Skip to main content

DuoDuct External DuctSlab

ROCKWOOL® DuoDuct is a non-combustible stone wool slab that provides thermal insulation to external ducts carrying warm air, chilled air, or dual-purpose duct systems.

  • HVAC
  • Ventilation Ducts

DuoDuct is a non-combustible, dual-density stone wool slab with an aluminium foil facing bonded to the outer surface.

The product is recommended for ductwork with service temperatures up to 230°C. It can also be used in plant rooms, low-level plant work applications, and areas with an increased risk of impact damage.

  • Euroclass A1 in accordance with BS EN 13501-1 Reaction to Fire rating
  • CE marked in accordance with EN 14303:2009+A1:2013