Item: 221863

Durock™ Brand Glass-Mat Tile Backerboard

Water-resistant, easy to use panel for walls, floors, and ceilings.


*This product is currently available for limited distribution in select markets. Please contact your local USG sales representative for more details.
Durock™ Glass-Mat Tile Backerboard is a water-resistant, easy to use panel for walls, floors, and ceilings. Durock™ Glass-Mat Tile Backerboard consists of a treated water-resistant gypsum core that is covered with a coated fiberglass mat facer and back and has a proprietary cementitious surface making it ideal for use in wet areas as a tile substrate. Durock™ Glass-Mat Tile Backerboard combines the tile bond of cement board with the handling and ease of use of a Sheetrock® Brand panel.

Main Features

  • Lightweight and easy to score, snap and fasten
  • Moisture- and mold-resistant substrate
  • Scores the highest achievable rating (10 out of 10) for mold resistance according to ASTM D3273
  • Proprietary cementitious coating provides exceptional tile bond performance
  • 20-Year Limited Warranty


Submittal Sheet PDF 550 KB


  • Anti Mold & Mildew Resistance Yes
  • Fire Resistance
    • Fire Rating Firecode
  • Thermal Resistance No
  • ASTM Classification ASTM C1178


  • GREENGUARD Certification Yes

Physical Data

  • Thickness (in.) 1/2
  • Edge Square Edge
  • Panel Size 48" x 5-10'


USG Durock™ Brand Glass-Mat Tile Backerboard

Underlayment and Backerboard Overview

Underlayment and Backerboard Overview

Documents & Files

Submittal Sheets & Specifications

White Papers

Catalogs & Brochures

SDS, Certifications & Reports