Complex fireproof system is used for isolation of air lines, ventilating systems and thin-walled metal designs, for prolongation of fire resistance at influence of open fire and heats. System consists of a basalt fibre (basalt rolled covered 20m X 1,25m X 7-10 mm on the one side a aluminum foil) and a ready-to-use heat-resistant -fireproof gluey mass in 25 kg plastic buckets. The materials are ecologically pure and do not contain toxic substances. Time of fire protection is 30 and 90 min.