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non-combustibility and fire-resistance

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By application

Smoke removal

The smoke and heat exhaust system provides the removal of combustion and smoke combustion products in the initial phase of the fire and then removes the heat released. This improves the evacuation of people and the intervention of fire brigades, reduces the thermal stress of the building structure, and ultimately reduces subsequent damage to the equipment or building caused by hot gases and smoke.


Both natural and forced smoke and heat exhausts heat hot gases outside the building either through roof flaps, ventilators or piping systems. These piping systems are distinguished in standards as smoke and heat pipes from one or more sections of fire, or smoke and heat pipes from multiple fire departments with individual smoke sections.

Grena company designed and tested the smoke and heat pipes from Grenamat AL boards

Grena company designed and tested the smoke and heat pipes from Grenamat AL boards

Grenamat AL boards are suitable for assemblies of these piping structures due to their strength, fire resistance, easy machinability and very good fire resistence.


The duct is certified to be used in buildings with more fire zones or with one fire zone to which the duct is taken through other fire zones.
The duct may be installed in horizontal or vertical positions with the possible branches, fans or grids integrated into the duct.


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