Change your country/region

It looks like you entered an employee email address, but this is the customer sign-in. Use the link below instead.

Durock™ Brand Uncoupling Mat

A waterproof underlayment membrane that helps suppress the transfer of lateral movement in a subfloor to preserve the integrity of the tile installation



Durock™ Brand Uncoupling Mat is a lightweight, high performance crack isolation, waterproofing and vapor management underlayment membrane for use with porcelain, ceramic, and natural stone tile in both residential and commercial applications. When exposed to stresses from in-plane lateral movement of the substrate, the Durock™ Uncoupling Mat absorbs and prevents the transfer of those stresses (up to 1/8"), helping to preserve the integrity of the tile installation.

The mat features a low-density polyethylene (LDPE) core to reduce roll-back memory during installation. The LDPE core also provides the mat with increased flexibility making it easier to handle, cut and install. The reinforced fleece backing helps to provide a secure mechanical bond to the substrate while the combination of non-woven fabric and unique dimple design allow the installer to fill in the cavities with mortar with minimal effort.

Main Features

  • Provides uncoupling, waterproofing, and vapor management of the substrate
  • Lighter, thinner alternative to 1/4" tile underlayment panels
  • Low density core helps keep the membrane flat during installation
  • Rot-proof and resistant to solvents and alkalis
  • Ceramic tile installation can take place immediately after the membrane is installed
  • Approved for use with modified and unmodified mortars


Installation Guide PDF 3.8 MB


USG Durock™ Brand Uncoupling Mat featured on The BUILD Show with Matt Risinger

Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English) PDF 206.0 KB

White Papers

Sell Sheet (English) PDF 3.7 MB

Installation & Technical Manuals

Installation Guide (English) PDF 3.8 MB

SDS, Certifications & Reports

SDS (English) PDF 122.5 KB
SDS (Spanish) PDF 125.3 KB


Warranties (English) PDF 59.0 KB

Ask a question

Our customer support team will get back to you as soon as possible.

Question Guidlines

  • Questions should relate to this product specifically.
  • For help with pricing, availability, or delivery, please call 800.874.4968 (Monday–Friday, 7am–6pm Central)
  • All questions and answers follow USG’s Terms & Conditions.
  • Your question and USG’s answer may be posted to this page in the future, but none of your personal info will be included.

 Thanks for your message. We’ll be in touch!

q & a

  • Be the first to ask a question

    Let us do the research. We’ll get back to you as quickly as we can.

    Ask USG
  • Need help right away?

    Call our technical support team at 800.USG.4YOU (874.4968)