Overwhelming underlayment protection.

Unlike plywood, our Fiber Cement Backerboard and Underlayment products feature an exceptionally durable and dense, non-porous surface. It’s perfect for safeguarding kitchens and bathrooms from moisture and water damage.


  • Preferred by pros; meets local building codes that require the use of backerboard or underlayment under tile in wet areas
  • Suitable for interior floors, walls and countertops
  • Adapts with tile, natural stone Easy to use: lightweight and easy to install


  • Offers the most advanced engineering benefit to a structure
  • Flexible and strong enough to adhere to all sizes and types of tile
  • Guaranteed by a 20-year limited warranty


  • Safeguards floors and other wet areas from water destruction
  • Moisture-resistant: will not swell, decay, delaminate or deteriorate
  • Class (1)A flame spread rating; non-combustible
  • Defends against mold, rot and decay