1. Firemac FM Fire Ducts have been shown by extensive testing to provide up to 4 hours fire resistance.
2. The manufacture of the product is supported by third party certification and regular training and inspection
by Firemac Gulf.
3. Insulated Firemac FM Fire Ducts will continue to provide fire resistance, even when the rock mineral wool is
damaged.
4. Insulated ducts that are not fabricated and installed following the Firemac specification are not supported by
the Firemac training and inspection system.
5. Firemac are not aware of any supporting test evidence for black steel ducts, which will have much greater
thermal movement at wall and floor penetrations and which will apply much greater stresses on supports.