The NoMorePly 6mm PrePrimed Tile Backing Board is a slim fibre cement board, primed on one side, developed to strengthen timber floors before tiling. It removes the bounce or flex caused by footfall, preventing tiles and grout lines cracking.
The board is water resistant (unlike plywood, which weakens when damp), A1 non-combustible and gives the same rigidity as 15mm plywood in just 6mm, reducing the step into the tiled area. Each 1200 x 600mm board covers 0.72 m² and, being pre-primed, is quicker to fit.
0.72 m²
Coverage per board
Fix with adhesive and screws into a sound timber floor
Screw down loose floorboards or chipboard first and sweep clean. Run two beads of Mega Strength polyurethane adhesive on the back of each board and fix with 8 x 25mm NoMorePly screws, ideally 25mm from the board edge. The lifetime guarantee applies only when the installation guide and the recommended system essentials are used.
Tile with a flexible adhesive
Always use a good quality single part flexible adhesive to fix tiles, and a bead of adhesive on all joints. On solid concrete floors, prime and fix the board with flexible rapid-set tile adhesive instead.
Pre-primed on one side
Priming is best practice before applying tile adhesive. Because the board arrives primed on one side, the installation process is shorter.
Key features
Stiffens timber floors
Removes flex caused by footfall so tiles and grout lines do not crack.
Slim 6mm profile
Gives the same rigidity as 15mm plywood while reducing the step into the tiled area.
Water resistant
Fibre cement does not weaken when damp, unlike plywood.
A1 non-combustible
A1 fire rated for peace of mind in the build-up.
Holds heavy tiles
Holds heavy tiles when fitted correctly: 100 kg per m² is no problem.
Fast and clean to cut
Score and snap with a scoring knife, with reduced dust; use tile nippers for curves.
Technical specification
Product details
Product
6mm PrePrimed Tile Backing Board
Finish
Primed on one side
Dimensions
Coverage per board
0.72 m²
Performance
Fire rating
Class A1, non-combustible
Certification
KIWA BDA; CE approved; low emissions
Guarantee
Lifetime, when installed per the installation guide with the recommended system essentials
Installation
Timber floors
Mega Strength polyurethane adhesive (two beads on the back) plus 8 x 25mm NoMorePly screws
Screw position
Ideally 25mm from the board edge
Joints
Bead of Mega Strength on each board edge; stagger joints where possible
Solid floors
Single part flexible rapid-set adhesive after priming with NoMorePly Tiler's Primer (1 part to 3 parts water)
Cutting
Score one side and snap over a block; tile nippers for curves
Quantities
50 screws fix 6 boards; 200 screws fix 25 boards; 1 tube of Mega Strength per 5 boards
Frequently asked questions
What does this board do?
It strengthens timber floors before tiling, removing the flex caused by footfall that makes tiles and grout lines crack.
How do I fix it to a timber floor?
Screw down existing floorboards, sweep clean, run two beads of Mega Strength adhesive on the back of the board and fix with 8 x 25mm NoMorePly screws, ideally 25mm from the edge. Seal each edge with a bead of adhesive and stagger the joints.
Can I use it on a concrete floor?
Yes. Prime the floor with NoMorePly Tiler's Primer (1 part to 3 parts water) and lay the boards on single part flexible rapid-set adhesive. Where boards straddle solid and timber floor, screw into the timber.
Is it water resistant and fire rated?
Yes. It is water resistant and Class A1 non-combustible.
How do I cut it?
Score one side with a scoring knife and snap over a block. Use tile nippers for curves and shapes.
How many screws and how much adhesive do I need?
As a guide, 50 screws fix 6 boards, 200 screws fix 25 boards, and one tube of Mega Strength adhesive covers 5 boards.