Schluter KERDI Waterproof Membrane, 3' 3" x 16' 5" is a sheet-applied polyethylene waterproofing membrane and vapor retarder designed specifically for use in tiled showers, bathtub surrounds, steam showers, and other wet areas. This flexible membrane effectively prevents water damage that can lead to mold and mildew, ensuring a durable and safe environment. It features a modified polyethylene core with non-woven polypropylene on both sides, allowing it to anchor easily in thin-set mortar. With an 8-mil thickness, the membrane provides uniform coverage that creates a reliable waterproof barrier i for tiled surfaces on both walls and floors. Its design facilitates quick installation while minimizing seams for efficient and comprehensive waterproofing. Model Number: 200/5M