Waterproof Tile Backer Boards
The Ideal Substrate for Bathrooms & Wet Rooms
Our Boards
Waterproof tile backer boards provide a durable, moisture-resistant foundation for wall and floor tiling in bathrooms, wet rooms, kitchens and other high-humidity areas. Specifically designed to withstand water exposure, these boards prevent swelling, warping and tile movement — ensuring a long-lasting, professional finish.
Unlike standard plasterboard, waterproof tile backer boards are manufactured to perform in demanding environments. Whether you are installing a shower enclosure, building a wet room or preparing a floor for tiling, they create a stable surface ready for direct tile application.
If you need a reliable solution for moisture-prone areas, waterproof backer boards are the smart choice.
What Are Waterproof Tile Backer Boards?
Waterproof tile backer boards are rigid construction boards made from cement or foam-core materials reinforced for strength. They are engineered to resist water penetration and provide structural stability behind tiles.
They are commonly used in:
- Shower enclosures
- Wet room walls and floors
- Bathroom renovations
- Kitchen splashbacks
- Floors with underfloor heating
When correctly installed and sealed at the joints, they form part of a fully waterproof tiling system.
Why Choose Waterproof Tile Backer Boards?
1. Moisture Protection
Designed specifically for wet areas, they resist water damage and mould growth.
2. Strong & Stable
Provide a rigid base that reduces tile cracking and movement.
3. Ready for Tiling
Tiles can be fixed directly using appropriate adhesive.
4. Suitable for Walls & Floors
Available in multiple thicknesses to suit different applications.
5. Compatible with Underfloor Heating
Work efficiently with electric underfloor heating systems.
Where Should You Use Waterproof Backer Boards?
Bathrooms & Showers
Create a secure waterproof base behind tiles in high-splash areas.
Wet Rooms
Used alongside shower tray formers and tanking systems to ensure full water protection.
Tiled Floors
Add rigidity before laying ceramic, porcelain or stone tiles.
Renovation Projects
Perfect when replacing plasterboard in moisture-prone spaces.
Choosing the Right Thickness
The correct board thickness depends on installation type:
- 6mm – Wall overlay applications
- 10–12mm – Floors or added rigidity
- 20mm+ – Insulation or build-up applications
Always ensure boards are fixed securely and joints are sealed for waterproof performance.
For a fully compatible and professional installation, explore our full range within the Tile Backer Boards category, and complete your installation with our Wet Room Starter Kits, Shower Trays & Systems, and Underfloor Heating Kits for a fully compatible, professional finish.