Fire Dampers

BOSS Intumescent Fire Dampers allow the bi-directional movement of air through fire rated walls and floors. In a fire situation the slats in the damper intumesces and swells to many times the original size, closing the damper and forming a solid fire barrier. They are simple to install, easy to identify, and economical to maintain. The BOSS Damper has slats of foil-covered intumescent material with a rigid steel frame.

Key benefits

  • 2 hours fire rating
  • Rigid zinc-coated rigid steel frame
  • Allows high volume air flow
  • Suited to steel ducts
  • No moving parts to maintain
  • Available in square and round shape
  • Large and custom sizes available


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