Sealing with wedi Subliner Dry The wedi Subliner Dry System includes Subliner Dry Sheet Membrane, Sealing Tape, Prefabricated Outside and Inside Corner Tapes as well as various Sealing Collars to waterproof entire structures in especially shower and steam room construction. wedi Subliner Dry is well suited for sealing measures over preexisting wall or floor underlayment including drywall. Use Subliner Dry in combination with ceramic tiles, slabs, and natural cast tiles for indoor wall and floor areas. Especially strong performance in steam showers / rooms due to its unique Vapor Resistance rating of 0.09 WVTR/Perms as tested using ASTM E96, method E. The Subliner Dry is a strong membrane yet very pliable. Installation steps and measuring and cutting gridlines are printed on its surface for fast working.