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XPS Tile Backer Board -Waterproof Insulation Building Panel, WEDI-Type Construction Board

Applications

  • Bathrooms and shower enclosures
  • Wet rooms and saunas
  • Walls, floors, and ceilings
  • Under-tile insulation systems
  • Partition walls and interior construction
  • Renovation and new-build projects

Key Specifications/ Special Features:

Product Description

The XPS Tile Backer Board is a lightweight, waterproof, and thermally insulating construction panel designed for tile installation and wet-area building systems.

It features a closed-cell extruded polystyrene (XPS) foam core, providing excellent insulation performance and zero water absorption. The board is reinforced on both sides with a cementitious coating embedded with fiberglass mesh, ensuring high strength, rigidity, and reliable adhesion for tiles and finishes.

This panel is an ideal alternative to traditional cement boards and WEDI-type building boards, offering easier handling, faster installation, and long-term durability.

Key Features

  • 100% Waterproof Closed-cell XPS foam core prevents water absorption, swelling, or mold growth, making it suitable for wet and humid environments.
  • Thermal Insulation Excellent heat insulation properties help reduce heat loss and improve energy efficiency.
  • Lightweight & Easy to Install Much lighter than fiber cement boards, easy to cut, drill, and shape using standard tools.
  • High Compressive Strength Rigid structure provides stable support for tiles, stone, and other surface finishes.
  • Tile-Ready Surface Cement coating with fiberglass mesh ensures strong bonding with tile adhesives and mortars.
  • Eco-Friendly & Durable CFC-free XPS core, long service life, resistant to rot, decay, and chemicals commonly found in construction environments.

Material Structure

  • Core: Extruded Polystyrene (XPS) Foam
  • Surface: Cement-based coating reinforced with fiberglass mesh (both sides)

Installation Compatibility

  • Suitable for ceramic tiles, porcelain tiles, stone, and mosaic
  • Compatible with standard tile adhesives, waterproof mortars, and sealing systems
  • Can be installed on concrete, masonry, wood, OSB, and metal framing

Product Advantages vs Traditional Cement Board

  • Lighter weight, easier handling
  • Integrated waterproofing and insulation
  • Faster installation, reduced labor cost
  • No water absorption or deformation
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