Roof Extractors remove the heat from industries and allow fresh air movement inside the building. Roof extractors are ideal for ventilation of factories, workshops, warehouses, foundries and other buildings which require efficient ventilation for healthy working environment and good quality air. . Fan blades are made of alluminium alloy casting and Casings and Weather cowl are made of Mild steel, Galvanized steel or Stainless steel as per customer requirement. Range of product is 500 cmh to 50000 cmh.