ATLAS ROKER G system consists in application of mineral wool insulation boards upon surfaces of walls or ceilings indoors, followed by application of finishing coats according to one of three material/ technological options. In type I, base coat with fiberglass mesh is installed manually upon mineral wool boards and the resulting surface is coated with façade paint. In type II, base coat with fiberglass mesh is applied manually upon mineral wool boards and the resulting surface is coated with thin - coat render (with optional further painting). In type III, finishing coat made of of thin-coat render is spray - applied upon mineral wool boards (one-side impregnated). Option III allows to reduce cost of both material and labor, shorten the time of system installation with keeping full system technical and operational functionality.