Abstract: The invention relates to a system (1) for conducting lightning currents and/or fault currents away from a roof area (2) and/or façade area of a building (3) to the ground (4). According to the invention, the system is equipped with at least one strip (5), which is laid in the roof area (2) and/or façade area of the building (3) and at least one potential compensation system for the building (3). The strip (5) comprises at least one electrically conductive layer for shielding electromagnetic radiation and the strip (5) is connected to the potential compensation system in such a way that lightning currents and/or fault currents can be conducted away via the strip (5) and the building potential to the ground (4).

Abstract: The invention relates to a construction sector membrane (1) with at least one outer fibrous nonwoven web layer (2) constructed to produce a bond with an applied material such as mortar, concrete or an adhesive.

Abstract: Building material for use in the building industry. According to the invention, the building material comprises at least one thermochromic material which changes colour and/or transparency depending on a switching temperature, the colour and/or transparency changing occurring in the temperature range of the lower and/or upper processing temperature of the building material and/or the processing temperature of another building material to be processed with the claimed building material.

Abstract: A studded membrane is proposed for the protection of buildings with a drainage and slip surface formed on the reverse side thereof. This ensures that water is drained between the studded membrane and the exterior surface of the building, between the studded membrane and the seal, between the studded membrane and the insulation.