Tile Backer Board Washers


Insulation Fixing Washer Discs for Tile backer boards. These fixing discs have been specially designed to provide an easy secure way to fix marmox and wedi type insulation boards to floor and walls.

SKU: CEMWASHER Category: Tag:
IMPORTANT! All our electric underfloor heating systems must be run via suitable 'Fused Spurs'. Please consult an electrician if in doubt.

Tile Backer Board Washers

Tile Backer Board Washer discs are very easy to fix. Specially designed for use with our tile backer insulation boards in three specific ways.

1: The tile backer board washers have a counter sunk midsection. Because the Marmox style board can pull the screw into the insulation. But not the outer rim of the washer. Consequently, the remaining protrusion sits flush with the board’s surface. Hence making it ready for an unhindered application of the subsequent additional floor layers.

2: Created with a perforated surface which will maintain a maximum board surface exposure. Because the washers have a metal surface. Metal surfaces are not designed to be fixed together with most standard adhesives and plasters as they will not adhere to each other. By strategically perforating the centre of the washer disks. It allows the adhesive or plaster to adhere to the boards surface, minimising any risks of the surface delaminating.

3: To protect the insulation fixing washer discs from corrosion they are galvanised. And this minimises almost any chance of degradation over time.

We would highly recommend using 15 washer discs per 1200 x 600mm board. This is however only a rough guide to the number of washers needed to be used with the tile backer boards. Depending upon the material, thickness, sub surface and the final floor covering to be put onto the boards. Tile backer board washers can be used on either wall or alternatively on floors. It is the responsibility of the installer to use the correct number of discs which hold the board firmly in place.

Tile Backer Boards

Because of their reinforced cement coating, the Tile Backer Boards can be screwed down to a wooden sub-floor using our tile backer board washers. They have an impressive compression strength of 30 tonnes, and are completely water proof and create an effective thermal barrier. The boards are available in four different depths 6mm, 10mm, 20mm and 30mm thicknesses.

If you have any questions or queries about this product. Please feel free to get in touch with us where our technical team can advise you on any installation questions you may have.


We offer next working day delivery for virtually all products and standard UK mainland addresses. If you are not in a standard mainland address our delivery costs vary according to order size and location. For more information please feel free to send us an email or give us a call on 01803 316060. We are here to help.


Orders placed before 12:00 pm will be dispatched that day for a next working day delivery to all UK mainland addresses excluding, Channel Islands & Eire on our entire range of heating products.

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1 review for Tile Backer Board Washers

  1. Chris

    Perfect flush with the board. delivered next day, can’t ask for more A+.

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