Shower 20 Mil Shower Waterproofing Membrane 3.3 ft x 33 ft Roll (108 Sq.Ft) – PE Tile Underlayment with Vapor Barrier for Shower Walls, Bathroom Floors, Steam Rooms & Wet Areas — Open-Box, 8% Off

3-Layer PE Waterproof & Vapor Barrier : Constructed with a reinforced polyethylene core and dual non-woven fabric layers, this 20 mil membrane creates a reliable waterproof and vapor barrier under tile, helping prevent moisture intrusion and structural damage

Ideal for Showers & Bathroom Renovations : Perfect for shower walls, tub surrounds, bathroom floors, steam rooms, kitchens, and laundry areas. Designed to form a continuous waterproof layer beneath tile installations in wet environments

Flexible 20 Mil Thickness (0.5mm) : Balanced flexibility and durability make this membrane easy to cut, score, and fold around corners without cracking. Compatible with unmodified thin-set mortar for secure adhesion

108 Sq.Ft Coverage – Perfect for Small Projects : 3.3 ft x 33 ft roll provides 108 square feet of coverage, ideal for single shower builds, tub surrounds, or small bathroom remodels without excess material waste

Premium Tile Underlayment Protection : Fiber-reinforced structure enhances tear resistance and long-term stability beneath tile systems. Suitable for residential remodeling and professional installations

Reliable Waterproof Protection Under Tile This 20 mil PE waterproof membrane is designed to create a secure moisture barrier for tiled wet areas. The reinforced 3-layer construction blocks water and vapor from penetrating subfloors and wall assemblies,and long-term damage. With 108 square feet of coverage, it is ideal for shower installations, tub surrounds, and small bathroom renovation projects. The flexible yet durable material allows precise cutting and easy installation with thin-set mortar. A dependable waterproofing solution for both DIY homeowners and professional contractors.