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FIREPRO® Fire Duct Systems

Part of the Firepro® range of fire protection products. Fire duct systems provide fire protection, thermal and acoustic insulation for circular and rectangular ductwork. The simplicity and flexibility of fixing options ensure rapid and reliable installation to both vertical and horizontal duct systems.

All fire duct products are supplied faced on one side with reinforced aluminium foil.

Rockwool insulation products do not contain blowing agents with an ozone depletion potential (ODP) or global warming potential (GWP), are CFC-HCFC-HFC free and 97% recyclable. They will not react with metal components or cause loss of plasticiser from PVC cables and pipes.


  • Specified with confidence.
  • Quick and easy to install.
  • Fully certified to BS 476–24 (duct types A and B).
  • 30, 60, 90 and 120 minutes fire protection for stability.
  • Integrity and insulation.
  • Choice of fixing options.
  • Single layer, enabling verification of system installation.
  • Space efficient, non-brittle, strong and safe.
  • Multi-role insulation: fire protection, acoustic and thermal.
  • Can be installed on standard DW144/42 ductwork.

General information
Specification data - Mineral wool duct slab insulation
Product Reference

Fire Duct Slab

Fire Duct Section

Fire Duct PSM


Firepro glue

Pigtail screws

Welded steel pins

Standard product features

Fire Duct Slab:

For rectangular ducts.

  • Size: 1200 x 2000 mm.
  • Surface Spread of Flame: Class 1 to BS 476-7.
  • Non-combustible: BS EN 13501-1 Class A1.
  • Thermal Conductivity: 0.035 W/mK at 10°C.

Fire Duct Section:

For circular ducts between 17 mm and 610 mm diameter.

Fire Duct PSM:

Manufactured from Fire Duct Slab with factory-machined grooves to suit specific duct diameters. For circular ducts greater than 406mm diameter.

  • Material: Aluminium foil faced mineral wool.

Fire performance:

Certified to BS 476-24 Type ‘A’ and ‘B’: Up to 2 hour fire protection for stability, integrity and insulation.

Product Options

Fire Duct Slab:

  • Thickness: 40 mm / 90 mm.

Fire Duct Section:

  • Thickness: 40 mm / 90 mm.

Fire Duct PSM:

  • Thickness: 40 mm / 90 mm.


  • Welded Steel Pins
  • Firepro Glue
  • Pigtail Screws

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