Skip to content
Contact Us Shipping & Returns Ordering Information Order Status About Us FAQ Contractor Program
HYDRO-BLOK Uncoupling Membrane Rolled Up
HYDRO-BLOK Uncoupling Membrane Unrolled
HYDRO-BLOK Uncoupling Membrane Standing Up
HYDRO-BLOK Uncoupling Membrane Rolled Up
HYDRO-BLOK Uncoupling Membrane Unrolled
HYDRO-BLOK Uncoupling Membrane Standing Up

HYDRO-BLOK Uncoupling Membrane

Tile Underlayment for Uncoupling, Crack Isolation & Waterproofing

$0.00 - $0.00
$0.00
$475.00
$475.00 - $775.00
$475.00
HYDRO-BLOK  |  MPN: HBUNCOUIP18
Free Shipping Eligible
Availability:
17 in stock!
Availability:
7 in stock!
Thickness: 1/8"
Size: 300 Sq Ft (36" x 100')

1/8" Uncoupling Membrane Specifications

  • Material: High-density polyethylene (HDPE)
  • Membrane Thickness: 1/8 in
  • Roll Dimensions: 36 in Ɨ 100 ft
  • Coverage Area: 300 sq ft
  • Application: Tile uncoupling, crack isolation, and waterproofing underlayment
  • Compatible Substrates: Concrete, wood subfloors, and existing tile

HYDRO-BLOKĀ® Uncoupling Membrane is a tile underlayment designed to separate tile from substrate movement while providing crack isolation and waterproofing. It is installed beneath ceramic, porcelain, and stone tile over concrete, wood subfloors, and existing tile surfaces.

Key Features
  • Uncoupling Layer:Ā Separates tile from substrate movement.
  • Crack Isolation:Ā Helps limit crack transfer from the substrate to the tile assembly.
  • Waterproof Surface:Ā Creates a waterproof layer beneath tile installations.
  • HDPE Construction:Ā Made from high-density polyethylene.
  • Subfloor Compatibility:Ā Installs over concrete, wood subfloors, and existing tile.
  • No Reinforcing Mats Required:Ā Eliminates the need for additional reinforcing layers.
Best For
  • Tile installations over concrete subfloors
  • Tile installations over wood subfloors
  • Crack isolation beneath ceramic, porcelain, and stone tile
  • Waterproofing beneath tile flooring
  • Residential and commercial tile installations

Why Professionals Choose Tile This

  • Free shipping on eligible orders $200+
  • Same-day shipping before 2 PM CST (Monā€“Sat) for in-stock items
  • Eligible for our Contractor Pricing Program
  • Authorized Hydro-Blok Dealer
HYDRO-BLOK Uncoupling Membrane 1/8" / 300 Sq Ft (36" x 100') $475.00

Description

HYDRO-BLOKĀ® Uncoupling Membrane is a tile underlayment designed for uncoupling, crack isolation, and waterproofing beneath tile installations. It separates tile assemblies from substrate movement while providing a waterproof layer below the finished surface.

Manufactured from high-density polyethylene (HDPE), the membrane is compatible with concrete, wood subfloors, and existing tile surfaces. It is used beneath ceramic, porcelain, and natural stone tile in residential and commercial applications.

Specifications

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

Frequently Asked Questions

What is HYDRO-BLOK Uncoupling Membrane used for?
HYDRO-BLOK Uncoupling Membrane is used for uncoupling, crack isolation, and waterproofing beneath ceramic, porcelain, and stone tile installations.
Can this membrane be installed over existing tile?
Yes. HYDRO-BLOK Uncoupling Membrane is compatible with existing tile, concrete, and wood subfloors when properly prepared.
Is HYDRO-BLOK Uncoupling Membrane waterproof?
Yes. The membrane creates a waterproof layer beneath the tile installation.
What tile types can be installed over the membrane?
Ceramic tile, porcelain tile, and natural stone tile can be installed over HYDRO-BLOK Uncoupling Membrane.
Free Shipping $200+

On Eligible Orders

FAST U.S. SHIPPING

In Stock & Ready to Ship

30 Day Returns

Easy, Hassle-Free Returns

Contractor Pricing

Exclusive Trade Discounts