Abstract: A film (1) for construction with at least one functional layer (2) and optionally at least one other layer, especially a carrier layer and/or reinforcing layer (3), the functional layer (2) having a water vapor diffusion resistance (sd value) that is dependent on the ambient humidity. The functional layer (2) has at least one material (4) that can be obtained from a renewable raw material, especially at least one polymer based on a renewable raw 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.

Abstract: A process for producing porous films (2), with the film (2) having a polymer matrix (M) and discrete domains (D) being provided in the matrix (M). According to the invention, it is proposed that the film (2) be subjected to a field for selective excitation of the domains (D), that the domains (D) be heated selectively relative to the remainer of the matrix by the excitation and that the pores (12) be produced in the domains (D) or in the region of the domains (D).

Abstract: A flat bonding structure (1), such as adhesive tape, adhesive film or adhesive edge, especially for use in construction, with at least one bonding region (2) which has at least one adhesive. In order to create a bonding structure (1) which has good temperature stability, good long-term adhesive power, and high initial adherence, the bonding region (2) has at least one first component region (4) with a first adhesive (5) and at least one second component region (6) with a second adhesive (7) and that the first adhesive (5) and the second adhesive (7) have different adhesive properties.

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: 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).