AF COVER AIR are protection systems designed to grant EI 120 properties to ventilation and extraction points placed above false ceilings.
They consist of a mineral wool strip (10 mm thick) inserted between two layers of fiberglass and fixed through a collar containg intumescent material. The outer face of the layers is covered with an aluminum foil and the inner face contains an intumescent painting.
AF COVER AIR is a lightweight and flexible protection. Therefore, it is easy to install and does not overload the structure of the false ceiling.