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HYDRO-BLOK Uncoupling Membrane

For Tile Uncoupling, Crack Isolation & Waterproofing

Original price $0.00 - Original price $0.00
Original price $0.00
$475.00
$475.00 - $775.00
Current price $475.00
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Availability:
17 in stock!
Availability:
7 in stock!
Thickness: 1/8"
Size: 300 Sq Ft (36" x 100')

HYDRO-BLOKĀ® Uncoupling Membrane is a tile underlayment designed to separate tile from substrate movement while providing crack isolation and waterproofing protection. Installed beneath tile, it helps manage stress, reduce cracking, and support long-term performance across a range of subfloor types.

Key Features
  • Uncoupling layer reduces stress transfer from substrate movement
  • Crack isolation helps prevent tile and grout cracking over time
  • Waterproof barrier protects against moisture in wet areas
  • Compatible with concrete, wood subfloors, and existing tile
  • High-density polyethylene construction resists moisture and degradation
  • Eliminates need for additional reinforcing mats or screed layers
Best For
  • Tile installations over movement-prone subfloors
  • Crack isolation beneath ceramic, porcelain, and stone tile
  • Waterproofing under tile in wet-area flooring applications
  • Residential and commercial tile flooring systems

Why Professionals Choose Tile This

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  • Same-day shipping before 2 PM CST (Mon–Sat) for in-stock items
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HYDRO-BLOK Uncoupling Membrane 1/8" / 300 Sq Ft (36" x 100') $475.00

Description

HYDRO-BLOKĀ® Uncoupling Membrane is a tile underlayment engineered for uncoupling and decoupling tile assemblies from substrate movement. It functions as a crack isolation and waterproofing layer to help manage movement and protect tile and grout over time.

Manufactured from high-density polyethylene, the membrane integrates beneath tile surfaces to support moisture resistance and compatibility across a range of common subfloor types.

Key Features

  • Uncoupling & Decoupling Performance: Helps separate tile from substrate movement to reduce stress transfer and cracking.
  • Waterproof Barrier: Provides a moisture-resistant layer suitable for wet-area flooring applications.
  • Antifungal Properties: Helps resist mold and mildew beneath the tile surface.
  • Subfloor Compatibility: Suitable for installation over concrete, wood subfloors, and existing tile.
  • Installation Efficiency: Eliminates the need for reinforcing mats or traditional screeds.

Specifications

Specification Details
Material High-density polyethylene (HDPE)
Thickness 1/8" or 1/4"
Roll Size 6" x 100'
Coverage 300 sq ft

HYDRO-BLOKĀ® Uncoupling Membrane provides a stable tile underlayment that supports uncoupling, moisture management, and substrate movement control in residential and commercial flooring systems.

Hydro Blok

Frequently Asked Questions

Does this membrane help prevent tile and grout cracking?
Yes. HYDRO-BLOK Uncoupling Membrane is designed to absorb substrate movement, helping reduce the likelihood of tile and grout cracking over time.
Is this membrane suitable for wet-area flooring?
Yes. HYDRO-BLOK Uncoupling Membrane provides a waterproof layer that supports tile installations in wet or moisture-prone environments.
Which substrates can this membrane be installed over?
HYDRO-BLOK Uncoupling Membrane is compatible with concrete, wood subfloors, and existing tile, making it suitable for a range of installation conditions.
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