CLADDED DUCTS - Fire Rated Ductwork

ADVANTAGES

  • Fire rated ducts will guarantee the fire compartmentation
  • Promat fire rated ducts tested according to fully-developed ISO-curve
  • Promat can offer a full range of fire ducts: self-supporting, cladded and wrapped
  • Promat systems can be used as ventilation, pressurisation, smoke extract, kitchen extract, cable, basement and enclosed car park ductwork

The basis of cladded ductwork is a steel sheet duct manufactured according the DW144 or SMACNA. The Promat system provided the fire rated by cladding the steel sheet duct with PROMATECT®-H.

Based on the different configuration the systems can be used as ventilation, pressurisation, smoke extract, kitchen extract, basement and enclosed car park ductwork.

Promat offers the solution for a Type A (duct that prevent of fire getting inside the duct, fire on the outside of the duct) and Type B (duct that prevent of fire getting outside the duct, fire on inside the duct) ductwork.

All these ductsystems are tested according the BS 476: Part 24: 1987 and are Certified by Exova (Certifire).

See below tables for different configurations and performance.

RELATED PRODUCTS - FIRE RESISTANT BOARDS

calcium silicate fireproof board PROMATECT®-H  composite board manufactures with a fibre cement core DURASTEEL®

RELATED FIRE PROTECTION APPLICATIONS

self supporting duct fire protection Self-supporting ducts wrapped duct promat Wrapped ducts fire rated ducts cable enclosure promat Cable enclosure

PROMATECT®-H

PROMATECT®-H | Cladding of existing steel ducts | Duct Type B
Stability
[mins] 
 Integrity
[mins]
Insulation
[mins] 
PROMATECT®-H
thickness [mm] 
 Rockwool
Max dimensions
[mm]
Certifire  Standard
 120 120  - 9 - 600 mm x 2500 mm  CF 474  BS 476: Part 24: 1987
 120 120  30 20 - 600 mm x 2500 mm
 120 120  60 12 50 mm x 60 kg/m³ 600 mm x 2500 mm 
 120 120  120 15 50 mm x 100 kg/m³  600 mm x 2500 mm 
 240 240 12 600 mm x 2500 mm 
 240 240 30 20 600 mm x 2500 mm 
 240 240 240 25 100 mm x 100 kg/m³ 600 mm x 2500 mm 


 PROMATECT®-H | Cladding of existing steel ducts |Duct type A and kitchen extract ducts
 Stability
[mins]
 Integrity
[mins]
 Insulation
[mins]
 PROMATECT®-H
thickness [mm]
 Rockwool
 Max dimensions
[mm]
 Certifire  Standard
 120  120  30  15  50 mm x 100 kg/m³  6000 mm x 2500 mm  CF 474  BS 476: Part 24: 1987
 120  120  60  15  100 mm x 100 kg/m³  6000 mm x 2500 mm
 120  120  120  15  50 mm x 100 kg/m³  6000 mm x 2500 mm