Kauwm Professional Waterproof Membrane for Shower 5in x 50ft | 21 Sq Ft

Kauwm Professional Waterproof Membrane for Shower, Kitchen, Sauna

Designed for busy wet spaces, this high density PE membrane delivers dependable moisture control where it matters most. Measuring 5 inches wide by 50 feet long, it covers about 21 square feet and features a durable 20 mil thickness. The result is a robust barrier that helps keep showers, bathrooms, saunas, and other damp areas dry and performing over time.

Key benefits at a glance

• High density polyethylene construction with 20 mil thickness for lasting protection.
• Flexible sizing: easily cut to fit corners and irregular layouts; fleece on both sides anchors with unmodified thin set mortar.
• Wide application range: suitable for shower walls and floors, bathroom walls and floors, kitchens, and sauna spaces; indoor and outdoor use.
• Moisture resistance and aging performance that helps preserve substrates and tile finishes.
• Customer-focused warranty and support, making installation confidenceable for both professionals and DIYers.

Real-life use cases

Imagine updating a shower enclosure with curved edges. The 5 inch width and clean cuts make it easier to seal seams and lay tile. The fleece-backed surface stays in place as you bed the membrane in thin set mortar, reducing slips and misalignment during setup.

In kitchens, this underlayment helps shield subfloors and wall substrates from water exposure, especially behind backsplashes and along sink lines. In saunas and spa spaces, its moisture control helps maintain the integrity of wooden benches and tiles, while remaining compatible with marble, cement, ceramic, and stone tiles. It is suitable for indoor and outdoor installations in both residential and commercial settings.

Durability and reliability

The polyethylene core and robust 20 mil layer deliver durability in high humidity zones. It is designed to resist aging and wear, offering long-term performance as part of a comprehensive waterproofing system.

Why choose Kauwm

Kauwm stands behind this membrane with a focus on quality and reliability, providing a practical option for professionals and DIY enthusiasts who want better moisture control in wet spaces.