Dynamic development of hard-to-reach areas of Russia, especially the Far North, requires a material that is easily transportable to construction sites and makes construction of facilities as quick as possible.
Economic efficiency, light weight, and high heat saving indices are among the advantages of sandwich panels. The word “sandwich” emphasizes the multilayer structure consisting of metal, fiber building board, insulant, and metal again. The core of the panel is environmentally sound insulating material (mineral wool or foam polystyrene). Galvanized sheet steel with protective decorative coating forms the panel casing.
Metallon, a production and construction company, uses sandwich panels for rapidly-constructed and mobile houses, and since 2003 has produced them with a bench assembly technique. This method produces panels with three or more layers, up to 7.2 m long, with increased rigidity and hidden wiring embedded.
In terms of heat conductivity and efficiency, the multi-layer self-supporting frameless structure of sandwich panels compares favorably with any conventional structure.
Due to their versatility, sandwich panels are widely used in construction. Facilities built with sandwich panels include commercial and industrial complexes, sports facilities, food industry facilities, filling stations, freight handling and port terminals, warehouse facilities, heated modules and sections in production premises, modular and demountable buildings and structures, drying chambers, as well as special construction at metallurgical factories.
The panels significantly improved the quality of the company’s house trailers and vans.
Metallon’s specialists proposed varying the casing of panels, for instance manufacturing panels with plastic and laminboard casing or casing that imitates decorative plasterwork, thus eliminating the need for interior finish work in mobile and rapidly-constructed buildings.
Specifications
Three-layer frameless metal sandwich panels with insulating cores are designed for walls and roofs of civil housing and industrial construction buildings in areas I-IV classified by wind pressure (up to 48 kgf/sq. m) in accordance with Building Code SNiP 2.01.07-85* at temperatures between –65 С and +75 С. They will be manufactured in accordance with Specification TU 5284-122-39124899-2004.
Materials used in manufacturing of sandwich panels:
Coiled galvanized steel with coating of Class 1 according to GOST 14918-80, group PK (temper-rolled, for painting) for plates with polymeric coating.
Cold rolled and hot-dip galvanized steel with organic coating according to TU 14-1-47-92.
Imported coiled steel according to DIN standards, in compliance with requirements of GOST 14918-80.
Thickness of galvanized coating is 24-26 µm; class 1.
Zinc consumption is 275 g per sq. m. Front polymeric coating is at least 25 µm. Steel with coating (plastisol) 100 µm thick can also be used.
Heat insulation of mineral wool slabs based on synthetic binders NOBASIL (Certificate of Compliance No. ROSS SK СА81.Н00226) and LINEROCK (Certificate of Compliance No ROSS RU.СL49.Н00061) can be used as insulating materials.
