A wrapped ductwork solution is made up of a steel sheet manufactured according to DW144 or SMACNA completely wrapped in the Promat®-WRAP solution to achieve the required fire rating.
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 inside the duct, fire on the outside of the duct).
All the duct systems are tested according to BS 476: Part 24: 1987.
See below tables for different configurations and performance.
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