Fire Protection of Self-supporting Ducts

The relative complexity of any ductwork system passing through different fire compartments and the relevance of the system’s function in ambient as well as fire conditions can make the selection of a suitable ductwork system difficult.

Promat provides guidance on fire performance requirements and a wide range of solutions for protecting ductwork and other self supporting systems.

Further Information


  • Single board systems for up to FRL 120/120/120
  • Large Spans up to 3m
  • Up to 4hr integrity only ducts
  • 1, 2 & 3 sided applications
  • Internal or External Fire Protection
  • No sheet metal duct required


FRL 120/120/- FRL 120/120/120 FRL 240/240/- FRL 240/240/30 FRL 240/240/240
PROMATECT®-H Self-supporting Duct Systems X X
PROMATECT®-L500 Self-supporting Duct Systems X X
PROMATECT®-L Self-supporting Duct Systems X X
DURASTEEL® Self-supporting Duct Systems X

Note: FRL * /* /* (Fire Resistance Limit – *Structural Adequacy / *Integrity / *Insulation)

60 Years of Expertise
Tested & Certified Solutions
Global Service Network