Everbuild aquaseal wet room system kit everbuild aqwrskit the aquaseal wet room system gives you everything you need to waterproof both walls and floors prior to tiling showers wet rooms wet zones and other areas susceptible to water and excessive moisture ideal for use on plasterboard mdf plywood cementitious boards blockwork concrete and specialist wet room boards the aquaseal tanking kit is available in two sizes standard everything you need to waterproof 45m and large ever