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 Applications.
BS 5588 Part 9 suggests three methods to maintaining fire
compartmentation where ductwork passes through compartment walls or floors.
Method 1 Protection using fire dampers
Method 2 Protection using fire resisting enclosures
Method 3 Protection using fire resisting ductwork
Good practice dictates that fire dampers should not be installed in
certain circumstances and therefore fire resisting ductwork is used.
Smoke extraction systems
Dual ventilation/smoke extraction systems
Pressurisation systems
Car park extraction systems
Kitchen extraction systems
Fire resisting ductwork may prove to be a cost effective alternative
to fire dampers in general ductwork systems (particularly over the
lifetime of a building).
No capital/installation cost of fire/smoke dampers and associated
access doors.
No reliance on mechanical fire dampers which may fail in time.
No regular testing regime.
No electrical wiring and control system associated with smoke dampers.
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