The reason for use of cladding with cement bonded particleboards CETRIS® is the combination of excellent mechanical and fire-resistance parameters and favourable price. CETRIS® board is not only an external "envelope" of he frame structure and carrier of contact or ventilated heat insulated facade but also a reinforcing elements with wall level wind bracing function. Regarding the flame reaction class A2-s1,d0 and high flame resistance the cement bonded particleboards CETRIS® also favourably contributes to fire resistance of the whole wall structure.
The steel structure consists of zinc-coated steel profile, cold-rolled, allowing to build not only the support structure of steel hall jacketing but also mounted inner walls with very good sound insulation properties and, in particular, bearing perimeter walls and ceilings of buildings up to three-storey high. Light steel structures represent a modern building system with simple and fast mounting, versatility and variety of external look of buildings that is environmentally friendly. Cement bonded particleboards CETRIS® is used, for example, in the Amtech, Lindab, Tekta systems.