They may be mostly Utilized in big compartments, auto parks, substantial-increase structures and atriums in business, Place of work and household buildings. Automobile parks with very low ceilings present harmful zones since the smoke layer can fill the Place in a short time and helps prevent evacuation.
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For that reason, the minimum fire resistance Restrict of ducts in all circumstances need to be EI 30 or increased, increasing As outlined by particular positions.
Insulation: The time all through which the duct is subjected to fire right up until a loss of fabric insulation security occurs.
Promat has developed self-supporting units and not using a steel liner, such as PROMATECT®-Advertisement, PROMATECT®-L500 and MASTERBOARD®, which can match the leakage and air stream efficiency of metal ducts equally for air ducts and smoke extraction ducts.
A flexible wrap developed for cutting down the unfold of flame and smoke emission in a fire of plastic pipes or any framework carrying plastic coated cables.
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Vertical ducts inside the fire compartment that serve the goal of smoke extraction in that location will have to satisfy the EI forty five-minute common.
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Properly safe insulation – use efficient aluminium tape to seal any gaps and protected insulation round the complete ductwork.
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