Tiling onto floorboards covered with hardboard.

[vp323]

I want to tile my bathroom floor. The current floor is floorboards with a layer of hardboard on top. The house is quite old and some of the floorboards have bowed upwards and have made the floor uneven.

Can I put down some kind of levelling compound then tile over the top or would I need to take up the hardboard and replace with marine ply or similar. Would marine ply still be possible as the boards are not level.

Any suggestions of the best way to go forward would be great.

 

[Diyisfun]

Vinyl or ceramic tiles?

 

[vp323]

ceramic

 

[Diyisfun]

You will need to lift the hardboard, marine ply would be good

 

[gcol]

Marine would indeed be good, but it's 30% more expensive than WBP which would be fine. Use 12mm thick stuff and screw it evey 200mm all over the surface. Make sure the screw heads are slighty below the surface of the wood too.

 

[vp323]

Will that work with floor boards that are higher and lower than others, will there still be parts that are higher than others.

Would the adhesive sort out any minor level changes?

 

[gcol]

No, the ply will even out those irregularities.

 

[vp323]

Thanks for your help.