Schluter KERDI-DS - Waterproofing Membrane 20 mil Thick 323 Sq Ft Roll (3' 3" x 98' 5")

Product Description:

Schluter Kerdi DS waterproof membrane roll is a premium sheet-applied polyethylene waterproofing and vapor-retardant membrane designed for superior protection in wet and high-humidity environments. With a 20-mil thickness and a water vapor permeance of 0.18 perms, tested according to ASTM E96, Procedure E, at 90% relative humidity, Kerdi DS is the ideal choice for continuous-use steam rooms, residential steam showers, tub surrounds, and areas surrounding interior swimming pools. This waterproofing underlayment provides enhanced vapor control, making it suitable for commercial applications, including food processing facilities, breweries, dairies, and industrial kitchens, where moisture resistance and hygiene are critical. 

Kerdi DS is designed to safeguard floors, shower walls, and wet room substrates by preventing water infiltration and protecting against mold, mildew, and structural damage. It is compatible with various shower wall types, including cement backer board, gypsum board, drywall, Kerdi-Board, and other approved waterproofing substrates. The anchoring fleece on both sides of the membrane enhances adhesion when embedded in thin-set mortar, ensuring a strong bond with tile installations. This premium waterproofing system is ideal for bathroom floor tile, kitchen tile, steam room walls, and other high-moisture areas, ensuring reliable performance over time. Kerdi DS provides outstanding protection for ceramic tile, porcelain tile, granite tile, marble tile, cement tile, glass tile, mosaic tile, travertine tile, slate tile, limestone tile, sandstone tile, onyx tile, and quartzite tile, as well as natural stone tiles, offering a secure and stable foundation for waterproof flooring projects.

The flexible and durable membrane is easy to install, making it suitable for professional contractors and DIY home improvement projects. Whether used as a waterproofing layer beneath tiled surfaces or as an underlayment for tile waterproofing applications, it ensures long-lasting performance, preventing tile cracking and delamination due to moisture-related substrate movement. This versatile product is compatible with Schluter's complete shower waterproofing system, including Kerdi-Band, Kerdi-Seal pipe seals, Kerdi-Drain, Kerdi-Shower Trays, Kerdi-Curb, and Kerdi niche installations, providing a fully integrated waterproofing solution. 

Kerdi DS is designed to simplify installation while offering superior crack-isolation properties, making it perfect for use in kitchen decor, bathroom decor, home decor, and flooring renovation projects. This sheet-applied waterproof membrane is 3 ft 3 in wide and provides seamless, continuous waterproofing for steam rooms, shower enclosures, commercial kitchens, and tiled wet areas. It is engineered to be used with Schluter Set, Schluter All-Set, or Schluter Fast-Set thin-set mortars to ensure optimal bonding and long-term durability in wet and high-vapor environments. Whether applied to new construction projects or during remodeling, Schluter Kerdi DS waterproofing membrane delivers reliable, high-performance moisture control for tile installations, making it the preferred choice for residential and commercial waterproofing applications.