Roof protective mushroom GKNS 21 is used for lightning protection of multi-storey roofs of garages and walkways.
The mushroom is connected to the reinforcement in the concrete roof or passage. In the case of roofs where it is not possible to connect the reinforcement in concrete, the roof conductors can be laid in the pavement, and the mushrooms in the places of the network nodes.
It is composed of a mushroom, connecting screws and cross connectors. It is made according to regulations and standards.