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Waterproofing Membrane

Waterproofing Solutions for Wet Areas

A waterproofing membrane creates a continuous barrier that protects substrates from moisture intrusion in wet areas such as showers, tub surrounds, and floors. Shower waterproofing membranes and tile waterproofing membranes are designed to manage water exposure, prevent migration into framing or subfloors, and support long-term tile performance. This collection includes liquid and sheet waterproofing membrane options used as part of complete tile installation systems in residential and commercial environments.

USG Durock Liquid Waterproofing & Crack Isolation Membrane

USG
Original price $44.90 - Original price $116.00
Original price
$44.90 - $116.00
$44.90 - $116.00
Current price $44.90

USG™ Durock® Liquid Waterproofing & Crack Isolation Membrane is a liquid-applied, acrylic polymer–based waterproofing membrane designed for til...

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Original price $44.90 - Original price $116.00
Original price
$44.90 - $116.00
$44.90 - $116.00
Current price $44.90

GURU Water-Stop Waterproofing Membrane

GURU USA
Original price $0.00 - Original price $0.00
Original price $0.00
$102.61 - $536.87
$102.61 - $536.87
Current price $102.61

GURU® WATER-STOP Waterproofing Membrane is a bonded sheet waterproofing membrane designed for shower waterproofing, tile waterproofing, and crack i...

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Original price $0.00 - Original price $0.00
Original price $0.00
$102.61 - $536.87
$102.61 - $536.87
Current price $102.61

Dallas Specialty 40mil PVC Shower Pan Liner

Dallas Specialty & MFG. Co.
Original price $23.84 - Original price $101.99
Original price
$23.84 - $101.99
$23.84 - $101.99
Current price $23.84

Dallas Specialty 40mil PVC Shower Pan Liner is a flexible 40mil PVC pan liner designed to serve as a primary waterproofing membrane beneath tile sh...

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Original price $23.84 - Original price $101.99
Original price
$23.84 - $101.99
$23.84 - $101.99
Current price $23.84

GoBoard Waterproofing Membrane

Johns Manville
Original price $124.10 - Original price $124.10
Original price
$124.10
$124.10 - $124.10
Current price $124.10

GoBoard® Waterproofing Membrane is a lightweight polyethylene tile waterproofing membrane and shower waterproofing membrane laminated with non-wove...

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Original price $124.10 - Original price $124.10
Original price
$124.10
$124.10 - $124.10
Current price $124.10

Wedi Subliner Dry Waterproofing Membrane

Wedi
Original price $0.00 - Original price $0.00
Original price $0.00
$107.20 - $573.32
$107.20 - $573.32
Current price $107.20

wedi® Subliner Dry is a sheet waterproofing membrane designed for sealing interior wall and floor assemblies beneath tile installations. This tile ...

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Original price $0.00 - Original price $0.00
Original price $0.00
$107.20 - $573.32
$107.20 - $573.32
Current price $107.20

GURU Precut Water-Stop Waterproofing Membrane

GURU USA
Original price $0.00 - Original price $0.00
Original price $0.00
$64.81 - $79.08
$64.81 - $79.08
Current price $64.81

GURU® Precut Water-Stop Waterproofing Membrane is a tile waterproofing membrane designed for tiled shower systems and other moisture-prone installa...

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Original price $0.00 - Original price $0.00
Original price $0.00
$64.81 - $79.08
$64.81 - $79.08
Current price $64.81

Wedi Underlayment Kit

Wedi
Original price $0.00 - Original price $0.00
Original price $0.00
$203.89
$203.89 - $203.89
Current price $203.89

The wedi® Underlayment Kit is a 40 sq ft waterproof flooring system designed for tile installations over interior floors. The kit provides a comple...

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Original price $0.00 - Original price $0.00
Original price $0.00
$203.89
$203.89 - $203.89
Current price $203.89
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About Waterproofing Membrane

A waterproofing membrane is applied beneath tile installations to create a continuous moisture barrier that protects substrates from water intrusion. Shower waterproofing membranes and tile waterproofing membranes are used in wet areas such as showers, tub surrounds, bathrooms, and floors where regular exposure to moisture occurs.

This collection includes liquid waterproofing membrane and sheet waterproofing membrane options designed to integrate into complete tile installation systems for residential and commercial applications.

Types of Waterproofing Membrane

  • Liquid Waterproofing Membrane: Applied by roller, brush, or trowel to form a seamless waterproof barrier.
  • Crack Isolation & Waterproofing Membrane: Products that combine moisture protection with movement accommodation.
  • Reinforcement Fabric: Used at corners, seams, and transitions to strengthen waterproofing assemblies.

How to Choose

  • Application Area: Confirm the membrane is rated for showers, floors, walls, or other wet areas.
  • Installation Method: Liquid-applied membranes provide seamless coverage.
  • Substrate Compatibility: Verify compatibility with cement board, drywall, concrete, or other substrates.
  • System Integration: Choose products that work with your thinset, tile, and drainage components.

Common Applications

Waterproofing membranes are used in showers, tub surrounds, steam rooms, bathroom floors, laundry rooms, and other moisture-prone areas where tile is installed. Shower waterproofing membranes and tile waterproofing membranes are commonly specified for residential and commercial wet-area installations.

Why Use Waterproofing Membrane

Using a waterproofing membrane helps prevent water migration into wall cavities and subfloors, reducing the risk of mold growth, structural damage, and installation failure. A waterproofing membrane supports long-term tile performance and helps extend the life of the installation.

Frequently Asked Questions

Where is a waterproofing membrane used?

A waterproofing membrane is commonly used in showers, tub surrounds, bathroom floors, and other wet areas beneath tile installations. Shower waterproofing membranes and tile waterproofing membranes are specifically intended for areas with regular water exposure.

What is a liquid waterproofing membrane?

A liquid waterproofing membrane is a brush-, roller-, or trowel-applied product that cures to form a seamless waterproof barrier.

Does a waterproofing membrane go under tile?

Yes. A waterproofing membrane is installed beneath tile as part of the tile assembly.

Is a waterproofing membrane required?

Building codes and manufacturer guidelines often require waterproofing in wet areas. Always follow local code and product instructions.