof slope of more than 5-7°.

They have excellent thermal insulation characteristics and are resistant to corrosion.

Structure

Structurally, the roofing sandwich panel is a three-layer structure. The outer layers of the panel consist of a skin and a protective coating.

The covering of the roof panel is made of galvanized steel sheets 0.40-0.50 mm. As a protective coating, a polyethylene film with a thickness of 0.5 mm acts, which protects the roofing panels from mechanical damage. The inner layer is the space between the sheets, which is filled with polyurethane foam (PUR), which acts as a high-quality thermal insulation material.

Design of roofing sandwich panels

Basic parameters:

• Surface: on the one hand, the profile of the panel has stiffeners in the form of trapezoidal projections with a height of 40 mm, on the other hand, a micro profile with a depth of 1.5 mm.
• Filler: hard polyurethane foam (PUR, PIR) is used
• Width: 960 mm.
• Length: up to 8000 mm.
• Thickness: 75, 100 mm.

Roof sandwich panels are a universal material for the roof of buildings of various types and purposes, the main characteristics of which include excellent sound and thermal insulation properties, high resistance to adverse external influences, mechanical durability, reliability and long lasting features makes it unique.

Basalt fiber is made from silicate melts of rocks, scoria or their combinations. As a rule, panels with mineral wool are relevant for the construction of simple structures. Mineral wool is valuable because it does not support open combustion; it provides excellent indexes of heat and sound insulation, resistant to temperature fluctuations, and exposure to aggressive substances.

The following types of thin-steel layers and rolled products with a thickness from 0.40 to 0.50 mm are used as the outer lower and upper layers

The fastening of sandwich panels to the roof is carried out after the completion of the construction of wall structures. It is worth mentioning that the roof panels are a very secure junction to each other owing to profiled protrusions, which completely eliminates the possibility of water penetration, and thanks to the very strong and rigid junction of the layers, the risk of exfoliation and possibility of leaks in the future is completely eliminated.

In general, we can say that when the assembling process is finished, the roof structure becomes reliable, almost monolithic, which is provided by the technology of junction of the panels – the upper part is overlapping, and the lower part is using a «spike-groove» lock.

Styrofoam is a convenient, economical and non-toxic material with a porous structure, which has proven itself both as a building material and as an external insulation. Sandwich panels made of styrofoam have significantly less weight, which is a very important factor in the arrangement of the roof (reduction of the pressure of the entire structure of the roof) and greatly simplifies the installation process.

Sandwich panel for roofing is lightweight material, which is ideal for the construction of structures that require high moisture resistance and strength. Styrofoam sandwich-panels are easy to install.

Roofing sandwich panels from metal with styrofoam polystyrene insulation almost do not absorb moisture, are not subject to rotting, have good compressive strength, and are lightweight. That is why they are used in the construction of structures with high humidity levels (car washes, workshops for processing food, meat, fish, poultry, etc.), various trade facilities, temporary structures (construction headquarters, household towns, etc.)

Often, the installation process of panels does not involve the lifting mechanisms, or use counterbalance lifting equipment with a minimum load capacity. Metal roofing sandwich panels made of styrofoam polystyrene are also a durable roofing material with the lowest thermal conductivity.

Wall sandwich-panels — are light three-layer panels, consisting of two outer layers which are galvanized and coloured lists (covered with protective film) and the layer of the insulation of firm polyurethane (PUR).

Wall sandwich panels are used as enclosing structures for the construction of buildings for various purposes, for the installation of refrigeration chambers and freezing industrial warehouses, and can also be used as partitions and ceiling panels.

Structure:

Strict quality control and compliance of wall panels with fire, sanitary-epidemiological and hygienic requirements ensures leadership positions. The wall panel is a three-layer structure. The outer layers of the panel include a skin and a protective coating.

A galvanized steel sheet 0.40 mm thick with a polymer coating or without coating is used as a panel covering. The protective coating is a special film with a thickness of 50 microns, which protects the surface of the sandwich panel from damage during transportation and installation, and is freely removed after installation.

The inner layer is the space between the sheets, which is filled with high—quality thermal insulation material — polyurethane foam (PUR)

Design of wall sandwich panels

• Basic parameters:
• The surface is smooth or profiled
• Filler – polyurethane foam
• Width – 960mm and 1160 mm
• Length — up to 6 000 mm.
• Thickness — 50mm 75mm 80mm 100mm 120mm 150mm 200mm

The main advantage of sandwich panels with basalt fiber (mineral wool) is their high stability in high temperature. This is a unique material in its category that has a certificate of the NF (non-flammability) category (combustibility).

Panels with mineral wool are demanded for the construction of prefabricated buildings for various purposes. The light weight of the structures greatly facilitates their installation, transportation and storage.

Advantages of the panels with mineral wool

It is easy to process mineral-wool: its light and comfortable in cutting and in the process of installation is convenient. This material allows the implementation of non-standard solutions due to its lightness.

The use of the basalt fiber provides opportunities to seize the opportunity of its advantages

• non-combustibility. Mineral wool is fireproof and does not support combustion processes;
• low thermal conductivity. Because of this its easier to sustain a comfortable microclimate in any season.
• mechanical durability. The vertical order of the fibers characterized by the high-rigidity, and the material is resistant to deformation;
• vapor tightness. Sandwich panels with basalt insulation are designed in such a way as to prevent the penetration of moisture into the room and pass excess steam in the opposite direction;
• good noise insulation. The structure of the material is porous, which ensures the absorption of street noise;
• resistance to high temperatures. Basalt fibers do not deform even at 10,000C, provided that it causes no mechanical loads. The material does not melt and does not emit toxins.

One of the most heat-insulating materials is the sandwich-panels made from polystyrene foam. They are used for the installation of enclosing wall and roof structures of buildings of various purposes.

Sandwich-panels made from polystyrene foam is the usual practice in modern construction. The tech-centers and hangars, warehouses and trade and entertainment centers, shopping malls and pavilions are constructed by utilization of expanded polystyrene foam.

Sandwich-panels made from polystyrene foam are light, as the 98% of its total mass consists of the air. Convenience of installation of polystyrene foam sandwich panel is connected with its lightweight, simplicity of processing and resistance to damage.

PFS sandwich-panels are utilized as well as for heat-insulation, and noise-insulation material. From such panels not only the warm constructions and buildings are made but they are used as a soundproof fence.

Apart from the mentioned advantages, the affordable cost is the main privilege of the polystyrene foam.