Sandwich panels are composite materials produced of two corrugated metal plates filled (with PIR, PUR, Rock wool) for thermal insulation.
Sandwich panels are used as lining material on roofs, walls, internal partitions and cold storage depots. These panels offer the advantage of fast mounting. Apart from providing a high level of insulation, these panels are easily transported and are in great demand thanks to their architectural features.
Ease of transportation depends on filling material density, panel thickness, metal surface shape and metal thickness. Metal and filling material thicknesses depend on the place where the panels will be used and on the weight that they are intended to bear. Local weather conditions are taken into account when determining the proper filling material thickness. Sandwich panels provide waterproofness and thermic insulation with no need of plaster or paint and give an aesthetic appearance to the outer shell of buildings. Aluminium and prepainted galvanized steel sheets are used in the metal layer of sandwich panels. Our customers have the opportunity to choose from the RAL catalog the colors they want for their panels.
SANDWICH PANELS’ SUPERIOR QUALITIES
The aluminium or prepainted galvanized steel surfaces of our roof and wall panels are lined with 5-7 micron epoxy and covered by a polyester-coated 23-25 micron coil coating system. The A-3005 aluminium alloy used shows resistance to salt water and various weather conditions and does not break even if bent to 180 degrees. The galvanized steel used for coating contains 275 gr/m² of zinc and is extremely rust-resistant. Polyurethane’s density is 40 kg/m³ and has a non-combustibility rating of B2 (DIN 4102-B). Its coefficient of thermal conductivity is λ=0,022W/mK (DIN 4108- 4). The B2 category insulating tape located on the panel joints adheres to the panels as a result of a reaction with polyurethane preventing condensation in cold weather and air leaks.