Roof sandwich panels are based on expanded polystyrene - modern, popular building material that combines two important functions: protection from rain and adverse weather conditions, as well as the effective thermal insulation of buildings and structures of various types.
Roof sandwich panels re used for roofing of any type, including complex decision roofs. The panels consist of a substrate and the outer layer that is mostly metal-coated, plastic and other materials, and the internal filler that is made of polystyrene (styrofoam).
At present, styrofoam is considered one of the the best and most effective heaters that together with high moisture resistance makes it ideal for roof insulation. Taking into account sturdy outer cover, modular dimensions and easy installation, roofing sandwich panels have a unique versatility that allows them to use immediately in two versions: for waterproofing roofs and complete devices, and effective insulation of roofing space. And due to these important characteristics of a single material, using a roof sandwich panels the final price will be significantly lower compared to the embodiment of the application of any other material.
Consumers will be offered endless variety of options and styles of roof sandwich panels based on expanded polystyrene. The panels are available in a large color palette, as well as different patterns of the outer layer, which allow them to be used not only as fencing, but also as a ready alternative exterior of the roof.
The main advantages of roof sandwich panels:
Panels significantly superior to traditional building materials for its thermal insulation and energy-efficient performance. Panels can be used for the construction of facilities in all climatic regions.
High thermal insulation properties make possible to reduce the thickness of walls and partitions in the building, thus increasing usable area of the building.
The technology allows the installation of sandwich panels to build in minimal period of time.
The relatively light weight of panels allows to reduce costs through the use of a lightweight foundation and their simple installation that does not require the use of special lifting equipment and instruments.
There is also possibility of dismantling and re-assembly of multiple buildings.
Due to aesthetic properties of the material, i.e. variety of colors, there is no need for additional external finish and the ability to use both vertical and horizontal installation that provides endless architectural possibilities.
The "dry" technology allows to organize the installation works in any wethar condition.
Due to tight docking of panels the possibility of "cold bridges" and the penetration of moisture is reduced.
Durability of objects, constructed from panels (not exposed to degradation and decay, aggressive industrial environment), high resistance to their current atmospheric conditions (not destroyed under the influence of seasonal fluctuations in temperature, solar radiation, rain, snow, wind). As a result - the building will be still for more than 50 years and will not require renovation.
Sandwich panels have hygienic surface which is extremely important for the food industry, etc.
Constructive features of sandwich panels
Sandwich panel is a three-layer construction material.
The middle layer of the sandwich panel, that is responsible for thermal and acoustic insulation is made of mineral wool.
For wall and roof sandwich panels production structural mineral wool is used with a variety of physical and mechanical characteristics. Roof sandwich panels are made of mineral wool with high resistance properties.
For cladding galvanized painted steel sheet is used. Polymeric coating of sandwich panels provides protection of sheet steel from harmful external influences and has a high resistance to abrasion, resistant to acidic environments as well as ultraviolet radiation.
The color scheme covering of sandwich panels corresponds to RAL color card. Customer can also choose any other desired color. Color solution surface of sandwich panels can be chosen from original catalogs of RAL colors. When selecting the color scheme you should know the current dependence of the coefficient of absorption and reflection of light from the surface of panels' coating color. Darker color of the surface causes a large quantity of heat absorption, which leads to the so-called thermal nonlinearity of the panel and as a result, it can be deformed. Therefore, the darker the surface of the panel, the higher the temperature of its heating, the greater the deformation of the surface. It is not recommended to use darker colors.
Requirements for the production of works with panels
Fastening of sandwich panels to the supporting structures, sealing of joints and junctions must be performed in accordance with the project. When installing the wall panels (till the installation of roof panels) panels should be covered with waterproofing material.
Panel overloading must be mechanized. It is not permitted to unload and move panels manually.
Shots on panels during installation, the installation of fasteners, sealing of joints and junctions are not allowed.
It is not allowed to walk on roofing panels. They are suitable for temporal walking on specially laid wooden ladders. Ladders must be laid at right angles to the structural spans of sandwich panels. It is recommended to post information on all exit points of the roof that will notify the staff about the rules. The panels can not be used as a working platform.
Various equipment, such as refrigeration, air ducts etc., should not be attached to the panels, and suspension constructions. Personnel should not assemble in groups of more than two people on one panel, especially near doorways.
Drilling holes in the panels for inserting fasteners should be done with the help of power tools.
Panel mount ladders, industrial partitions, equipment and fixtures are unacceptable.
The surface of the panels should be cleaned out of dirt and dust using compressed air or cleaning agents that do not cause damage to the protective coating of metal. The usage of sand, alkalis, acids - is unacceptable.
Installation of roof panels
First, the panel can be locked with a single connector to the ridge purlin and then to other purlins (except roof ridge runs). Outer panels are fastened to structures (run) with three self-drilling connectors at the top of trapezoidal panels. Central panels are attached to the structure (run) with two connectors. To ensure the tightness of the joint panel, it is preferable to use an additional connector. To install the connector it is recommended to use a universal screwdriver. Due to the different loads in these areas and outer corners the final amount of connectors is determined directly by the engineer of the project.
After the installation of roof panels it is time to install inner ridge bar, fill the space between the panels with polyurethane foam, cut leaks and install the ridge profile polyurethane gasket on both sides of the panel.
Bearing capacity of the roof panels
When calculating the bearing capacity of roof sandwich panels it is taken into account that core that is tightly adhered to the outer metal profiles promote to distribution of perceived stress. The external metal layers perceive stress tension and compression, and insulation - the shear force, which ensures high load-bearing capacity of sandwich panels.
Static analysis of sandwich panels is made in compliance with the terms of the limit states of bearing capacity and stability of panels' forms. For roofing panels limit state of bearing capacity is calculated, depending on the distance between the supports. The adopted scheme of loading: statically defined single-beam and statically undefined double-span beam. When multisupporting mount considered the combined effect loads.
Our company offers you roof sandwich panels of any desired type, and in any quantity. Our experts will consult you on all issues and help you choose the best type of product perfectectly suitable for particular construction. Thanks to modern production, adjusted partner relationships with major suppliers of components and materials, the cost of roofing sandwich panels in our company is one of the lowest in the local market.