Edge insulation strips thin-layer system NerthusFlow 20m²

The wall-side self-adhesive strip securely fastens to the wall. The floor area automatically lies flat due to its own weight and the screed applied later. For professional screed layers, this variant is often sufficient.

The variant with double self-adhesive backing (wall + floor) is slightly more expensive, but even easier to install – especially with raised floors or uneven surfaces where the strip might otherwise slip.

The strip is applied circumferentially to all walls, columns, and penetrations before the underfloor heating is laid. The self-adhesive surface is simply pressed against the wall, with the film flange initially protruding upwards. The strip can be cut to size with scissors or a utility knife – any excess is trimmed flush after the screed has been laid.

The foil flange prevents liquid or fine particles from penetrating the edge joint when the screed is laid, thus creating a sound bridge. It remains upright during screed installation and is only cut flush with the top edge of the screed after it has hardened and before the floor covering is laid.