Grease duct joints are held jointly through shaped V clamps and sealed with 3M Fire Barrier 2000+. It is possible to avoid fire spread from one particular fire compartment to a different, together stairways, rooms and general obtain corridors, only if all setting up resources and structural elements share a https://fire-resisting-ductwork-i24566.bleepblogs.com/37255189/fire-resisting-ductwork-insulation-things-to-know-before-you-buy