Kerdi-Band 5 in. X 33Ft. Underlayment Waterproofing Strip

Kerdi-Band is a waterproofing strip for sealing butt joints and floor/wall connections with Kerdi and Ditra membranes. It is installed with unmodified thinset to ensure a fully water-tight seal to prevent leaks. The 4 mil thickness of the Kerdi-Band helps prevent build up under the tile. Material: Polyethylene.