Ventilation duct is a indispensable part of HVAC, ABM rock wool/fiber glass insulation material can provide thermal insulation, fireproof and non-combustion, sound absorption and noise reduction function.
Smoke and exhaust ducts often working on the very high temperature so demanded use non-combustible material as insulation material. Insulation must maintain their properties at high temperatures, provide time for trapped people to escape, the smoke and exhaust ducts covered with rock wool material have more advantages in the fire prevention, heat insulation, weight and cost.