Schlüter‑KERDI is a bonded waterproofing membrane for use beneath tile and natural stone finishes on walls and floors, where the substrate is flat, even and suitable for tiling. Manufactured from polyethylene with fleece laminated on both sides, the membrane ensures strong adhesion within the tile adhesive layer, creating a reliable, watertight assembly.

Available in 2 m‑wide rolls, Schlüter‑KERDI enables faster installation by reducing the number of seams that require sealing, helping to minimise risk on site. Tiles can be installed directly over the membrane, keeping system build‑up low and making it suitable for both new‑build and refurbishment projects.

As part of a complete waterproofing system, KERDI is supported by compatible sealing bands, prefabricated corner pieces, pipe seals and installation adhesives, ensuring secure detailing at joints, transitions and penetrations for long‑term performance in wet areas.