Floor underlay for tiles

Question

Wanting to tiles the floor. Joist are done, is it better to lay down chipboard/osb/ply. have chip board on site and wondered whether this would work? I am wanting to lay tiles on the floor. What would you put on top of this board? I have heard of Hardie Packer? Also same question for the bathroom area where there's much more moisture. How thick is this layer including the board and anything else. This floor needs to be watertight please. Many thanks

Levente · Accepted Answer

You can use chipboard.On top of this board you don't need to put Hardie backer. I recommend to use decoupling membranes like Schlutter ditra 25, Bal, Mapei Mapeguard UM35, Dural.durabase CI to avoid lateral.movements and cracks after tiling
All this.membrames can be used.in the shower/ bathroom floor areas. Also for wall waterproofing in the bathroom areas sould use waterproofing membranes like Mapeguard wp200 or Schlutter Kerdi 200 with Kerdi flex tape.The cheapest way for wall waterproofing is Mapegam Ws  waterproofing kit. Hope this was helpful

Karolis · Answer

Depends on what kind of floor your laying tiles. If its wooden and shaky you need to tighten the wooden floor with screws each wooden bit. Then you lay hardy board and screw that as well. Then you lay tiles. If you have the grout all over and there's no holes plus you silicon in some parts the floor underneath will remain dry

Kris · Answer

Hi Fa, best to use for you will be Marin plywood and on top waterproof and crack resistant membrane/Matt.

Gavin · Answer

hardie backer mate all day long they come in 6 8 or 10 mm screw down good to go if u tile on ply they will pop and eventually move

Neil · Answer

Ply would be better as not a lot sticks to clipboard then you need detra matting then the tiles you will need to get the adequate adhesive but most tilers get this a trade price same with the matting.

Chesberth · Answer

Depends of what type of floor you are gonna be laying. Tiles can also have heat under layer and wooden would all so need under layer

Den · Answer

Today ply is a No No for tiling onto as its poor quality and delaminating. All suspended floors should use cement boards to strengthen, put back down original flooring or new osb then using tile adhesive fit cement boards and screw down every 250mm this will add 10mm plus the thickness of the tile installation to the over height of the floor. As for watertight in the shower area and wetrooms a tanking kit should be used.

Damian · Answer

Self-Leveling Underlayment, popularly known as SLU, is designed to flatten or possibly level a floor surface prior to installing tile. The floor surface must be properly prepared and primed with the manufacturer’s recommended product and allowed to dry. Many architectural plans and specifications require the floor to be level.

Floor underlay for tiles

Follow Us

Cookies

Manage Cookies

Essential cookies

Analytics & Tracking

Advertising