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ventilation grille
the VENTILATION GRILLES “GB-GA SLIM” are reduced-thickness fire-rated grilles for the protection of air-exchange areas. They consist of perforated cement-matrix silicate boards screwed to a metal profile fitted with intumescent gaskets which, in the event of fire, completely close every through opening. Transfer grilles are installed when natural ventilation must be maintained between two compartments separated by a fire-resisting partition. The VENTILATION GRILLES “GB-GA SLIM” are housed inside a frame made of cement-matrix silicate boards and complete with a metal grille as an exclusive external finish.
ON WALLS
The contents of this page are summarised from the official technical data sheet PDF, which remains the reference document.